Merge 91f8fe1af6 into b94a7167a8

Bump libpqxx to v7.7.5

README.md

@@ -40,17 +40,8 @@ Every month we get together with the community (users, contributors, customers,
 
 Keep an eye out for upcoming meetups and events around the world. Somewhere else you want us to be? Please feel free to reach out to tyler `<at>` clickhouse `<dot>` com. You can also peruse [ClickHouse Events](https://clickhouse.com/company/news-events) for a list of all upcoming trainings, meetups, speaking engagements, etc.
 
-The following upcoming meetups are featuring creator of ClickHouse & CTO, Alexey Milovidov:
+Upcoming meetups
 
-* [Raleigh Meetup (Deutsche Bank)](https://www.meetup.com/triangletechtalks/events/302723486/) - September 9
-* [New York Meetup (Rokt)](https://www.meetup.com/clickhouse-new-york-user-group/events/302575342) - September 10
-* [Chicago Meetup (Jump Capital)](https://lu.ma/43tvmrfw) - September 12
-
-Other upcoming meetups
-
-* [Toronto Meetup (Shopify)](https://www.meetup.com/clickhouse-toronto-user-group/events/301490855/) - September 10
-* [Austin Meetup](https://www.meetup.com/clickhouse-austin-user-group/events/302558689/) - September 17
-* [London Meetup](https://www.meetup.com/clickhouse-london-user-group/events/302977267) - September 17
 * [Bangalore Meetup](https://www.meetup.com/clickhouse-bangalore-user-group/events/303208274/) - September 18
 * [Tel Aviv Meetup](https://www.meetup.com/clickhouse-meetup-israel/events/303095121) - September 22
 * [Jakarta Meetup](https://www.meetup.com/clickhouse-indonesia-user-group/events/303191359/) - October 1
@@ -62,13 +53,20 @@ Other upcoming meetups
 * [Dubai Meetup](https://www.meetup.com/clickhouse-dubai-meetup-group/events/303096989/) - November 21
 * [Paris Meetup](https://www.meetup.com/clickhouse-france-user-group/events/303096434) - November 26
 
-Recently completed events
+Recently completed meetups
+
 * [ClickHouse Guangzhou User Group Meetup](https://mp.weixin.qq.com/s/GSvo-7xUoVzCsuUvlLTpCw) - August 25
 * [Seattle Meetup (Statsig)](https://www.meetup.com/clickhouse-seattle-user-group/events/302518075/) - August 27
 * [Melbourne Meetup](https://www.meetup.com/clickhouse-australia-user-group/events/302732666/) - August 27
 * [Sydney Meetup](https://www.meetup.com/clickhouse-australia-user-group/events/302862966/) - September 5
 * [Zurich Meetup](https://www.meetup.com/clickhouse-switzerland-meetup-group/events/302267429/) - September 5
 * [San Francisco Meetup (Cloudflare)](https://www.meetup.com/clickhouse-silicon-valley-meetup-group/events/302540575) - September 5
+* [Raleigh Meetup (Deutsche Bank)](https://www.meetup.com/triangletechtalks/events/302723486/) - September 9
+* [New York Meetup (Rokt)](https://www.meetup.com/clickhouse-new-york-user-group/events/302575342) - September 10
+* [Toronto Meetup (Shopify)](https://www.meetup.com/clickhouse-toronto-user-group/events/301490855/) - September 10
+* [Chicago Meetup (Jump Capital)](https://lu.ma/43tvmrfw) - September 12
+* [London Meetup](https://www.meetup.com/clickhouse-london-user-group/events/302977267) - September 17
+* [Austin Meetup](https://www.meetup.com/clickhouse-austin-user-group/events/302558689/) - September 17
 
 ## Recent Recordings
 * **Recent Meetup Videos**: [Meetup Playlist](https://www.youtube.com/playlist?list=PL0Z2YDlm0b3iNDUzpY1S3L_iV4nARda_U) Whenever possible recordings of the ClickHouse Community Meetups are edited and presented as individual talks. Current featuring "Modern SQL in 2023", "Fast, Concurrent, and Consistent Asynchronous INSERTS in ClickHouse", and "Full-Text Indices: Design and Experiments"

contrib/libpqxx

@@ -1 +1 @@
-Subproject commit c995193a3a14d71f4711f1f421f65a1a1db64640
+Subproject commit 41e4c331564167cca97ad6eccbd5b8879c2ca044

contrib/libpqxx-cmake/CMakeLists.txt

@@ -1,9 +1,9 @@
 set (LIBRARY_DIR "${ClickHouse_SOURCE_DIR}/contrib/libpqxx")
 
 set (SRCS
-    "${LIBRARY_DIR}/src/strconv.cxx"
     "${LIBRARY_DIR}/src/array.cxx"
     "${LIBRARY_DIR}/src/binarystring.cxx"
+    "${LIBRARY_DIR}/src/blob.cxx"
     "${LIBRARY_DIR}/src/connection.cxx"
     "${LIBRARY_DIR}/src/cursor.cxx"
     "${LIBRARY_DIR}/src/encodings.cxx"
@@ -12,59 +12,25 @@ set (SRCS
     "${LIBRARY_DIR}/src/field.cxx"
     "${LIBRARY_DIR}/src/largeobject.cxx"
     "${LIBRARY_DIR}/src/notification.cxx"
+    "${LIBRARY_DIR}/src/params.cxx"
     "${LIBRARY_DIR}/src/pipeline.cxx"
     "${LIBRARY_DIR}/src/result.cxx"
     "${LIBRARY_DIR}/src/robusttransaction.cxx"
+    "${LIBRARY_DIR}/src/row.cxx"
     "${LIBRARY_DIR}/src/sql_cursor.cxx"
+    "${LIBRARY_DIR}/src/strconv.cxx"
     "${LIBRARY_DIR}/src/stream_from.cxx"
     "${LIBRARY_DIR}/src/stream_to.cxx"
     "${LIBRARY_DIR}/src/subtransaction.cxx"
+    "${LIBRARY_DIR}/src/time.cxx"
     "${LIBRARY_DIR}/src/transaction.cxx"
     "${LIBRARY_DIR}/src/transaction_base.cxx"
-    "${LIBRARY_DIR}/src/row.cxx"
-    "${LIBRARY_DIR}/src/params.cxx"
     "${LIBRARY_DIR}/src/util.cxx"
     "${LIBRARY_DIR}/src/version.cxx"
+    "${LIBRARY_DIR}/src/wait.cxx"
 )
 
-# Need to explicitly include each header file, because in the directory include/pqxx there are also files
+add_library(_libpqxx ${SRCS})
-# like just 'array'. So if including the whole directory with `target_include_directories`, it will make
-# conflicts with all includes of <array>.
-set (HDRS
-    "${LIBRARY_DIR}/include/pqxx/array.hxx"
-    "${LIBRARY_DIR}/include/pqxx/params.hxx"
-    "${LIBRARY_DIR}/include/pqxx/binarystring.hxx"
-    "${LIBRARY_DIR}/include/pqxx/composite.hxx"
-    "${LIBRARY_DIR}/include/pqxx/connection.hxx"
-    "${LIBRARY_DIR}/include/pqxx/cursor.hxx"
-    "${LIBRARY_DIR}/include/pqxx/dbtransaction.hxx"
-    "${LIBRARY_DIR}/include/pqxx/errorhandler.hxx"
-    "${LIBRARY_DIR}/include/pqxx/except.hxx"
-    "${LIBRARY_DIR}/include/pqxx/field.hxx"
-    "${LIBRARY_DIR}/include/pqxx/isolation.hxx"
-    "${LIBRARY_DIR}/include/pqxx/largeobject.hxx"
-    "${LIBRARY_DIR}/include/pqxx/nontransaction.hxx"
-    "${LIBRARY_DIR}/include/pqxx/notification.hxx"
-    "${LIBRARY_DIR}/include/pqxx/pipeline.hxx"
-    "${LIBRARY_DIR}/include/pqxx/prepared_statement.hxx"
-    "${LIBRARY_DIR}/include/pqxx/result.hxx"
-    "${LIBRARY_DIR}/include/pqxx/robusttransaction.hxx"
-    "${LIBRARY_DIR}/include/pqxx/row.hxx"
-    "${LIBRARY_DIR}/include/pqxx/separated_list.hxx"
-    "${LIBRARY_DIR}/include/pqxx/strconv.hxx"
-    "${LIBRARY_DIR}/include/pqxx/stream_from.hxx"
-    "${LIBRARY_DIR}/include/pqxx/stream_to.hxx"
-    "${LIBRARY_DIR}/include/pqxx/subtransaction.hxx"
-    "${LIBRARY_DIR}/include/pqxx/transaction.hxx"
-    "${LIBRARY_DIR}/include/pqxx/transaction_base.hxx"
-    "${LIBRARY_DIR}/include/pqxx/types.hxx"
-    "${LIBRARY_DIR}/include/pqxx/util.hxx"
-    "${LIBRARY_DIR}/include/pqxx/version.hxx"
-    "${LIBRARY_DIR}/include/pqxx/zview.hxx"
-)
-
-add_library(_libpqxx ${SRCS} ${HDRS})
-
 target_link_libraries(_libpqxx PUBLIC ch_contrib::libpq)
 target_include_directories (_libpqxx SYSTEM BEFORE PUBLIC "${LIBRARY_DIR}/include")
 

contrib/postgres

@@ -1 +1 @@
-Subproject commit 665ff8c164d56d012e359735efe4d400c0564b44
+Subproject commit cfd77000af28469fcb650485bad65a35e7649e41

contrib/postgres-cmake/pg_config.h

@@ -1,18 +1,6 @@
 /* src/include/pg_config.h.  Generated from pg_config.h.in by configure.  */
 /* src/include/pg_config.h.in.  Generated from configure.in by autoheader.  */
 
-/* Define to the type of arg 1 of 'accept' */
-#define ACCEPT_TYPE_ARG1 int
-
-/* Define to the type of arg 2 of 'accept' */
-#define ACCEPT_TYPE_ARG2 struct sockaddr *
-
-/* Define to the type of arg 3 of 'accept' */
-#define ACCEPT_TYPE_ARG3 size_t
-
-/* Define to the return type of 'accept' */
-#define ACCEPT_TYPE_RETURN int
-
 /* Define if building universal (internal helper macro) */
 /* #undef AC_APPLE_UNIVERSAL_BUILD */
 
@@ -49,6 +37,9 @@
 /* Define to the default TCP port number as a string constant. */
 #define DEF_PGPORT_STR "5432"
 
+/* Define to the file name extension of dynamically-loadable modules. */
+#define DLSUFFIX ".so"
+
 /* Define to build with GSSAPI support. (--with-gssapi) */
 //#define ENABLE_GSS 0
 
@@ -122,6 +113,9 @@
    don't. */
 #define HAVE_DECL_SNPRINTF 1
 
+/* Define to 1 if you have the declaration of `sigwait', and to 0 if you don't. */
+#define HAVE_DECL_SIGWAIT 1
+
 /* Define to 1 if you have the declaration of `strlcat', and to 0 if you
    don't. */
 #if OS_DARWIN
@@ -257,6 +251,9 @@
 /* Define to 1 if you have the `inet_aton' function. */
 #define HAVE_INET_ATON 1
 
+/* Define to 1 if you have the `inet_pton' function. */
+#define HAVE_INET_PTON 1
+
 /* Define to 1 if the system has the type `int64'. */
 /* #undef HAVE_INT64 */
 
@@ -323,6 +320,9 @@
 /* Define to 1 if you have the `z' library (-lz). */
 #define HAVE_LIBZ 1
 
+/* Define to 1 if you have the `zstd' library (-lzstd). */
+/* #undef HAVE_LIBZSTD */
+
 /* Define to 1 if constants of type 'long long int' should have the suffix LL.
    */
 #define HAVE_LL_CONSTANTS 1
@@ -378,6 +378,9 @@
 /* Define to 1 if you have the <poll.h> header file. */
 #define HAVE_POLL_H 1
 
+/* Define to 1 if you have a POSIX-conforming sigwait declaration. */
+/* #undef HAVE_POSIX_DECL_SIGWAIT */
+
 /* Define to 1 if you have the `posix_fadvise' function. */
 #define HAVE_POSIX_FADVISE 1
 
@@ -408,9 +411,6 @@
 /* Define to 1 if you have the <pwd.h> header file. */
 #define HAVE_PWD_H 1
 
-/* Define to 1 if you have the `random' function. */
-#define HAVE_RANDOM 1
-
 /* Define to 1 if you have the <readline.h> header file. */
 /* #undef HAVE_READLINE_H */
 
@@ -426,10 +426,6 @@
 /* Define to 1 if you have the `rint' function. */
 #define HAVE_RINT 1
 
-/* Define to 1 if you have the global variable
-   'rl_completion_append_character'. */
-/* #undef HAVE_RL_COMPLETION_APPEND_CHARACTER */
-
 /* Define to 1 if you have the `rl_completion_matches' function. */
 #define HAVE_RL_COMPLETION_MATCHES 1
 
@@ -439,6 +435,9 @@
 /* Define to 1 if you have the `rl_reset_screen_size' function. */
 /* #undef HAVE_RL_RESET_SCREEN_SIZE */
 
+/* Define to 1 if you have the `rl_variable_bind' function. */
+#define HAVE_RL_VARIABLE_BIND 1
+
 /* Define to 1 if you have the <security/pam_appl.h> header file. */
 #define HAVE_SECURITY_PAM_APPL_H 1
 
@@ -451,6 +450,9 @@
 /* Define to 1 if you have the `shm_open' function. */
 #define HAVE_SHM_OPEN 1
 
+/* Define to 1 if the system has the type `socklen_t'. */
+#define HAVE_SOCKLEN_T 1
+
 /* Define to 1 if you have the `sigprocmask' function. */
 #define HAVE_SIGPROCMASK 1
 
@@ -466,9 +468,6 @@
 /* Define to 1 if you have spinlocks. */
 #define HAVE_SPINLOCKS 1
 
-/* Define to 1 if you have the `srandom' function. */
-#define HAVE_SRANDOM 1
-
 /* Define to 1 if you have the `SSL_CTX_set_num_tickets' function. */
 /* #define HAVE_SSL_CTX_SET_NUM_TICKETS */
 
@@ -885,6 +884,9 @@
 /* Define to select Win32-style shared memory. */
 /* #undef USE_WIN32_SHARED_MEMORY */
 
+/* Define to 1 to build with ZSTD support. (--with-zstd) */
+/* #undef USE_ZSTD */
+
 /* Define to 1 if `wcstombs_l' requires <xlocale.h>. */
 /* #undef WCSTOMBS_L_IN_XLOCALE */
 

docs/en/sql-reference/aggregate-functions/reference/quantileddsketch.md

@@ -9,7 +9,7 @@ Computes an approximate [quantile](https://en.wikipedia.org/wiki/Quantile) of a
 **Syntax**
 
 ``` sql
-quantileDDsketch[relative_accuracy, (level)](expr)
+quantileDD(relative_accuracy, [level])(expr)
 ```
 
 **Arguments**

src/Analyzer/FunctionSecretArgumentsFinderTreeNode.h

@@ -3,370 +3,89 @@
 #include <Parsers/FunctionSecretArgumentsFinder.h>
 #include <Analyzer/ConstantNode.h>
 #include <Analyzer/FunctionNode.h>
-#include <Analyzer/IQueryTreeNode.h>
 #include <Analyzer/IdentifierNode.h>
-#include <Analyzer/ListNode.h>
-#include <Common/KnownObjectNames.h>
-#include <Core/QualifiedTableName.h>
-
-#include <boost/algorithm/string/predicate.hpp>
 
 
 namespace DB
 {
 
+class FunctionTreeNode : public AbstractFunction
+{
+public:
+    class ArgumentTreeNode : public Argument
+    {
+    public:
+        explicit ArgumentTreeNode(const IQueryTreeNode * argument_) : argument(argument_) {}
+        std::unique_ptr<AbstractFunction> getFunction() const override
+        {
+            if (const auto * f = argument->as<FunctionNode>())
+                return std::make_unique<FunctionTreeNode>(*f);
+            return nullptr;
+        }
+        bool isIdentifier() const override { return argument->as<IdentifierNode>(); }
+        bool tryGetString(String * res, bool allow_identifier) const override
+        {
+            if (const auto * literal = argument->as<ConstantNode>())
+            {
+                if (literal->getValue().getType() != Field::Types::String)
+                    return false;
+                if (res)
+                    *res = literal->getValue().safeGet<String>();
+                return true;
+            }
+
+            if (allow_identifier)
+            {
+                if (const auto * id = argument->as<IdentifierNode>())
+                {
+                    if (res)
+                        *res = id->getIdentifier().getFullName();
+                    return true;
+                }
+            }
+
+            return false;
+        }
+    private:
+        const IQueryTreeNode * argument = nullptr;
+    };
+
+    class ArgumentsTreeNode : public Arguments
+    {
+    public:
+        explicit ArgumentsTreeNode(const QueryTreeNodes * arguments_) : arguments(arguments_) {}
+        size_t size() const override { return arguments ? arguments->size() : 0; }
+        std::unique_ptr<Argument> at(size_t n) const override { return std::make_unique<ArgumentTreeNode>(arguments->at(n).get()); }
+    private:
+        const QueryTreeNodes * arguments = nullptr;
+    };
+
+    explicit FunctionTreeNode(const FunctionNode & function_) : function(&function_)
+    {
+        if (const auto & nodes = function->getArguments().getNodes(); !nodes.empty())
+            arguments = std::make_unique<ArgumentsTreeNode>(&nodes);
+    }
+    String name() const override { return function->getFunctionName(); }
+private:
+    const FunctionNode * function = nullptr;
+};
+
 
 /// Finds arguments of a specified function which should not be displayed for most users for security reasons.
 /// That involves passwords and secret keys.
-class FunctionSecretArgumentsFinderTreeNode
+class FunctionSecretArgumentsFinderTreeNode : public FunctionSecretArgumentsFinder
 {
 public:
-    explicit FunctionSecretArgumentsFinderTreeNode(const FunctionNode & function_) : function(function_), arguments(function.getArguments())
+    explicit FunctionSecretArgumentsFinderTreeNode(const FunctionNode & function_)
+        : FunctionSecretArgumentsFinder(std::make_unique<FunctionTreeNode>(function_))
     {
-        if (arguments.getNodes().empty())
+        if (!function->hasArguments())
             return;
 
-        findFunctionSecretArguments();
+        findOrdinaryFunctionSecretArguments();
     }
 
-    struct Result
-    {
-        /// Result constructed by default means no arguments will be hidden.
-        size_t start = static_cast<size_t>(-1);
-        size_t count = 0; /// Mostly it's either 0 or 1. There are only a few cases where `count` can be greater than 1 (e.g. see `encrypt`).
-                            /// In all known cases secret arguments are consecutive
-        bool are_named = false; /// Arguments like `password = 'password'` are considered as named arguments.
-        /// E.g. "headers" in `url('..', headers('foo' = '[HIDDEN]'))`
-        std::vector<std::string> nested_maps;
-
-        bool hasSecrets() const
-        {
-            return count != 0 || !nested_maps.empty();
-        }
-    };
-
     FunctionSecretArgumentsFinder::Result getResult() const { return result; }
-
-private:
-    const FunctionNode & function;
-    const ListNode & arguments;
-    FunctionSecretArgumentsFinder::Result result;
-
-    void markSecretArgument(size_t index, bool argument_is_named = false)
-    {
-        if (index >= arguments.getNodes().size())
-            return;
-        if (!result.count)
-        {
-            result.start = index;
-            result.are_named = argument_is_named;
-        }
-        chassert(index >= result.start); /// We always check arguments consecutively
-        result.count = index + 1 - result.start;
-        if (!argument_is_named)
-            result.are_named = false;
-    }
-
-    void findFunctionSecretArguments()
-    {
-        const auto & name = function.getFunctionName();
-
-        if ((name == "mysql") || (name == "postgresql") || (name == "mongodb"))
-        {
-            /// mysql('host:port', 'database', 'table', 'user', 'password', ...)
-            /// postgresql('host:port', 'database', 'table', 'user', 'password', ...)
-            /// mongodb('host:port', 'database', 'collection', 'user', 'password', ...)
-            findMySQLFunctionSecretArguments();
-        }
-        else if ((name == "s3") || (name == "cosn") || (name == "oss") ||
-                    (name == "deltaLake") || (name == "hudi") || (name == "iceberg"))
-        {
-            /// s3('url', 'aws_access_key_id', 'aws_secret_access_key', ...)
-            findS3FunctionSecretArguments(/* is_cluster_function= */ false);
-        }
-        else if (name == "s3Cluster")
-        {
-            /// s3Cluster('cluster_name', 'url', 'aws_access_key_id', 'aws_secret_access_key', ...)
-            findS3FunctionSecretArguments(/* is_cluster_function= */ true);
-        }
-        else if ((name == "remote") || (name == "remoteSecure"))
-        {
-            /// remote('addresses_expr', 'db', 'table', 'user', 'password', ...)
-            findRemoteFunctionSecretArguments();
-        }
-        else if ((name == "encrypt") || (name == "decrypt") ||
-                    (name == "aes_encrypt_mysql") || (name == "aes_decrypt_mysql") ||
-                    (name == "tryDecrypt"))
-        {
-            /// encrypt('mode', 'plaintext', 'key' [, iv, aad])
-            findEncryptionFunctionSecretArguments();
-        }
-        else if (name == "url")
-        {
-            findURLSecretArguments();
-        }
-    }
-
-    void findMySQLFunctionSecretArguments()
-    {
-        if (isNamedCollectionName(0))
-        {
-            /// mysql(named_collection, ..., password = 'password', ...)
-            findSecretNamedArgument("password", 1);
-        }
-        else
-        {
-            /// mysql('host:port', 'database', 'table', 'user', 'password', ...)
-            markSecretArgument(4);
-        }
-    }
-
-    /// Returns the number of arguments excluding "headers" and "extra_credentials" (which should
-    /// always be at the end). Marks "headers" as secret, if found.
-    size_t excludeS3OrURLNestedMaps()
-    {
-        const auto & nodes = arguments.getNodes();
-        size_t count = nodes.size();
-        while (count > 0)
-        {
-            const FunctionNode * f = nodes.at(count - 1)->as<FunctionNode>();
-            if (!f)
-                break;
-            if (f->getFunctionName() == "headers")
-                result.nested_maps.push_back(f->getFunctionName());
-            else if (f->getFunctionName() != "extra_credentials")
-                break;
-            count -= 1;
-        }
-        return count;
-    }
-
-    void findS3FunctionSecretArguments(bool is_cluster_function)
-    {
-        /// s3Cluster('cluster_name', 'url', ...) has 'url' as its second argument.
-        size_t url_arg_idx = is_cluster_function ? 1 : 0;
-
-        if (!is_cluster_function && isNamedCollectionName(0))
-        {
-            /// s3(named_collection, ..., secret_access_key = 'secret_access_key', ...)
-            findSecretNamedArgument("secret_access_key", 1);
-            return;
-        }
-
-        /// We should check other arguments first because we don't need to do any replacement in case of
-        /// s3('url', NOSIGN, 'format' [, 'compression'] [, extra_credentials(..)] [, headers(..)])
-        /// s3('url', 'format', 'structure' [, 'compression'] [, extra_credentials(..)] [, headers(..)])
-        size_t count = excludeS3OrURLNestedMaps();
-        if ((url_arg_idx + 3 <= count) && (count <= url_arg_idx + 4))
-        {
-            String second_arg;
-            if (tryGetStringFromArgument(url_arg_idx + 1, &second_arg))
-            {
-                if (boost::iequals(second_arg, "NOSIGN"))
-                    return; /// The argument after 'url' is "NOSIGN".
-
-                if (second_arg == "auto" || KnownFormatNames::instance().exists(second_arg))
-                    return; /// The argument after 'url' is a format: s3('url', 'format', ...)
-            }
-        }
-
-        /// We're going to replace 'aws_secret_access_key' with '[HIDDEN]' for the following signatures:
-        /// s3('url', 'aws_access_key_id', 'aws_secret_access_key', ...)
-        /// s3Cluster('cluster_name', 'url', 'aws_access_key_id', 'aws_secret_access_key', 'format', 'compression')
-        if (url_arg_idx + 2 < count)
-            markSecretArgument(url_arg_idx + 2);
-    }
-
-    void findURLSecretArguments()
-    {
-        if (!isNamedCollectionName(0))
-            excludeS3OrURLNestedMaps();
-    }
-
-    bool tryGetStringFromArgument(size_t arg_idx, String * res, bool allow_identifier = true) const
-    {
-        if (arg_idx >= arguments.getNodes().size())
-            return false;
-
-        return tryGetStringFromArgument(arguments.getNodes()[arg_idx], res, allow_identifier);
-    }
-
-    static bool tryGetStringFromArgument(const QueryTreeNodePtr argument, String * res, bool allow_identifier = true)
-    {
-        if (const auto * literal = argument->as<ConstantNode>())
-        {
-            if (literal->getValue().getType() != Field::Types::String)
-                return false;
-            if (res)
-                *res = literal->getValue().safeGet<String>();
-            return true;
-        }
-
-        if (allow_identifier)
-        {
-            if (const auto * id = argument->as<IdentifierNode>())
-            {
-                if (res)
-                    *res = id->getIdentifier().getFullName();
-                return true;
-            }
-        }
-
-        return false;
-    }
-
-    void findRemoteFunctionSecretArguments()
-    {
-        if (isNamedCollectionName(0))
-        {
-            /// remote(named_collection, ..., password = 'password', ...)
-            findSecretNamedArgument("password", 1);
-            return;
-        }
-
-        /// We're going to replace 'password' with '[HIDDEN'] for the following signatures:
-        /// remote('addresses_expr', db.table, 'user' [, 'password'] [, sharding_key])
-        /// remote('addresses_expr', 'db', 'table', 'user' [, 'password'] [, sharding_key])
-        /// remote('addresses_expr', table_function(), 'user' [, 'password'] [, sharding_key])
-
-        /// But we should check the number of arguments first because we don't need to do any replacements in case of
-        /// remote('addresses_expr', db.table)
-        if (arguments.getNodes().size() < 3)
-            return;
-
-        size_t arg_num = 1;
-
-        /// Skip 1 or 2 arguments with table_function() or db.table or 'db', 'table'.
-        const auto * table_function = arguments.getNodes()[arg_num]->as<FunctionNode>();
-        if (table_function && KnownTableFunctionNames::instance().exists(table_function->getFunctionName()))
-        {
-            ++arg_num;
-        }
-        else
-        {
-            std::optional<String> database;
-            std::optional<QualifiedTableName> qualified_table_name;
-            if (!tryGetDatabaseNameOrQualifiedTableName(arg_num, database, qualified_table_name))
-            {
-                /// We couldn't evaluate the argument so we don't know whether it is 'db.table' or just 'db'.
-                /// Hence we can't figure out whether we should skip one argument 'user' or two arguments 'table', 'user'
-                /// before the argument 'password'. So it's safer to wipe two arguments just in case.
-                /// The last argument can be also a `sharding_key`, so we need to check that argument is a literal string
-                /// before wiping it (because the `password` argument is always a literal string).
-                if (tryGetStringFromArgument(arg_num + 2, nullptr, /* allow_identifier= */ false))
-                {
-                    /// Wipe either `password` or `user`.
-                    markSecretArgument(arg_num + 2);
-                }
-                if (tryGetStringFromArgument(arg_num + 3, nullptr, /* allow_identifier= */ false))
-                {
-                    /// Wipe either `password` or `sharding_key`.
-                    markSecretArgument(arg_num + 3);
-                }
-                return;
-            }
-
-            /// Skip the current argument (which is either a database name or a qualified table name).
-            ++arg_num;
-            if (database)
-            {
-                /// Skip the 'table' argument if the previous argument was a database name.
-                ++arg_num;
-            }
-        }
-
-        /// Skip username.
-        ++arg_num;
-
-        /// Do our replacement:
-        /// remote('addresses_expr', db.table, 'user', 'password', ...) -> remote('addresses_expr', db.table, 'user', '[HIDDEN]', ...)
-        /// The last argument can be also a `sharding_key`, so we need to check that argument is a literal string
-        /// before wiping it (because the `password` argument is always a literal string).
-        bool can_be_password = tryGetStringFromArgument(arg_num, nullptr, /* allow_identifier= */ false);
-        if (can_be_password)
-            markSecretArgument(arg_num);
-    }
-
-    /// Tries to get either a database name or a qualified table name from an argument.
-    /// Empty string is also allowed (it means the default database).
-    /// The function is used by findRemoteFunctionSecretArguments() to determine how many arguments to skip before a password.
-    bool tryGetDatabaseNameOrQualifiedTableName(
-        size_t arg_idx,
-        std::optional<String> & res_database,
-        std::optional<QualifiedTableName> & res_qualified_table_name) const
-    {
-        res_database.reset();
-        res_qualified_table_name.reset();
-
-        String str;
-        if (!tryGetStringFromArgument(arg_idx, &str, /* allow_identifier= */ true))
-            return false;
-
-        if (str.empty())
-        {
-            res_database = "";
-            return true;
-        }
-
-        auto qualified_table_name = QualifiedTableName::tryParseFromString(str);
-        if (!qualified_table_name)
-            return false;
-
-        if (qualified_table_name->database.empty())
-            res_database = std::move(qualified_table_name->table);
-        else
-            res_qualified_table_name = std::move(qualified_table_name);
-        return true;
-    }
-
-    void findEncryptionFunctionSecretArguments()
-    {
-        if (arguments.getNodes().empty())
-            return;
-
-        /// We replace all arguments after 'mode' with '[HIDDEN]':
-        /// encrypt('mode', 'plaintext', 'key' [, iv, aad]) -> encrypt('mode', '[HIDDEN]')
-        result.start = 1;
-        result.count = arguments.getNodes().size() - 1;
-    }
-
-
-    /// Whether a specified argument can be the name of a named collection?
-    bool isNamedCollectionName(size_t arg_idx) const
-    {
-        if (arguments.getNodes().size() <= arg_idx)
-            return false;
-
-        const auto * identifier = arguments.getNodes()[arg_idx]->as<IdentifierNode>();
-        return identifier != nullptr;
-    }
-
-    /// Looks for a secret argument with a specified name. This function looks for arguments in format `key=value` where the key is specified.
-    void findSecretNamedArgument(const std::string_view & key, size_t start = 0)
-    {
-        for (size_t i = start; i < arguments.getNodes().size(); ++i)
-        {
-            const auto & argument = arguments.getNodes()[i];
-            const auto * equals_func = argument->as<FunctionNode>();
-            if (!equals_func || (equals_func->getFunctionName() != "equals"))
-                continue;
-
-            const auto * expr_list = equals_func->getArguments().as<ListNode>();
-            if (!expr_list)
-                continue;
-
-            const auto & equal_args = expr_list->getNodes();
-            if (equal_args.size() != 2)
-                continue;
-
-            String found_key;
-            if (!tryGetStringFromArgument(equal_args[0], &found_key))
-                continue;
-
-            if (found_key == key)
-                markSecretArgument(i, /* argument_is_named= */ true);
-        }
-    }
 };
 
 }

src/Analyzer/Resolve/QueryAnalyzer.cpp

@@ -2564,8 +2564,8 @@ void checkFunctionNodeHasEmptyNullsAction(FunctionNode const & node)
     if (node.getNullsAction() != NullsAction::EMPTY)
         throw Exception(
             ErrorCodes::SYNTAX_ERROR,
-            "Function with name '{}' cannot use {} NULLS",
+            "Function with name {} cannot use {} NULLS",
-            node.getFunctionName(),
+            backQuote(node.getFunctionName()),
             node.getNullsAction() == NullsAction::IGNORE_NULLS ? "IGNORE" : "RESPECT");
 }
 }
@@ -3228,16 +3228,16 @@ ProjectionNames QueryAnalyzer::resolveFunction(QueryTreeNodePtr & node, Identifi
             auto hints = NamePrompter<2>::getHints(function_name, possible_function_names);
 
             throw Exception(ErrorCodes::UNKNOWN_FUNCTION,
-                "Function with name '{}' does not exist. In scope {}{}",
+                "Function with name {} does not exist. In scope {}{}",
-                function_name,
+                backQuote(function_name),
                 scope.scope_node->formatASTForErrorMessage(),
                 getHintsErrorMessageSuffix(hints));
         }
 
         if (!function_lambda_arguments_indexes.empty())
             throw Exception(ErrorCodes::UNSUPPORTED_METHOD,
-                "Aggregate function '{}' does not support lambda arguments",
+                "Aggregate function {} does not support lambda arguments",
-                function_name);
+                backQuote(function_name));
 
         auto action = function_node_ptr->getNullsAction();
         std::string aggregate_function_name = rewriteAggregateFunctionNameIfNeeded(function_name, action, scope.context);
@@ -3679,10 +3679,10 @@ ProjectionNames QueryAnalyzer::resolveExpressionNode(
 
                 auto hints = IdentifierResolver::collectIdentifierTypoHints(unresolved_identifier, valid_identifiers);
 
-                throw Exception(ErrorCodes::UNKNOWN_IDENTIFIER, "Unknown {}{} identifier '{}' in scope {}{}",
+                throw Exception(ErrorCodes::UNKNOWN_IDENTIFIER, "Unknown {}{} identifier {} in scope {}{}",
                     toStringLowercase(IdentifierLookupContext::EXPRESSION),
                     message_clarification,
-                    unresolved_identifier.getFullName(),
+                    backQuote(unresolved_identifier.getFullName()),
                     scope.scope_node->formatASTForErrorMessage(),
                     getHintsErrorMessageSuffix(hints));
             }

src/Common/ZooKeeper/IKeeper.cpp

@@ -181,12 +181,6 @@ void SetACLRequest::addRootPath(const String & root_path) { Coordination::addRoo
 void GetACLRequest::addRootPath(const String & root_path) { Coordination::addRootPath(path, root_path); }
 void SyncRequest::addRootPath(const String & root_path) { Coordination::addRootPath(path, root_path); }
 
-void MultiRequest::addRootPath(const String & root_path)
-{
-    for (auto & request : requests)
-        request->addRootPath(root_path);
-}
-
 void CreateResponse::removeRootPath(const String & root_path) { Coordination::removeRootPath(path_created, root_path); }
 void WatchResponse::removeRootPath(const String & root_path) { Coordination::removeRootPath(path, root_path); }
 

src/Common/ZooKeeper/IKeeper.h

@@ -408,11 +408,17 @@ struct ReconfigResponse : virtual Response
     size_t bytesSize() const override { return value.size() + sizeof(stat); }
 };
 
+template <typename T>
 struct MultiRequest : virtual Request
 {
-    Requests requests;
+    std::vector<T> requests;
+
+    void addRootPath(const String & root_path) override
+    {
+        for (auto & request : requests)
+            request->addRootPath(root_path);
+    }
 
-    void addRootPath(const String & root_path) override;
     String getPath() const override { return {}; }
 
     size_t bytesSize() const override

src/Common/ZooKeeper/TestKeeper.cpp

@@ -184,7 +184,7 @@ struct TestKeeperReconfigRequest final : ReconfigRequest, TestKeeperRequest
     std::pair<ResponsePtr, Undo> process(TestKeeper::Container & container, int64_t zxid) const override;
 };
 
-struct TestKeeperMultiRequest final : MultiRequest, TestKeeperRequest
+struct TestKeeperMultiRequest final : MultiRequest<RequestPtr>, TestKeeperRequest
 {
     explicit TestKeeperMultiRequest(const Requests & generic_requests)
         : TestKeeperMultiRequest(std::span(generic_requests))

src/Common/ZooKeeper/ZooKeeperCommon.cpp

@@ -18,14 +18,16 @@ using namespace DB;
 
 void ZooKeeperResponse::write(WriteBuffer & out) const
 {
-    /// Excessive copy to calculate length.
+    auto response_size = Coordination::size(xid) + Coordination::size(zxid) + Coordination::size(error);
-    WriteBufferFromOwnString buf;
-    Coordination::write(xid, buf);
-    Coordination::write(zxid, buf);
-    Coordination::write(error, buf);
     if (error == Error::ZOK)
-        writeImpl(buf);
+        response_size += sizeImpl();
-    Coordination::write(buf.str(), out);
+
+    Coordination::write(static_cast<int32_t>(response_size), out);
+    Coordination::write(xid, out);
+    Coordination::write(zxid, out);
+    Coordination::write(error, out);
+    if (error == Error::ZOK)
+        writeImpl(out);
 }
 
 std::string ZooKeeperRequest::toString(bool short_format) const
@@ -41,12 +43,12 @@ std::string ZooKeeperRequest::toString(bool short_format) const
 
 void ZooKeeperRequest::write(WriteBuffer & out) const
 {
-    /// Excessive copy to calculate length.
+    auto request_size = Coordination::size(xid) + Coordination::size(getOpNum()) + sizeImpl();
-    WriteBufferFromOwnString buf;
+
-    Coordination::write(xid, buf);
+    Coordination::write(static_cast<int32_t>(request_size), out);
-    Coordination::write(getOpNum(), buf);
+    Coordination::write(xid, out);
-    writeImpl(buf);
+    Coordination::write(getOpNum(), out);
-    Coordination::write(buf.str(), out);
+    writeImpl(out);
 }
 
 void ZooKeeperSyncRequest::writeImpl(WriteBuffer & out) const
@@ -54,6 +56,11 @@ void ZooKeeperSyncRequest::writeImpl(WriteBuffer & out) const
     Coordination::write(path, out);
 }
 
+size_t ZooKeeperSyncRequest::sizeImpl() const
+{
+    return Coordination::size(path);
+}
+
 void ZooKeeperSyncRequest::readImpl(ReadBuffer & in)
 {
     Coordination::read(path, in);
@@ -74,6 +81,11 @@ void ZooKeeperSyncResponse::writeImpl(WriteBuffer & out) const
     Coordination::write(path, out);
 }
 
+size_t ZooKeeperSyncResponse::sizeImpl() const
+{
+    return Coordination::size(path);
+}
+
 void ZooKeeperReconfigRequest::writeImpl(WriteBuffer & out) const
 {
     Coordination::write(joining, out);
@@ -82,6 +94,11 @@ void ZooKeeperReconfigRequest::writeImpl(WriteBuffer & out) const
     Coordination::write(version, out);
 }
 
+size_t ZooKeeperReconfigRequest::sizeImpl() const
+{
+    return Coordination::size(joining) + Coordination::size(leaving) + Coordination::size(new_members) + Coordination::size(version);
+}
+
 void ZooKeeperReconfigRequest::readImpl(ReadBuffer & in)
 {
     Coordination::read(joining, in);
@@ -109,6 +126,11 @@ void ZooKeeperReconfigResponse::writeImpl(WriteBuffer & out) const
     Coordination::write(stat, out);
 }
 
+size_t ZooKeeperReconfigResponse::sizeImpl() const
+{
+    return Coordination::size(value) + Coordination::size(stat);
+}
+
 void ZooKeeperWatchResponse::readImpl(ReadBuffer & in)
 {
     Coordination::read(type, in);
@@ -123,6 +145,11 @@ void ZooKeeperWatchResponse::writeImpl(WriteBuffer & out) const
     Coordination::write(path, out);
 }
 
+size_t ZooKeeperWatchResponse::sizeImpl() const
+{
+    return Coordination::size(type) + Coordination::size(state) + Coordination::size(path);
+}
+
 void ZooKeeperWatchResponse::write(WriteBuffer & out) const
 {
     if (error == Error::ZOK)
@@ -137,6 +164,11 @@ void ZooKeeperAuthRequest::writeImpl(WriteBuffer & out) const
     Coordination::write(data, out);
 }
 
+size_t ZooKeeperAuthRequest::sizeImpl() const
+{
+    return Coordination::size(type) + Coordination::size(scheme) + Coordination::size(data);
+}
+
 void ZooKeeperAuthRequest::readImpl(ReadBuffer & in)
 {
     Coordination::read(type, in);
@@ -175,6 +207,12 @@ void ZooKeeperCreateRequest::writeImpl(WriteBuffer & out) const
     Coordination::write(flags, out);
 }
 
+size_t ZooKeeperCreateRequest::sizeImpl() const
+{
+    int32_t flags = 0;
+    return Coordination::size(path) + Coordination::size(data) + Coordination::size(acls) + Coordination::size(flags);
+}
+
 void ZooKeeperCreateRequest::readImpl(ReadBuffer & in)
 {
     Coordination::read(path, in);
@@ -211,12 +249,22 @@ void ZooKeeperCreateResponse::writeImpl(WriteBuffer & out) const
     Coordination::write(path_created, out);
 }
 
+size_t ZooKeeperCreateResponse::sizeImpl() const
+{
+    return Coordination::size(path_created);
+}
+
 void ZooKeeperRemoveRequest::writeImpl(WriteBuffer & out) const
 {
     Coordination::write(path, out);
     Coordination::write(version, out);
 }
 
+size_t ZooKeeperRemoveRequest::sizeImpl() const
+{
+    return Coordination::size(path) + Coordination::size(version);
+}
+
 std::string ZooKeeperRemoveRequest::toStringImpl(bool /*short_format*/) const
 {
     return fmt::format(
@@ -244,6 +292,11 @@ void ZooKeeperRemoveRecursiveRequest::readImpl(ReadBuffer & in)
     Coordination::read(remove_nodes_limit, in);
 }
 
+size_t ZooKeeperRemoveRecursiveRequest::sizeImpl() const
+{
+    return Coordination::size(path) + Coordination::size(remove_nodes_limit);
+}
+
 std::string ZooKeeperRemoveRecursiveRequest::toStringImpl(bool /*short_format*/) const
 {
     return fmt::format(
@@ -259,6 +312,11 @@ void ZooKeeperExistsRequest::writeImpl(WriteBuffer & out) const
     Coordination::write(has_watch, out);
 }
 
+size_t ZooKeeperExistsRequest::sizeImpl() const
+{
+    return Coordination::size(path) + Coordination::size(has_watch);
+}
+
 void ZooKeeperExistsRequest::readImpl(ReadBuffer & in)
 {
     Coordination::read(path, in);
@@ -280,12 +338,22 @@ void ZooKeeperExistsResponse::writeImpl(WriteBuffer & out) const
     Coordination::write(stat, out);
 }
 
+size_t ZooKeeperExistsResponse::sizeImpl() const
+{
+    return Coordination::size(stat);
+}
+
 void ZooKeeperGetRequest::writeImpl(WriteBuffer & out) const
 {
     Coordination::write(path, out);
     Coordination::write(has_watch, out);
 }
 
+size_t ZooKeeperGetRequest::sizeImpl() const
+{
+    return Coordination::size(path) + Coordination::size(has_watch);
+}
+
 void ZooKeeperGetRequest::readImpl(ReadBuffer & in)
 {
     Coordination::read(path, in);
@@ -309,6 +377,11 @@ void ZooKeeperGetResponse::writeImpl(WriteBuffer & out) const
     Coordination::write(stat, out);
 }
 
+size_t ZooKeeperGetResponse::sizeImpl() const
+{
+    return Coordination::size(data) + Coordination::size(stat);
+}
+
 void ZooKeeperSetRequest::writeImpl(WriteBuffer & out) const
 {
     Coordination::write(path, out);
@@ -316,6 +389,11 @@ void ZooKeeperSetRequest::writeImpl(WriteBuffer & out) const
     Coordination::write(version, out);
 }
 
+size_t ZooKeeperSetRequest::sizeImpl() const
+{
+    return Coordination::size(path) + Coordination::size(data) + Coordination::size(version);
+}
+
 void ZooKeeperSetRequest::readImpl(ReadBuffer & in)
 {
     Coordination::read(path, in);
@@ -342,12 +420,22 @@ void ZooKeeperSetResponse::writeImpl(WriteBuffer & out) const
     Coordination::write(stat, out);
 }
 
+size_t ZooKeeperSetResponse::sizeImpl() const
+{
+    return Coordination::size(stat);
+}
+
 void ZooKeeperListRequest::writeImpl(WriteBuffer & out) const
 {
     Coordination::write(path, out);
     Coordination::write(has_watch, out);
 }
 
+size_t ZooKeeperListRequest::sizeImpl() const
+{
+    return Coordination::size(path) + Coordination::size(has_watch);
+}
+
 void ZooKeeperListRequest::readImpl(ReadBuffer & in)
 {
     Coordination::read(path, in);
@@ -366,6 +454,11 @@ void ZooKeeperFilteredListRequest::writeImpl(WriteBuffer & out) const
     Coordination::write(static_cast<uint8_t>(list_request_type), out);
 }
 
+size_t ZooKeeperFilteredListRequest::sizeImpl() const
+{
+    return Coordination::size(path) + Coordination::size(has_watch) + Coordination::size(static_cast<uint8_t>(list_request_type));
+}
+
 void ZooKeeperFilteredListRequest::readImpl(ReadBuffer & in)
 {
     Coordination::read(path, in);
@@ -397,6 +490,11 @@ void ZooKeeperListResponse::writeImpl(WriteBuffer & out) const
     Coordination::write(stat, out);
 }
 
+size_t ZooKeeperListResponse::sizeImpl() const
+{
+    return Coordination::size(names) + Coordination::size(stat);
+}
+
 void ZooKeeperSimpleListResponse::readImpl(ReadBuffer & in)
 {
     Coordination::read(names, in);
@@ -407,6 +505,11 @@ void ZooKeeperSimpleListResponse::writeImpl(WriteBuffer & out) const
     Coordination::write(names, out);
 }
 
+size_t ZooKeeperSimpleListResponse::sizeImpl() const
+{
+    return Coordination::size(names);
+}
+
 void ZooKeeperSetACLRequest::writeImpl(WriteBuffer & out) const
 {
     Coordination::write(path, out);
@@ -414,6 +517,11 @@ void ZooKeeperSetACLRequest::writeImpl(WriteBuffer & out) const
     Coordination::write(version, out);
 }
 
+size_t ZooKeeperSetACLRequest::sizeImpl() const
+{
+    return Coordination::size(path) + Coordination::size(acls) + Coordination::size(version);
+}
+
 void ZooKeeperSetACLRequest::readImpl(ReadBuffer & in)
 {
     Coordination::read(path, in);
@@ -431,6 +539,11 @@ void ZooKeeperSetACLResponse::writeImpl(WriteBuffer & out) const
     Coordination::write(stat, out);
 }
 
+size_t ZooKeeperSetACLResponse::sizeImpl() const
+{
+    return Coordination::size(stat);
+}
+
 void ZooKeeperSetACLResponse::readImpl(ReadBuffer & in)
 {
     Coordination::read(stat, in);
@@ -446,6 +559,11 @@ void ZooKeeperGetACLRequest::writeImpl(WriteBuffer & out) const
     Coordination::write(path, out);
 }
 
+size_t ZooKeeperGetACLRequest::sizeImpl() const
+{
+    return Coordination::size(path);
+}
+
 std::string ZooKeeperGetACLRequest::toStringImpl(bool /*short_format*/) const
 {
     return fmt::format("path = {}", path);
@@ -457,6 +575,11 @@ void ZooKeeperGetACLResponse::writeImpl(WriteBuffer & out) const
     Coordination::write(stat, out);
 }
 
+size_t ZooKeeperGetACLResponse::sizeImpl() const
+{
+    return Coordination::size(acl) + Coordination::size(stat);
+}
+
 void ZooKeeperGetACLResponse::readImpl(ReadBuffer & in)
 {
     Coordination::read(acl, in);
@@ -469,6 +592,11 @@ void ZooKeeperCheckRequest::writeImpl(WriteBuffer & out) const
     Coordination::write(version, out);
 }
 
+size_t ZooKeeperCheckRequest::sizeImpl() const
+{
+    return Coordination::size(path) + Coordination::size(version);
+}
+
 void ZooKeeperCheckRequest::readImpl(ReadBuffer & in)
 {
     Coordination::read(path, in);
@@ -494,6 +622,11 @@ void ZooKeeperErrorResponse::writeImpl(WriteBuffer & out) const
     Coordination::write(error, out);
 }
 
+size_t ZooKeeperErrorResponse::sizeImpl() const
+{
+    return Coordination::size(error);
+}
+
 void ZooKeeperMultiRequest::checkOperationType(OperationType type)
 {
     chassert(!operation_type.has_value() || *operation_type == type);
@@ -596,6 +729,27 @@ void ZooKeeperMultiRequest::writeImpl(WriteBuffer & out) const
     Coordination::write(error, out);
 }
 
+size_t ZooKeeperMultiRequest::sizeImpl() const
+{
+    size_t total_size = 0;
+    for (const auto & request : requests)
+    {
+        const auto & zk_request = dynamic_cast<const ZooKeeperRequest &>(*request);
+
+        bool done = false;
+        int32_t error = -1;
+
+        total_size
+            += Coordination::size(zk_request.getOpNum()) + Coordination::size(done) + Coordination::size(error) + zk_request.sizeImpl();
+    }
+
+    OpNum op_num = OpNum::Error;
+    bool done = true;
+    int32_t error = -1;
+
+    return total_size + Coordination::size(op_num) + Coordination::size(done) + Coordination::size(error);
+}
+
 void ZooKeeperMultiRequest::readImpl(ReadBuffer & in)
 {
     while (true)
@@ -729,31 +883,54 @@ void ZooKeeperMultiResponse::writeImpl(WriteBuffer & out) const
     }
 }
 
-ZooKeeperResponsePtr ZooKeeperHeartbeatRequest::makeResponse() const { return setTime(std::make_shared<ZooKeeperHeartbeatResponse>()); }
+size_t ZooKeeperMultiResponse::sizeImpl() const
-ZooKeeperResponsePtr ZooKeeperSyncRequest::makeResponse() const { return setTime(std::make_shared<ZooKeeperSyncResponse>()); }
+{
-ZooKeeperResponsePtr ZooKeeperAuthRequest::makeResponse() const { return setTime(std::make_shared<ZooKeeperAuthResponse>()); }
+    size_t total_size = 0;
-ZooKeeperResponsePtr ZooKeeperRemoveRequest::makeResponse() const { return setTime(std::make_shared<ZooKeeperRemoveResponse>()); }
+    for (const auto & response : responses)
-ZooKeeperResponsePtr ZooKeeperRemoveRecursiveRequest::makeResponse() const { return setTime(std::make_shared<ZooKeeperRemoveRecursiveResponse>()); }
+    {
-ZooKeeperResponsePtr ZooKeeperExistsRequest::makeResponse() const { return setTime(std::make_shared<ZooKeeperExistsResponse>()); }
+        const ZooKeeperResponse & zk_response = dynamic_cast<const ZooKeeperResponse &>(*response);
-ZooKeeperResponsePtr ZooKeeperGetRequest::makeResponse() const { return setTime(std::make_shared<ZooKeeperGetResponse>()); }
+        OpNum op_num = zk_response.getOpNum();
-ZooKeeperResponsePtr ZooKeeperSetRequest::makeResponse() const { return setTime(std::make_shared<ZooKeeperSetResponse>()); }
+        bool done = false;
-ZooKeeperResponsePtr ZooKeeperReconfigRequest::makeResponse() const { return setTime(std::make_shared<ZooKeeperReconfigResponse>()); }
+        Error op_error = zk_response.error;
-ZooKeeperResponsePtr ZooKeeperListRequest::makeResponse() const { return setTime(std::make_shared<ZooKeeperListResponse>()); }
+
-ZooKeeperResponsePtr ZooKeeperSimpleListRequest::makeResponse() const { return setTime(std::make_shared<ZooKeeperSimpleListResponse>()); }
+        total_size += Coordination::size(op_num) + Coordination::size(done) + Coordination::size(op_error);
+        if (op_error == Error::ZOK || op_num == OpNum::Error)
+            total_size += zk_response.sizeImpl();
+    }
+
+    /// Footer.
+    OpNum op_num = OpNum::Error;
+    bool done = true;
+    int32_t error_read = - 1;
+
+    return total_size + Coordination::size(op_num) + Coordination::size(done) + Coordination::size(error_read);
+}
+
+ZooKeeperResponsePtr ZooKeeperHeartbeatRequest::makeResponse() const { return std::make_shared<ZooKeeperHeartbeatResponse>(); }
+ZooKeeperResponsePtr ZooKeeperSyncRequest::makeResponse() const { return std::make_shared<ZooKeeperSyncResponse>(); }
+ZooKeeperResponsePtr ZooKeeperAuthRequest::makeResponse() const { return std::make_shared<ZooKeeperAuthResponse>(); }
+ZooKeeperResponsePtr ZooKeeperRemoveRequest::makeResponse() const { return std::make_shared<ZooKeeperRemoveResponse>(); }
+ZooKeeperResponsePtr ZooKeeperRemoveRecursiveRequest::makeResponse() const { return std::make_shared<ZooKeeperRemoveRecursiveResponse>(); }
+ZooKeeperResponsePtr ZooKeeperExistsRequest::makeResponse() const { return std::make_shared<ZooKeeperExistsResponse>(); }
+ZooKeeperResponsePtr ZooKeeperGetRequest::makeResponse() const { return std::make_shared<ZooKeeperGetResponse>(); }
+ZooKeeperResponsePtr ZooKeeperSetRequest::makeResponse() const { return std::make_shared<ZooKeeperSetResponse>(); }
+ZooKeeperResponsePtr ZooKeeperReconfigRequest::makeResponse() const { return std::make_shared<ZooKeeperReconfigResponse>(); }
+ZooKeeperResponsePtr ZooKeeperListRequest::makeResponse() const { return std::make_shared<ZooKeeperListResponse>(); }
+ZooKeeperResponsePtr ZooKeeperSimpleListRequest::makeResponse() const { return std::make_shared<ZooKeeperSimpleListResponse>(); }
 
 ZooKeeperResponsePtr ZooKeeperCreateRequest::makeResponse() const
 {
     if (not_exists)
-        return setTime(std::make_shared<ZooKeeperCreateIfNotExistsResponse>());
+        return std::make_shared<ZooKeeperCreateIfNotExistsResponse>();
-    return setTime(std::make_shared<ZooKeeperCreateResponse>());
+    return std::make_shared<ZooKeeperCreateResponse>();
 }
 
 ZooKeeperResponsePtr ZooKeeperCheckRequest::makeResponse() const
 {
     if (not_exists)
-        return setTime(std::make_shared<ZooKeeperCheckNotExistsResponse>());
+        return std::make_shared<ZooKeeperCheckNotExistsResponse>();
 
-    return setTime(std::make_shared<ZooKeeperCheckResponse>());
+    return std::make_shared<ZooKeeperCheckResponse>();
 }
 
 ZooKeeperResponsePtr ZooKeeperMultiRequest::makeResponse() const
@@ -764,11 +941,12 @@ ZooKeeperResponsePtr ZooKeeperMultiRequest::makeResponse() const
     else
        response = std::make_shared<ZooKeeperMultiReadResponse>(requests);
 
-    return setTime(std::move(response));
+    return std::move(response);
 }
-ZooKeeperResponsePtr ZooKeeperCloseRequest::makeResponse() const { return setTime(std::make_shared<ZooKeeperCloseResponse>()); }
+
-ZooKeeperResponsePtr ZooKeeperSetACLRequest::makeResponse() const { return setTime(std::make_shared<ZooKeeperSetACLResponse>()); }
+ZooKeeperResponsePtr ZooKeeperCloseRequest::makeResponse() const { return std::make_shared<ZooKeeperCloseResponse>(); }
-ZooKeeperResponsePtr ZooKeeperGetACLRequest::makeResponse() const { return setTime(std::make_shared<ZooKeeperGetACLResponse>()); }
+ZooKeeperResponsePtr ZooKeeperSetACLRequest::makeResponse() const { return std::make_shared<ZooKeeperSetACLResponse>(); }
+ZooKeeperResponsePtr ZooKeeperGetACLRequest::makeResponse() const { return std::make_shared<ZooKeeperGetACLResponse>(); }
 
 void ZooKeeperSessionIDRequest::writeImpl(WriteBuffer & out) const
 {
@@ -777,6 +955,11 @@ void ZooKeeperSessionIDRequest::writeImpl(WriteBuffer & out) const
     Coordination::write(server_id, out);
 }
 
+size_t ZooKeeperSessionIDRequest::sizeImpl() const
+{
+    return Coordination::size(internal_id) + Coordination::size(session_timeout_ms) + Coordination::size(server_id);
+}
+
 void ZooKeeperSessionIDRequest::readImpl(ReadBuffer & in)
 {
     Coordination::read(internal_id, in);
@@ -803,6 +986,11 @@ void ZooKeeperSessionIDResponse::writeImpl(WriteBuffer & out) const
     Coordination::write(server_id, out);
 }
 
+size_t ZooKeeperSessionIDResponse::sizeImpl() const
+{
+    return Coordination::size(internal_id) + Coordination::size(session_id) + Coordination::size(server_id);
+}
+
 
 void ZooKeeperRequest::createLogElements(LogElements & elems) const
 {
@@ -960,40 +1148,6 @@ std::shared_ptr<ZooKeeperRequest> ZooKeeperRequest::read(ReadBuffer & in)
     return request;
 }
 
-ZooKeeperRequest::~ZooKeeperRequest()
-{
-    if (!request_created_time_ns)
-        return;
-    UInt64 elapsed_ns = clock_gettime_ns() - request_created_time_ns;
-    constexpr UInt64 max_request_time_ns = 1000000000ULL; /// 1 sec
-    if (max_request_time_ns < elapsed_ns)
-    {
-        LOG_TEST(getLogger(__PRETTY_FUNCTION__), "Processing of request xid={} took {} ms", xid, elapsed_ns / 1000000UL);
-    }
-}
-
-ZooKeeperResponsePtr ZooKeeperRequest::setTime(ZooKeeperResponsePtr response) const
-{
-    if (request_created_time_ns)
-    {
-        response->response_created_time_ns = clock_gettime_ns();
-    }
-    return response;
-}
-
-ZooKeeperResponse::~ZooKeeperResponse()
-{
-    if (!response_created_time_ns)
-        return;
-    UInt64 elapsed_ns = clock_gettime_ns() - response_created_time_ns;
-    constexpr UInt64 max_request_time_ns = 1000000000ULL; /// 1 sec
-    if (max_request_time_ns < elapsed_ns)
-    {
-        LOG_TEST(getLogger(__PRETTY_FUNCTION__), "Processing of response xid={} took {} ms", xid, elapsed_ns / 1000000UL);
-    }
-}
-
-
 ZooKeeperRequestPtr ZooKeeperRequestFactory::get(OpNum op_num) const
 {
     auto it = op_num_to_request.find(op_num);
@@ -1015,7 +1169,6 @@ void registerZooKeeperRequest(ZooKeeperRequestFactory & factory)
     factory.registerRequest(num, []
     {
         auto res = std::make_shared<RequestT>();
-        res->request_created_time_ns = clock_gettime_ns();
 
         if constexpr (num == OpNum::MultiRead)
             res->operation_type = ZooKeeperMultiRequest::OperationType::Read;

src/Common/ZooKeeper/ZooKeeperCommon.h

@@ -7,13 +7,11 @@
 #include <boost/noncopyable.hpp>
 #include <IO/ReadBuffer.h>
 #include <IO/WriteBuffer.h>
-#include <unordered_map>
 #include <vector>
 #include <memory>
 #include <cstdint>
 #include <optional>
 #include <functional>
-#include <span>
 
 
 namespace Coordination
@@ -25,13 +23,11 @@ struct ZooKeeperResponse : virtual Response
 {
     XID xid = 0;
 
-    UInt64 response_created_time_ns = 0;
-
     ZooKeeperResponse() = default;
     ZooKeeperResponse(const ZooKeeperResponse &) = default;
-    ~ZooKeeperResponse() override;
     virtual void readImpl(ReadBuffer &) = 0;
     virtual void writeImpl(WriteBuffer &) const = 0;
+    virtual size_t sizeImpl() const = 0;
     virtual void write(WriteBuffer & out) const;
     virtual OpNum getOpNum() const = 0;
     virtual void fillLogElements(LogElements & elems, size_t idx) const;
@@ -51,13 +47,11 @@ struct ZooKeeperRequest : virtual Request
 
     bool restored_from_zookeeper_log = false;
 
-    UInt64 request_created_time_ns = 0;
     UInt64 thread_id = 0;
     String query_id;
 
     ZooKeeperRequest() = default;
     ZooKeeperRequest(const ZooKeeperRequest &) = default;
-    ~ZooKeeperRequest() override;
 
     virtual OpNum getOpNum() const = 0;
 
@@ -66,6 +60,7 @@ struct ZooKeeperRequest : virtual Request
     std::string toString(bool short_format = false) const;
 
     virtual void writeImpl(WriteBuffer &) const = 0;
+    virtual size_t sizeImpl() const = 0;
     virtual void readImpl(ReadBuffer &) = 0;
 
     virtual std::string toStringImpl(bool /*short_format*/) const { return ""; }
@@ -73,7 +68,6 @@ struct ZooKeeperRequest : virtual Request
     static std::shared_ptr<ZooKeeperRequest> read(ReadBuffer & in);
 
     virtual ZooKeeperResponsePtr makeResponse() const = 0;
-    ZooKeeperResponsePtr setTime(ZooKeeperResponsePtr response) const;
     virtual bool isReadRequest() const = 0;
 
     virtual void createLogElements(LogElements & elems) const;
@@ -86,6 +80,7 @@ struct ZooKeeperHeartbeatRequest final : ZooKeeperRequest
     String getPath() const override { return {}; }
     OpNum getOpNum() const override { return OpNum::Heartbeat; }
     void writeImpl(WriteBuffer &) const override {}
+    size_t sizeImpl() const override { return 0; }
     void readImpl(ReadBuffer &) override {}
     ZooKeeperResponsePtr makeResponse() const override;
     bool isReadRequest() const override { return false; }
@@ -97,6 +92,7 @@ struct ZooKeeperSyncRequest final : ZooKeeperRequest
     String getPath() const override { return path; }
     OpNum getOpNum() const override { return OpNum::Sync; }
     void writeImpl(WriteBuffer & out) const override;
+    size_t sizeImpl() const override;
     void readImpl(ReadBuffer & in) override;
     std::string toStringImpl(bool short_format) const override;
     ZooKeeperResponsePtr makeResponse() const override;
@@ -109,6 +105,7 @@ struct ZooKeeperSyncResponse final : SyncResponse, ZooKeeperResponse
 {
     void readImpl(ReadBuffer & in) override;
     void writeImpl(WriteBuffer & out) const override;
+    size_t sizeImpl() const override;
     OpNum getOpNum() const override { return OpNum::Sync; }
 };
 
@@ -122,6 +119,7 @@ struct ZooKeeperReconfigRequest final : ZooKeeperRequest
     String getPath() const override { return keeper_config_path; }
     OpNum getOpNum() const override { return OpNum::Reconfig; }
     void writeImpl(WriteBuffer & out) const override;
+    size_t sizeImpl() const override;
     void readImpl(ReadBuffer & in) override;
     std::string toStringImpl(bool short_format) const override;
     ZooKeeperResponsePtr makeResponse() const override;
@@ -138,6 +136,7 @@ struct ZooKeeperReconfigResponse final : ReconfigResponse, ZooKeeperResponse
 {
     void readImpl(ReadBuffer & in) override;
     void writeImpl(WriteBuffer & out) const override;
+    size_t sizeImpl() const override;
     OpNum getOpNum() const override { return OpNum::Reconfig; }
 };
 
@@ -145,6 +144,7 @@ struct ZooKeeperHeartbeatResponse final : ZooKeeperResponse
 {
     void readImpl(ReadBuffer &) override {}
     void writeImpl(WriteBuffer &) const override {}
+    size_t sizeImpl() const override { return 0; }
     OpNum getOpNum() const override { return OpNum::Heartbeat; }
 };
 
@@ -153,6 +153,7 @@ struct ZooKeeperWatchResponse final : WatchResponse, ZooKeeperResponse
     void readImpl(ReadBuffer & in) override;
 
     void writeImpl(WriteBuffer & out) const override;
+    size_t sizeImpl() const override;
 
     void write(WriteBuffer & out) const override;
 
@@ -175,6 +176,7 @@ struct ZooKeeperAuthRequest final : ZooKeeperRequest
     String getPath() const override { return {}; }
     OpNum getOpNum() const override { return OpNum::Auth; }
     void writeImpl(WriteBuffer & out) const override;
+    size_t sizeImpl() const override;
     void readImpl(ReadBuffer & in) override;
     std::string toStringImpl(bool short_format) const override;
 
@@ -189,6 +191,7 @@ struct ZooKeeperAuthResponse final : ZooKeeperResponse
 {
     void readImpl(ReadBuffer &) override {}
     void writeImpl(WriteBuffer &) const override {}
+    size_t sizeImpl() const override { return 0; }
 
     OpNum getOpNum() const override { return OpNum::Auth; }
 
@@ -200,6 +203,7 @@ struct ZooKeeperCloseRequest final : ZooKeeperRequest
     String getPath() const override { return {}; }
     OpNum getOpNum() const override { return OpNum::Close; }
     void writeImpl(WriteBuffer &) const override {}
+    size_t sizeImpl() const override { return 0; }
     void readImpl(ReadBuffer &) override {}
 
     ZooKeeperResponsePtr makeResponse() const override;
@@ -214,6 +218,7 @@ struct ZooKeeperCloseResponse final : ZooKeeperResponse
     }
 
     void writeImpl(WriteBuffer &) const override {}
+    size_t sizeImpl() const override { return 0; }
 
     OpNum getOpNum() const override { return OpNum::Close; }
 };
@@ -228,6 +233,7 @@ struct ZooKeeperCreateRequest final : public CreateRequest, ZooKeeperRequest
 
     OpNum getOpNum() const override { return not_exists ? OpNum::CreateIfNotExists : OpNum::Create; }
     void writeImpl(WriteBuffer & out) const override;
+    size_t sizeImpl() const override;
     void readImpl(ReadBuffer & in) override;
     std::string toStringImpl(bool short_format) const override;
 
@@ -244,6 +250,7 @@ struct ZooKeeperCreateResponse : CreateResponse, ZooKeeperResponse
     void readImpl(ReadBuffer & in) override;
 
     void writeImpl(WriteBuffer & out) const override;
+    size_t sizeImpl() const override;
 
     OpNum getOpNum() const override { return OpNum::Create; }
 
@@ -265,6 +272,7 @@ struct ZooKeeperRemoveRequest final : RemoveRequest, ZooKeeperRequest
 
     OpNum getOpNum() const override { return OpNum::Remove; }
     void writeImpl(WriteBuffer & out) const override;
+    size_t sizeImpl() const override;
     void readImpl(ReadBuffer & in) override;
     std::string toStringImpl(bool short_format) const override;
 
@@ -280,6 +288,7 @@ struct ZooKeeperRemoveResponse final : RemoveResponse, ZooKeeperResponse
 {
     void readImpl(ReadBuffer &) override {}
     void writeImpl(WriteBuffer &) const override {}
+    size_t sizeImpl() const override { return 0; }
     OpNum getOpNum() const override { return OpNum::Remove; }
 
     size_t bytesSize() const override { return RemoveResponse::bytesSize() + sizeof(xid) + sizeof(zxid); }
@@ -293,6 +302,7 @@ struct ZooKeeperRemoveRecursiveRequest final : RemoveRecursiveRequest, ZooKeeper
     OpNum getOpNum() const override { return OpNum::RemoveRecursive; }
     void writeImpl(WriteBuffer & out) const override;
     void readImpl(ReadBuffer & in) override;
+    size_t sizeImpl() const override;
     std::string toStringImpl(bool short_format) const override;
 
     ZooKeeperResponsePtr makeResponse() const override;
@@ -305,6 +315,7 @@ struct ZooKeeperRemoveRecursiveResponse : RemoveRecursiveResponse, ZooKeeperResp
 {
     void readImpl(ReadBuffer &) override {}
     void writeImpl(WriteBuffer &) const override {}
+    size_t sizeImpl() const override { return 0; }
     OpNum getOpNum() const override { return OpNum::RemoveRecursive; }
 
     size_t bytesSize() const override { return RemoveRecursiveResponse::bytesSize() + sizeof(xid) + sizeof(zxid); }
@@ -317,6 +328,7 @@ struct ZooKeeperExistsRequest final : ExistsRequest, ZooKeeperRequest
 
     OpNum getOpNum() const override { return OpNum::Exists; }
     void writeImpl(WriteBuffer & out) const override;
+    size_t sizeImpl() const override;
     void readImpl(ReadBuffer & in) override;
     std::string toStringImpl(bool short_format) const override;
 
@@ -330,6 +342,7 @@ struct ZooKeeperExistsResponse final : ExistsResponse, ZooKeeperResponse
 {
     void readImpl(ReadBuffer & in) override;
     void writeImpl(WriteBuffer & out) const override;
+    size_t sizeImpl() const override;
     OpNum getOpNum() const override { return OpNum::Exists; }
 
     size_t bytesSize() const override { return ExistsResponse::bytesSize() + sizeof(xid) + sizeof(zxid); }
@@ -344,6 +357,7 @@ struct ZooKeeperGetRequest final : GetRequest, ZooKeeperRequest
 
     OpNum getOpNum() const override { return OpNum::Get; }
     void writeImpl(WriteBuffer & out) const override;
+    size_t sizeImpl() const override;
     void readImpl(ReadBuffer & in) override;
     std::string toStringImpl(bool short_format) const override;
 
@@ -357,6 +371,7 @@ struct ZooKeeperGetResponse final : GetResponse, ZooKeeperResponse
 {
     void readImpl(ReadBuffer & in) override;
     void writeImpl(WriteBuffer & out) const override;
+    size_t sizeImpl() const override;
     OpNum getOpNum() const override { return OpNum::Get; }
 
     size_t bytesSize() const override { return GetResponse::bytesSize() + sizeof(xid) + sizeof(zxid); }
@@ -371,6 +386,7 @@ struct ZooKeeperSetRequest final : SetRequest, ZooKeeperRequest
 
     OpNum getOpNum() const override { return OpNum::Set; }
     void writeImpl(WriteBuffer & out) const override;
+    size_t sizeImpl() const override;
     void readImpl(ReadBuffer & in) override;
     std::string toStringImpl(bool short_format) const override;
     ZooKeeperResponsePtr makeResponse() const override;
@@ -385,6 +401,7 @@ struct ZooKeeperSetResponse final : SetResponse, ZooKeeperResponse
 {
     void readImpl(ReadBuffer & in) override;
     void writeImpl(WriteBuffer & out) const override;
+    size_t sizeImpl() const override;
     OpNum getOpNum() const override { return OpNum::Set; }
 
     size_t bytesSize() const override { return SetResponse::bytesSize() + sizeof(xid) + sizeof(zxid); }
@@ -399,6 +416,7 @@ struct ZooKeeperListRequest : ListRequest, ZooKeeperRequest
 
     OpNum getOpNum() const override { return OpNum::List; }
     void writeImpl(WriteBuffer & out) const override;
+    size_t sizeImpl() const override;
     void readImpl(ReadBuffer & in) override;
     std::string toStringImpl(bool short_format) const override;
     ZooKeeperResponsePtr makeResponse() const override;
@@ -419,6 +437,7 @@ struct ZooKeeperFilteredListRequest final : ZooKeeperListRequest
 
     OpNum getOpNum() const override { return OpNum::FilteredList; }
     void writeImpl(WriteBuffer & out) const override;
+    size_t sizeImpl() const override;
     void readImpl(ReadBuffer & in) override;
     std::string toStringImpl(bool short_format) const override;
 
@@ -429,6 +448,7 @@ struct ZooKeeperListResponse : ListResponse, ZooKeeperResponse
 {
     void readImpl(ReadBuffer & in) override;
     void writeImpl(WriteBuffer & out) const override;
+    size_t sizeImpl() const override;
     OpNum getOpNum() const override { return OpNum::List; }
 
     size_t bytesSize() const override { return ListResponse::bytesSize() + sizeof(xid) + sizeof(zxid); }
@@ -440,6 +460,7 @@ struct ZooKeeperSimpleListResponse final : ZooKeeperListResponse
 {
     void readImpl(ReadBuffer & in) override;
     void writeImpl(WriteBuffer & out) const override;
+    size_t sizeImpl() const override;
     OpNum getOpNum() const override { return OpNum::SimpleList; }
 
     size_t bytesSize() const override { return ZooKeeperListResponse::bytesSize() - sizeof(stat); }
@@ -452,6 +473,7 @@ struct ZooKeeperCheckRequest : CheckRequest, ZooKeeperRequest
 
     OpNum getOpNum() const override { return not_exists ? OpNum::CheckNotExists : OpNum::Check; }
     void writeImpl(WriteBuffer & out) const override;
+    size_t sizeImpl() const override;
     void readImpl(ReadBuffer & in) override;
     std::string toStringImpl(bool short_format) const override;
 
@@ -467,6 +489,7 @@ struct ZooKeeperCheckResponse : CheckResponse, ZooKeeperResponse
 {
     void readImpl(ReadBuffer &) override {}
     void writeImpl(WriteBuffer &) const override {}
+    size_t sizeImpl() const override { return 0; }
     OpNum getOpNum() const override { return OpNum::Check; }
 
     size_t bytesSize() const override { return CheckResponse::bytesSize() + sizeof(xid) + sizeof(zxid); }
@@ -483,6 +506,7 @@ struct ZooKeeperErrorResponse final : ErrorResponse, ZooKeeperResponse
 {
     void readImpl(ReadBuffer & in) override;
     void writeImpl(WriteBuffer & out) const override;
+    size_t sizeImpl() const override;
 
     OpNum getOpNum() const override { return OpNum::Error; }
 
@@ -493,6 +517,7 @@ struct ZooKeeperSetACLRequest final : SetACLRequest, ZooKeeperRequest
 {
     OpNum getOpNum() const override { return OpNum::SetACL; }
     void writeImpl(WriteBuffer & out) const override;
+    size_t sizeImpl() const override;
     void readImpl(ReadBuffer & in) override;
     std::string toStringImpl(bool short_format) const override;
     ZooKeeperResponsePtr makeResponse() const override;
@@ -505,6 +530,7 @@ struct ZooKeeperSetACLResponse final : SetACLResponse, ZooKeeperResponse
 {
     void readImpl(ReadBuffer & in) override;
     void writeImpl(WriteBuffer & out) const override;
+    size_t sizeImpl() const override;
     OpNum getOpNum() const override { return OpNum::SetACL; }
 
     size_t bytesSize() const override { return SetACLResponse::bytesSize() + sizeof(xid) + sizeof(zxid); }
@@ -514,6 +540,7 @@ struct ZooKeeperGetACLRequest final : GetACLRequest, ZooKeeperRequest
 {
     OpNum getOpNum() const override { return OpNum::GetACL; }
     void writeImpl(WriteBuffer & out) const override;
+    size_t sizeImpl() const override;
     void readImpl(ReadBuffer & in) override;
     std::string toStringImpl(bool short_format) const override;
     ZooKeeperResponsePtr makeResponse() const override;
@@ -526,12 +553,13 @@ struct ZooKeeperGetACLResponse final : GetACLResponse, ZooKeeperResponse
 {
     void readImpl(ReadBuffer & in) override;
     void writeImpl(WriteBuffer & out) const override;
+    size_t sizeImpl() const override;
     OpNum getOpNum() const override { return OpNum::GetACL; }
 
     size_t bytesSize() const override { return GetACLResponse::bytesSize() + sizeof(xid) + sizeof(zxid); }
 };
 
-struct ZooKeeperMultiRequest final : MultiRequest, ZooKeeperRequest
+struct ZooKeeperMultiRequest final : MultiRequest<ZooKeeperRequestPtr>, ZooKeeperRequest
 {
     OpNum getOpNum() const override;
     ZooKeeperMultiRequest() = default;
@@ -540,6 +568,7 @@ struct ZooKeeperMultiRequest final : MultiRequest, ZooKeeperRequest
     ZooKeeperMultiRequest(std::span<const Coordination::RequestPtr> generic_requests, const ACLs & default_acls);
 
     void writeImpl(WriteBuffer & out) const override;
+    size_t sizeImpl() const override;
     void readImpl(ReadBuffer & in) override;
     std::string toStringImpl(bool short_format) const override;
 
@@ -563,12 +592,14 @@ private:
 
 struct ZooKeeperMultiResponse : MultiResponse, ZooKeeperResponse
 {
-    explicit ZooKeeperMultiResponse(const Requests & requests)
+    ZooKeeperMultiResponse() = default;
+
+    explicit ZooKeeperMultiResponse(const std::vector<ZooKeeperRequestPtr> & requests)
     {
         responses.reserve(requests.size());
 
         for (const auto & request : requests)
-            responses.emplace_back(dynamic_cast<const ZooKeeperRequest &>(*request).makeResponse());
+            responses.emplace_back(request->makeResponse());
     }
 
     explicit ZooKeeperMultiResponse(const Responses & responses_)
@@ -579,6 +610,7 @@ struct ZooKeeperMultiResponse : MultiResponse, ZooKeeperResponse
     void readImpl(ReadBuffer & in) override;
 
     void writeImpl(WriteBuffer & out) const override;
+    size_t sizeImpl() const override;
 
     size_t bytesSize() const override { return MultiResponse::bytesSize() + sizeof(xid) + sizeof(zxid); }
 
@@ -609,6 +641,7 @@ struct ZooKeeperSessionIDRequest final : ZooKeeperRequest
     Coordination::OpNum getOpNum() const override { return OpNum::SessionID; }
     String getPath() const override { return {}; }
     void writeImpl(WriteBuffer & out) const override;
+    size_t sizeImpl() const override;
     void readImpl(ReadBuffer & in) override;
 
     Coordination::ZooKeeperResponsePtr makeResponse() const override;
@@ -627,6 +660,7 @@ struct ZooKeeperSessionIDResponse final : ZooKeeperResponse
     void readImpl(ReadBuffer & in) override;
 
     void writeImpl(WriteBuffer & out) const override;
+    size_t sizeImpl() const override;
 
     Coordination::OpNum getOpNum() const override { return OpNum::SessionID; }
 };

src/Common/ZooKeeper/ZooKeeperIO.cpp

@@ -42,6 +42,32 @@ void write(const Error & x, WriteBuffer & out)
     write(static_cast<int32_t>(x), out);
 }
 
+size_t size(OpNum x)
+{
+    return size(static_cast<int32_t>(x));
+}
+
+size_t size(const std::string & s)
+{
+    return size(static_cast<int32_t>(s.size())) + s.size();
+}
+
+size_t size(const ACL & acl)
+{
+    return size(acl.permissions) + size(acl.scheme) + size(acl.id);
+}
+
+size_t size(const Stat & stat)
+{
+    return size(stat.czxid) + size(stat.mzxid) + size(stat.ctime) + size(stat.mtime) + size(stat.version) + size(stat.cversion)
+        + size(stat.aversion) + size(stat.ephemeralOwner) + size(stat.dataLength) + size(stat.numChildren) + size(stat.pzxid);
+}
+
+size_t size(const Error & x)
+{
+    return size(static_cast<int32_t>(x));
+}
+
 void read(OpNum & x, ReadBuffer & in)
 {
     int32_t raw_op_num;

src/Common/ZooKeeper/ZooKeeperIO.h

@@ -43,6 +43,36 @@ void write(const std::vector<T> & arr, WriteBuffer & out)
         write(elem, out);
 }
 
+template <typename T>
+requires is_arithmetic_v<T>
+size_t size(T x)
+{
+    return sizeof(x);
+}
+
+size_t size(OpNum x);
+size_t size(const std::string & s);
+size_t size(const ACL & acl);
+size_t size(const Stat & stat);
+size_t size(const Error & x);
+
+template <size_t N>
+size_t size(const std::array<char, N>)
+{
+    return size(static_cast<int32_t>(N)) + N;
+}
+
+template <typename T>
+size_t size(const std::vector<T> & arr)
+{
+    size_t total_size = size(static_cast<int32_t>(arr.size()));
+    for (const auto & elem : arr)
+        total_size += size(elem);
+
+    return total_size;
+}
+
+
 template <typename T>
 requires is_arithmetic_v<T>
 void read(T & x, ReadBuffer & in)

src/Coordination/ACLMap.cpp

@@ -45,6 +45,7 @@ uint64_t ACLMap::convertACLs(const Coordination::ACLs & acls)
     if (acls.empty())
         return 0;
 
+    std::lock_guard lock(map_mutex);
     if (acl_to_num.contains(acls))
         return acl_to_num[acls];
 
@@ -62,6 +63,7 @@ Coordination::ACLs ACLMap::convertNumber(uint64_t acls_id) const
     if (acls_id == 0)
         return Coordination::ACLs{};
 
+    std::lock_guard lock(map_mutex);
     if (!num_to_acl.contains(acls_id))
         throw Exception(ErrorCodes::LOGICAL_ERROR, "Unknown ACL id {}. It's a bug", acls_id);
 
@@ -70,6 +72,7 @@ Coordination::ACLs ACLMap::convertNumber(uint64_t acls_id) const
 
 void ACLMap::addMapping(uint64_t acls_id, const Coordination::ACLs & acls)
 {
+    std::lock_guard lock(map_mutex);
     num_to_acl[acls_id] = acls;
     acl_to_num[acls] = acls_id;
     max_acl_id = std::max(acls_id + 1, max_acl_id); /// max_acl_id pointer next slot
@@ -77,11 +80,13 @@ void ACLMap::addMapping(uint64_t acls_id, const Coordination::ACLs & acls)
 
 void ACLMap::addUsage(uint64_t acl_id)
 {
+    std::lock_guard lock(map_mutex);
     usage_counter[acl_id]++;
 }
 
 void ACLMap::removeUsage(uint64_t acl_id)
 {
+    std::lock_guard lock(map_mutex);
     if (!usage_counter.contains(acl_id))
         return;
 

src/Coordination/ACLMap.h

@@ -32,6 +32,8 @@ private:
     NumToACLMap num_to_acl;
     UsageCounter usage_counter;
     uint64_t max_acl_id{1};
+
+    mutable std::mutex map_mutex;
 public:
 
     /// Convert ACL to number. If it's new ACL than adds it to map

src/Coordination/FourLetterCommand.cpp

@@ -301,11 +301,13 @@ String MonitorCommand::run()
 
     print(ret, "server_state", keeper_info.getRole());
 
-    print(ret, "znode_count", state_machine.getNodesCount());
+    const auto & storage_stats = state_machine.getStorageStats();
-    print(ret, "watch_count", state_machine.getTotalWatchesCount());
+
-    print(ret, "ephemerals_count", state_machine.getTotalEphemeralNodesCount());
+    print(ret, "znode_count", storage_stats.nodes_count.load(std::memory_order_relaxed));
-    print(ret, "approximate_data_size", state_machine.getApproximateDataSize());
+    print(ret, "watch_count", storage_stats.total_watches_count.load(std::memory_order_relaxed));
-    print(ret, "key_arena_size", state_machine.getKeyArenaSize());
+    print(ret, "ephemerals_count", storage_stats.total_emphemeral_nodes_count.load(std::memory_order_relaxed));
+    print(ret, "approximate_data_size", storage_stats.approximate_data_size.load(std::memory_order_relaxed));
+    print(ret, "key_arena_size", 0);
     print(ret, "latest_snapshot_size", state_machine.getLatestSnapshotSize());
 
 #if defined(OS_LINUX) || defined(OS_DARWIN)
@@ -387,6 +389,7 @@ String ServerStatCommand::run()
 
     auto & stats = keeper_dispatcher.getKeeperConnectionStats();
     Keeper4LWInfo keeper_info = keeper_dispatcher.getKeeper4LWInfo();
+    const auto & storage_stats = keeper_dispatcher.getStateMachine().getStorageStats();
 
     write("ClickHouse Keeper version", String(VERSION_DESCRIBE) + "-" + VERSION_GITHASH);
 
@@ -398,9 +401,9 @@ String ServerStatCommand::run()
     write("Sent", toString(stats.getPacketsSent()));
     write("Connections", toString(keeper_info.alive_connections_count));
     write("Outstanding", toString(keeper_info.outstanding_requests_count));
-    write("Zxid", formatZxid(keeper_info.last_zxid));
+    write("Zxid", formatZxid(storage_stats.last_zxid.load(std::memory_order_relaxed)));
     write("Mode", keeper_info.getRole());
-    write("Node count", toString(keeper_info.total_nodes_count));
+    write("Node count", toString(storage_stats.nodes_count.load(std::memory_order_relaxed)));
 
     return buf.str();
 }
@@ -416,6 +419,7 @@ String StatCommand::run()
 
     auto & stats = keeper_dispatcher.getKeeperConnectionStats();
     Keeper4LWInfo keeper_info = keeper_dispatcher.getKeeper4LWInfo();
+    const auto & storage_stats = keeper_dispatcher.getStateMachine().getStorageStats();
 
     write("ClickHouse Keeper version", String(VERSION_DESCRIBE) + "-" + VERSION_GITHASH);
 
@@ -431,9 +435,9 @@ String StatCommand::run()
     write("Sent", toString(stats.getPacketsSent()));
     write("Connections", toString(keeper_info.alive_connections_count));
     write("Outstanding", toString(keeper_info.outstanding_requests_count));
-    write("Zxid", formatZxid(keeper_info.last_zxid));
+    write("Zxid", formatZxid(storage_stats.last_zxid.load(std::memory_order_relaxed)));
     write("Mode", keeper_info.getRole());
-    write("Node count", toString(keeper_info.total_nodes_count));
+    write("Node count", toString(storage_stats.nodes_count.load(std::memory_order_relaxed)));
 
     return buf.str();
 }

src/Coordination/Keeper4LWInfo.h

@@ -1,7 +1,5 @@
 #pragma once
 
-#include <string>
-
 #include <base/types.h>
 #include <Common/Exception.h>
 
@@ -30,9 +28,6 @@ struct Keeper4LWInfo
     uint64_t follower_count;
     uint64_t synced_follower_count;
 
-    uint64_t total_nodes_count;
-    int64_t last_zxid;
-
     String getRole() const
     {
         if (is_standalone)

src/Coordination/KeeperAsynchronousMetrics.cpp

@@ -38,15 +38,16 @@ void updateKeeperInformation(KeeperDispatcher & keeper_dispatcher, AsynchronousM
         is_follower = static_cast<size_t>(keeper_info.is_follower);
         is_exceeding_mem_soft_limit = static_cast<size_t>(keeper_info.is_exceeding_mem_soft_limit);
 
-        zxid = keeper_info.last_zxid;
         const auto & state_machine = keeper_dispatcher.getStateMachine();
-        znode_count = state_machine.getNodesCount();
+        const auto & storage_stats = state_machine.getStorageStats();
-        watch_count = state_machine.getTotalWatchesCount();
+        zxid = storage_stats.last_zxid.load(std::memory_order_relaxed);
-        ephemerals_count = state_machine.getTotalEphemeralNodesCount();
+        znode_count = storage_stats.nodes_count.load(std::memory_order_relaxed);
-        approximate_data_size = state_machine.getApproximateDataSize();
+        watch_count = storage_stats.total_watches_count.load(std::memory_order_relaxed);
-        key_arena_size = state_machine.getKeyArenaSize();
+        ephemerals_count = storage_stats.total_emphemeral_nodes_count.load(std::memory_order_relaxed);
-        session_with_watches = state_machine.getSessionsWithWatchesCount();
+        approximate_data_size = storage_stats.approximate_data_size.load(std::memory_order_relaxed);
-        paths_watched = state_machine.getWatchedPathsCount();
+        key_arena_size = 0;
+        session_with_watches = storage_stats.sessions_with_watches_count.load(std::memory_order_relaxed);
+        paths_watched = storage_stats.watched_paths_count.load(std::memory_order_relaxed);
 
 #    if defined(__linux__) || defined(__APPLE__)
         open_file_descriptor_count = getCurrentProcessFDCount();

src/Coordination/KeeperDispatcher.cpp

@@ -305,7 +305,7 @@ void KeeperDispatcher::requestThread()
                 if (has_read_request)
                 {
                     if (server->isLeaderAlive())
-                        server->putLocalReadRequest(request);
+                        server->putLocalReadRequest({request});
                     else
                         addErrorResponses({request}, Coordination::Error::ZCONNECTIONLOSS);
                 }

src/Coordination/KeeperServer.cpp

@@ -1207,8 +1207,6 @@ Keeper4LWInfo KeeperServer::getPartiallyFilled4LWInfo() const
         result.synced_follower_count = getSyncedFollowerCount();
     }
     result.is_exceeding_mem_soft_limit = isExceedingMemorySoftLimit();
-    result.total_nodes_count = getKeeperStateMachine()->getNodesCount();
-    result.last_zxid = getKeeperStateMachine()->getLastProcessedZxid();
     return result;
 }
 

src/Coordination/KeeperSnapshotManager.cpp

@@ -78,20 +78,20 @@ namespace
             writeBinary(false, out);
 
         /// Serialize stat
-        writeBinary(node.czxid, out);
+        writeBinary(node.stats.czxid, out);
-        writeBinary(node.mzxid, out);
+        writeBinary(node.stats.mzxid, out);
-        writeBinary(node.ctime(), out);
+        writeBinary(node.stats.ctime(), out);
-        writeBinary(node.mtime, out);
+        writeBinary(node.stats.mtime, out);
-        writeBinary(node.version, out);
+        writeBinary(node.stats.version, out);
-        writeBinary(node.cversion, out);
+        writeBinary(node.stats.cversion, out);
-        writeBinary(node.aversion, out);
+        writeBinary(node.stats.aversion, out);
-        writeBinary(node.ephemeralOwner(), out);
+        writeBinary(node.stats.ephemeralOwner(), out);
         if (version < SnapshotVersion::V6)
-            writeBinary(static_cast<int32_t>(node.getData().size()), out);
+            writeBinary(static_cast<int32_t>(node.stats.data_size), out);
-        writeBinary(node.numChildren(), out);
+        writeBinary(node.stats.numChildren(), out);
-        writeBinary(node.pzxid, out);
+        writeBinary(node.stats.pzxid, out);
 
-        writeBinary(node.seqNum(), out);
+        writeBinary(node.stats.seqNum(), out);
 
         if (version >= SnapshotVersion::V4 && version <= SnapshotVersion::V5)
             writeBinary(node.sizeInBytes(), out);
@@ -100,11 +100,11 @@ namespace
     template<typename Node>
     void readNode(Node & node, ReadBuffer & in, SnapshotVersion version, ACLMap & acl_map)
     {
-        readVarUInt(node.data_size, in);
+        readVarUInt(node.stats.data_size, in);
-        if (node.data_size != 0)
+        if (node.stats.data_size != 0)
         {
-            node.data = std::unique_ptr<char[]>(new char[node.data_size]);
+            node.data = std::unique_ptr<char[]>(new char[node.stats.data_size]);
-            in.readStrict(node.data.get(), node.data_size);
+            in.readStrict(node.data.get(), node.stats.data_size);
         }
 
         if (version >= SnapshotVersion::V1)
@@ -141,19 +141,19 @@ namespace
         }
 
         /// Deserialize stat
-        readBinary(node.czxid, in);
+        readBinary(node.stats.czxid, in);
-        readBinary(node.mzxid, in);
+        readBinary(node.stats.mzxid, in);
         int64_t ctime;
         readBinary(ctime, in);
-        node.setCtime(ctime);
+        node.stats.setCtime(ctime);
-        readBinary(node.mtime, in);
+        readBinary(node.stats.mtime, in);
-        readBinary(node.version, in);
+        readBinary(node.stats.version, in);
-        readBinary(node.cversion, in);
+        readBinary(node.stats.cversion, in);
-        readBinary(node.aversion, in);
+        readBinary(node.stats.aversion, in);
         int64_t ephemeral_owner = 0;
         readBinary(ephemeral_owner, in);
         if (ephemeral_owner != 0)
-            node.setEphemeralOwner(ephemeral_owner);
+            node.stats.setEphemeralOwner(ephemeral_owner);
 
         if (version < SnapshotVersion::V6)
         {
@@ -163,14 +163,14 @@ namespace
         int32_t num_children = 0;
         readBinary(num_children, in);
         if (ephemeral_owner == 0)
-            node.setNumChildren(num_children);
+            node.stats.setNumChildren(num_children);
 
-        readBinary(node.pzxid, in);
+        readBinary(node.stats.pzxid, in);
 
         int32_t seq_num = 0;
         readBinary(seq_num, in);
         if (ephemeral_owner == 0)
-            node.setSeqNum(seq_num);
+            node.stats.setSeqNum(seq_num);
 
         if (version >= SnapshotVersion::V4 && version <= SnapshotVersion::V5)
         {
@@ -256,7 +256,7 @@ void KeeperStorageSnapshot<Storage>::serialize(const KeeperStorageSnapshot<Stora
         /// Benign race condition possible while taking snapshot: NuRaft decide to create snapshot at some log id
         /// and only after some time we lock storage and enable snapshot mode. So snapshot_container_size can be
         /// slightly bigger than required.
-        if (node.mzxid > snapshot.zxid)
+        if (node.stats.mzxid > snapshot.zxid)
             break;
         writeBinary(path, out);
         writeNode(node, snapshot.version, out);
@@ -306,7 +306,7 @@ void KeeperStorageSnapshot<Storage>::serialize(const KeeperStorageSnapshot<Stora
 }
 
 template<typename Storage>
-void KeeperStorageSnapshot<Storage>::deserialize(SnapshotDeserializationResult<Storage> & deserialization_result, ReadBuffer & in, KeeperContextPtr keeper_context)
+void KeeperStorageSnapshot<Storage>::deserialize(SnapshotDeserializationResult<Storage> & deserialization_result, ReadBuffer & in, KeeperContextPtr keeper_context) TSA_NO_THREAD_SAFETY_ANALYSIS
 {
     uint8_t version;
     readBinary(version, in);
@@ -435,13 +435,13 @@ void KeeperStorageSnapshot<Storage>::deserialize(SnapshotDeserializationResult<S
             }
         }
 
-        auto ephemeral_owner = node.ephemeralOwner();
+        auto ephemeral_owner = node.stats.ephemeralOwner();
         if constexpr (!use_rocksdb)
-            if (!node.isEphemeral() && node.numChildren() > 0)
+            if (!node.stats.isEphemeral() && node.stats.numChildren() > 0)
-                node.getChildren().reserve(node.numChildren());
+                node.getChildren().reserve(node.stats.numChildren());
 
         if (ephemeral_owner != 0)
-            storage.ephemerals[node.ephemeralOwner()].insert(std::string{path});
+            storage.committed_ephemerals[node.stats.ephemeralOwner()].insert(std::string{path});
 
         if (recalculate_digest)
             storage.nodes_digest += node.getDigest(path);
@@ -467,16 +467,25 @@ void KeeperStorageSnapshot<Storage>::deserialize(SnapshotDeserializationResult<S
         {
             if (itr.key != "/")
             {
-                if (itr.value.numChildren() != static_cast<int32_t>(itr.value.getChildren().size()))
+                if (itr.value.stats.numChildren() != static_cast<int32_t>(itr.value.getChildren().size()))
                 {
 #ifdef NDEBUG
                     /// TODO (alesapin) remove this, it should be always CORRUPTED_DATA.
-                    LOG_ERROR(getLogger("KeeperSnapshotManager"), "Children counter in stat.numChildren {}"
+                    LOG_ERROR(
-                                " is different from actual children size {} for node {}", itr.value.numChildren(), itr.value.getChildren().size(), itr.key);
+                        getLogger("KeeperSnapshotManager"),
+                        "Children counter in stat.numChildren {}"
+                        " is different from actual children size {} for node {}",
+                        itr.value.stats.numChildren(),
+                        itr.value.getChildren().size(),
+                        itr.key);
 #else
-                    throw Exception(ErrorCodes::LOGICAL_ERROR, "Children counter in stat.numChildren {}"
+                    throw Exception(
-                                    " is different from actual children size {} for node {}",
+                        ErrorCodes::LOGICAL_ERROR,
-                                    itr.value.numChildren(), itr.value.getChildren().size(), itr.key);
+                        "Children counter in stat.numChildren {}"
+                        " is different from actual children size {} for node {}",
+                        itr.value.stats.numChildren(),
+                        itr.value.getChildren().size(),
+                        itr.key);
 #endif
                 }
             }
@@ -511,7 +520,7 @@ void KeeperStorageSnapshot<Storage>::deserialize(SnapshotDeserializationResult<S
                 session_auth_counter++;
             }
             if (!ids.empty())
-                storage.session_and_auth[active_session_id] = ids;
+                storage.committed_session_and_auth[active_session_id] = ids;
         }
         current_session_size++;
     }
@@ -527,6 +536,8 @@ void KeeperStorageSnapshot<Storage>::deserialize(SnapshotDeserializationResult<S
         buffer->pos(0);
         deserialization_result.cluster_config = ClusterConfig::deserialize(*buffer);
     }
+
+    storage.updateStats();
 }
 
 template<typename Storage>
@@ -544,7 +555,7 @@ KeeperStorageSnapshot<Storage>::KeeperStorageSnapshot(Storage * storage_, uint64
     begin = storage->getSnapshotIteratorBegin();
     session_and_timeout = storage->getActiveSessions();
     acl_map = storage->acl_map.getMapping();
-    session_and_auth = storage->session_and_auth;
+    session_and_auth = storage->committed_session_and_auth;
 }
 
 template<typename Storage>
@@ -563,7 +574,7 @@ KeeperStorageSnapshot<Storage>::KeeperStorageSnapshot(
     begin = storage->getSnapshotIteratorBegin();
     session_and_timeout = storage->getActiveSessions();
     acl_map = storage->acl_map.getMapping();
-    session_and_auth = storage->session_and_auth;
+    session_and_auth = storage->committed_session_and_auth;
 }
 
 template<typename Storage>

src/Coordination/KeeperStateMachine.cpp

@@ -36,6 +36,11 @@ namespace ProfileEvents
     extern const Event KeeperStorageLockWaitMicroseconds;
 }
 
+namespace CurrentMetrics
+{
+    extern const Metric KeeperAliveConnections;
+}
+
 namespace DB
 {
 
@@ -56,6 +61,7 @@ IKeeperStateMachine::IKeeperStateMachine(
     , snapshots_queue(snapshots_queue_)
     , min_request_size_to_cache(keeper_context_->getCoordinationSettings()->min_request_size_for_cache)
     , log(getLogger("KeeperStateMachine"))
+    , read_pool(CurrentMetrics::KeeperAliveConnections, CurrentMetrics::KeeperAliveConnections, CurrentMetrics::KeeperAliveConnections, 100, 10000, 10000)
     , superdigest(superdigest_)
     , keeper_context(keeper_context_)
     , snapshot_manager_s3(snapshot_manager_s3_)
@@ -175,18 +181,20 @@ void assertDigest(
     }
 }
 
-struct TSA_SCOPED_LOCKABLE LockGuardWithStats final
+template <bool shared = false>
+struct LockGuardWithStats final
 {
-    std::unique_lock<std::mutex> lock;
+    using LockType = std::conditional_t<shared, std::shared_lock<SharedMutex>, std::unique_lock<SharedMutex>>;
-    explicit LockGuardWithStats(std::mutex & mutex) TSA_ACQUIRE(mutex)
+    LockType lock;
+    explicit LockGuardWithStats(SharedMutex & mutex)
     {
         Stopwatch watch;
-        std::unique_lock l(mutex);
+        LockType l(mutex);
         ProfileEvents::increment(ProfileEvents::KeeperStorageLockWaitMicroseconds, watch.elapsedMicroseconds());
         lock = std::move(l);
     }
 
-    ~LockGuardWithStats() TSA_RELEASE() = default;
+    ~LockGuardWithStats() = default;
 };
 
 }
@@ -312,13 +320,12 @@ bool KeeperStateMachine<Storage>::preprocess(const KeeperStorageBase::RequestFor
     if (op_num == Coordination::OpNum::SessionID || op_num == Coordination::OpNum::Reconfig)
         return true;
 
-    LockGuardWithStats lock(storage_and_responses_lock);
-
     if (storage->isFinalized())
         return false;
 
     try
     {
+        LockGuardWithStats<true> lock(storage_mutex);
         storage->preprocessRequest(
             request_for_session.request,
             request_for_session.session_id,
@@ -335,7 +342,12 @@ bool KeeperStateMachine<Storage>::preprocess(const KeeperStorageBase::RequestFor
     }
 
     if (keeper_context->digestEnabled() && request_for_session.digest)
-        assertDigest(*request_for_session.digest, storage->getNodesDigest(false), *request_for_session.request, request_for_session.log_idx, false);
+        assertDigest(
+            *request_for_session.digest,
+            storage->getNodesDigest(false, /*lock_transaction_mutex=*/true),
+            *request_for_session.request,
+            request_for_session.log_idx,
+            false);
 
     return true;
 }
@@ -343,7 +355,7 @@ bool KeeperStateMachine<Storage>::preprocess(const KeeperStorageBase::RequestFor
 template<typename Storage>
 void KeeperStateMachine<Storage>::reconfigure(const KeeperStorageBase::RequestForSession& request_for_session)
 {
-    LockGuardWithStats lock(storage_and_responses_lock);
+    LockGuardWithStats lock(storage_mutex);
     KeeperStorageBase::ResponseForSession response = processReconfiguration(request_for_session);
     if (!responses_queue.push(response))
     {
@@ -461,7 +473,7 @@ nuraft::ptr<nuraft::buffer> KeeperStateMachine<Storage>::commit(const uint64_t l
             response_for_session.response = response;
             response_for_session.request = request_for_session->request;
 
-            LockGuardWithStats lock(storage_and_responses_lock);
+            LockGuardWithStats lock(storage_mutex);
             session_id = storage->getSessionID(session_id_request.session_timeout_ms);
             LOG_DEBUG(log, "Session ID response {} with timeout {}", session_id, session_id_request.session_timeout_ms);
             response->session_id = session_id;
@@ -472,24 +484,31 @@ nuraft::ptr<nuraft::buffer> KeeperStateMachine<Storage>::commit(const uint64_t l
             if (op_num == Coordination::OpNum::Close)
 
             {
-                std::lock_guard lock(request_cache_mutex);
+                std::lock_guard cache_lock(request_cache_mutex);
                 parsed_request_cache.erase(request_for_session->session_id);
             }
 
-            LockGuardWithStats lock(storage_and_responses_lock);
-            KeeperStorageBase::ResponsesForSessions responses_for_sessions
-                = storage->processRequest(request_for_session->request, request_for_session->session_id, request_for_session->zxid);
-
-            for (auto & response_for_session : responses_for_sessions)
             {
-                if (response_for_session.response->xid != Coordination::WATCH_XID)
+                LockGuardWithStats<true> lock(storage_mutex);
-                    response_for_session.request = request_for_session->request;
+                std::lock_guard response_lock(process_and_responses_lock);
+                KeeperStorageBase::ResponsesForSessions responses_for_sessions
+                    = storage->processRequest(request_for_session->request, request_for_session->session_id, request_for_session->zxid);
+                for (auto & response_for_session : responses_for_sessions)
+                {
+                    if (response_for_session.response->xid != Coordination::WATCH_XID)
+                        response_for_session.request = request_for_session->request;
 
-                try_push(response_for_session);
+                    try_push(response_for_session);
+                }
             }
 
             if (keeper_context->digestEnabled() && request_for_session->digest)
-                assertDigest(*request_for_session->digest, storage->getNodesDigest(true), *request_for_session->request, request_for_session->log_idx, true);
+                assertDigest(
+                    *request_for_session->digest,
+                    storage->getNodesDigest(true, /*lock_transaction_mutex=*/true),
+                    *request_for_session->request,
+                    request_for_session->log_idx,
+                    true);
         }
 
         ProfileEvents::increment(ProfileEvents::KeeperCommits);
@@ -534,8 +553,6 @@ bool KeeperStateMachine<Storage>::apply_snapshot(nuraft::snapshot & s)
     }
 
     { /// deserialize and apply snapshot to storage
-        LockGuardWithStats lock(storage_and_responses_lock);
-
         SnapshotDeserializationResult<Storage> snapshot_deserialization_result;
         if (latest_snapshot_ptr)
             snapshot_deserialization_result = snapshot_manager.deserializeSnapshotFromBuffer(latest_snapshot_ptr);
@@ -543,6 +560,7 @@ bool KeeperStateMachine<Storage>::apply_snapshot(nuraft::snapshot & s)
             snapshot_deserialization_result
                 = snapshot_manager.deserializeSnapshotFromBuffer(snapshot_manager.deserializeSnapshotBufferFromDisk(s.get_last_log_idx()));
 
+        LockGuardWithStats storage_lock(storage_mutex);
         /// maybe some logs were preprocessed with log idx larger than the snapshot idx
         /// we have to apply them to the new storage
         storage->applyUncommittedState(*snapshot_deserialization_result.storage, snapshot_deserialization_result.snapshot_meta->get_last_log_idx());
@@ -587,16 +605,7 @@ void KeeperStateMachine<Storage>::rollbackRequest(const KeeperStorageBase::Reque
     if (request_for_session.request->getOpNum() == Coordination::OpNum::SessionID)
         return;
 
-    LockGuardWithStats lock(storage_and_responses_lock);
+    LockGuardWithStats lock(storage_mutex);
-    storage->rollbackRequest(request_for_session.zxid, allow_missing);
-}
-
-template<typename Storage>
-void KeeperStateMachine<Storage>::rollbackRequestNoLock(const KeeperStorageBase::RequestForSession & request_for_session, bool allow_missing)
-{
-    if (request_for_session.request->getOpNum() == Coordination::OpNum::SessionID)
-        return;
-
     storage->rollbackRequest(request_for_session.zxid, allow_missing);
 }
 
@@ -616,7 +625,7 @@ void KeeperStateMachine<Storage>::create_snapshot(nuraft::snapshot & s, nuraft::
     auto snapshot_meta_copy = nuraft::snapshot::deserialize(*snp_buf);
     CreateSnapshotTask snapshot_task;
     { /// lock storage for a short period time to turn on "snapshot mode". After that we can read consistent storage state without locking.
-        LockGuardWithStats lock(storage_and_responses_lock);
+        LockGuardWithStats lock(storage_mutex);
         snapshot_task.snapshot = std::make_shared<KeeperStorageSnapshot<Storage>>(storage.get(), snapshot_meta_copy, getClusterConfig());
     }
 
@@ -681,7 +690,7 @@ void KeeperStateMachine<Storage>::create_snapshot(nuraft::snapshot & s, nuraft::
         }
         {
             /// Destroy snapshot with lock
-            LockGuardWithStats lock(storage_and_responses_lock);
+            LockGuardWithStats lock(storage_mutex);
             LOG_TRACE(log, "Clearing garbage after snapshot");
             /// Turn off "snapshot mode" and clear outdate part of storage state
             storage->clearGarbageAfterSnapshot();
@@ -824,10 +833,10 @@ template<typename Storage>
 void KeeperStateMachine<Storage>::processReadRequest(const KeeperStorageBase::RequestForSession & request_for_session)
 {
     /// Pure local request, just process it with storage
-    LockGuardWithStats lock(storage_and_responses_lock);
+    LockGuardWithStats<true> storage_lock(storage_mutex);
+    std::lock_guard response_lock(process_and_responses_lock);
     auto responses = storage->processRequest(
         request_for_session.request, request_for_session.session_id, std::nullopt, true /*check_acl*/, true /*is_local*/);
-
     for (auto & response_for_session : responses)
     {
         if (response_for_session.response->xid != Coordination::WATCH_XID)
@@ -840,112 +849,116 @@ void KeeperStateMachine<Storage>::processReadRequest(const KeeperStorageBase::Re
 template<typename Storage>
 void KeeperStateMachine<Storage>::shutdownStorage()
 {
-    LockGuardWithStats lock(storage_and_responses_lock);
+    LockGuardWithStats lock(storage_mutex);
     storage->finalize();
 }
 
 template<typename Storage>
 std::vector<int64_t> KeeperStateMachine<Storage>::getDeadSessions()
 {
-    LockGuardWithStats lock(storage_and_responses_lock);
+    LockGuardWithStats lock(storage_mutex);
     return storage->getDeadSessions();
 }
 
 template<typename Storage>
 int64_t KeeperStateMachine<Storage>::getNextZxid() const
 {
-    LockGuardWithStats lock(storage_and_responses_lock);
     return storage->getNextZXID();
 }
 
 template<typename Storage>
 KeeperStorageBase::Digest KeeperStateMachine<Storage>::getNodesDigest() const
 {
-    LockGuardWithStats lock(storage_and_responses_lock);
+    LockGuardWithStats lock(storage_mutex);
-    return storage->getNodesDigest(false);
+    return storage->getNodesDigest(false, /*lock_transaction_mutex=*/true);
 }
 
 template<typename Storage>
 uint64_t KeeperStateMachine<Storage>::getLastProcessedZxid() const
 {
-    LockGuardWithStats lock(storage_and_responses_lock);
     return storage->getZXID();
 }
 
+template<typename Storage>
+const KeeperStorageBase::Stats & KeeperStateMachine<Storage>::getStorageStats() const TSA_NO_THREAD_SAFETY_ANALYSIS
+{
+    return storage->getStorageStats();
+}
+
 template<typename Storage>
 uint64_t KeeperStateMachine<Storage>::getNodesCount() const
 {
-    LockGuardWithStats lock(storage_and_responses_lock);
+    LockGuardWithStats lock(storage_mutex);
     return storage->getNodesCount();
 }
 
 template<typename Storage>
 uint64_t KeeperStateMachine<Storage>::getTotalWatchesCount() const
 {
-    LockGuardWithStats lock(storage_and_responses_lock);
+    LockGuardWithStats lock(storage_mutex);
     return storage->getTotalWatchesCount();
 }
 
 template<typename Storage>
 uint64_t KeeperStateMachine<Storage>::getWatchedPathsCount() const
 {
-    LockGuardWithStats lock(storage_and_responses_lock);
+    LockGuardWithStats lock(storage_mutex);
     return storage->getWatchedPathsCount();
 }
 
 template<typename Storage>
 uint64_t KeeperStateMachine<Storage>::getSessionsWithWatchesCount() const
 {
-    LockGuardWithStats lock(storage_and_responses_lock);
+    LockGuardWithStats lock(storage_mutex);
     return storage->getSessionsWithWatchesCount();
 }
 
 template<typename Storage>
 uint64_t KeeperStateMachine<Storage>::getTotalEphemeralNodesCount() const
 {
-    LockGuardWithStats lock(storage_and_responses_lock);
+    LockGuardWithStats lock(storage_mutex);
     return storage->getTotalEphemeralNodesCount();
 }
 
 template<typename Storage>
 uint64_t KeeperStateMachine<Storage>::getSessionWithEphemeralNodesCount() const
 {
-    LockGuardWithStats lock(storage_and_responses_lock);
+    LockGuardWithStats lock(storage_mutex);
     return storage->getSessionWithEphemeralNodesCount();
 }
 
 template<typename Storage>
 void KeeperStateMachine<Storage>::dumpWatches(WriteBufferFromOwnString & buf) const
 {
-    LockGuardWithStats lock(storage_and_responses_lock);
+    LockGuardWithStats lock(storage_mutex);
     storage->dumpWatches(buf);
 }
 
 template<typename Storage>
 void KeeperStateMachine<Storage>::dumpWatchesByPath(WriteBufferFromOwnString & buf) const
 {
-    LockGuardWithStats lock(storage_and_responses_lock);
+    LockGuardWithStats lock(storage_mutex);
     storage->dumpWatchesByPath(buf);
 }
 
 template<typename Storage>
 void KeeperStateMachine<Storage>::dumpSessionsAndEphemerals(WriteBufferFromOwnString & buf) const
 {
-    LockGuardWithStats lock(storage_and_responses_lock);
+    LockGuardWithStats lock(storage_mutex);
     storage->dumpSessionsAndEphemerals(buf);
 }
 
 template<typename Storage>
 uint64_t KeeperStateMachine<Storage>::getApproximateDataSize() const
 {
-    LockGuardWithStats lock(storage_and_responses_lock);
+    LockGuardWithStats lock(storage_mutex);
     return storage->getApproximateDataSize();
 }
 
 template<typename Storage>
 uint64_t KeeperStateMachine<Storage>::getKeyArenaSize() const
 {
-    LockGuardWithStats lock(storage_and_responses_lock);
+    LockGuardWithStats lock(storage_mutex);
     return storage->getArenaDataSize();
 }
 
@@ -988,7 +1001,7 @@ ClusterConfigPtr IKeeperStateMachine::getClusterConfig() const
 template<typename Storage>
 void KeeperStateMachine<Storage>::recalculateStorageStats()
 {
-    LockGuardWithStats lock(storage_and_responses_lock);
+    LockGuardWithStats lock(storage_mutex);
     LOG_INFO(log, "Recalculating storage stats");
     storage->recalculateStats();
     LOG_INFO(log, "Done recalculating storage stats");

src/Coordination/KeeperStateMachine.h

@@ -85,6 +85,8 @@ public:
     /// Introspection functions for 4lw commands
     virtual uint64_t getLastProcessedZxid() const = 0;
 
+    virtual const KeeperStorageBase::Stats & getStorageStats() const = 0;
+
     virtual uint64_t getNodesCount() const = 0;
     virtual uint64_t getTotalWatchesCount() const = 0;
     virtual uint64_t getWatchedPathsCount() const = 0;
@@ -124,12 +126,16 @@ protected:
     /// Mutex for snapshots
     mutable std::mutex snapshots_lock;
 
-    /// Lock for storage and responses_queue. It's important to process requests
+    /// Lock for the storage
+    /// Storage works in thread-safe way ONLY for preprocessing/processing
+    /// In any other case, unique storage lock needs to be taken
+    mutable SharedMutex storage_mutex;
+    /// Lock for processing and responses_queue. It's important to process requests
     /// and push them to the responses queue while holding this lock. Otherwise
     /// we can get strange cases when, for example client send read request with
     /// watch and after that receive watch response and only receive response
     /// for request.
-    mutable std::mutex storage_and_responses_lock;
+    mutable std::mutex process_and_responses_lock;
 
     std::unordered_map<int64_t, std::unordered_map<Coordination::XID, std::shared_ptr<KeeperStorageBase::RequestForSession>>> parsed_request_cache;
     uint64_t min_request_size_to_cache{0};
@@ -146,6 +152,7 @@ protected:
     mutable std::mutex cluster_config_lock;
     ClusterConfigPtr cluster_config;
 
+    ThreadPool read_pool;
     /// Special part of ACL system -- superdigest specified in server config.
     const std::string superdigest;
 
@@ -153,10 +160,8 @@ protected:
 
     KeeperSnapshotManagerS3 * snapshot_manager_s3;
 
-    virtual KeeperStorageBase::ResponseForSession processReconfiguration(
+    virtual KeeperStorageBase::ResponseForSession processReconfiguration(const KeeperStorageBase::RequestForSession & request_for_session)
-        const KeeperStorageBase::RequestForSession& request_for_session)
+        = 0;
-        TSA_REQUIRES(storage_and_responses_lock) = 0;
-
 };
 
 /// ClickHouse Keeper state machine. Wrapper for KeeperStorage.
@@ -189,10 +194,6 @@ public:
     // (can happen in case of exception during preprocessing)
     void rollbackRequest(const KeeperStorageBase::RequestForSession & request_for_session, bool allow_missing) override;
 
-    void rollbackRequestNoLock(
-        const KeeperStorageBase::RequestForSession & request_for_session,
-        bool allow_missing) TSA_NO_THREAD_SAFETY_ANALYSIS;
-
     /// Apply preliminarily saved (save_logical_snp_obj) snapshot to our state.
     bool apply_snapshot(nuraft::snapshot & s) override;
 
@@ -205,7 +206,7 @@ public:
     // This should be used only for tests or keeper-data-dumper because it violates
     // TSA -- we can't acquire the lock outside of this class or return a storage under lock
     // in a reasonable way.
-    Storage & getStorageUnsafe() TSA_NO_THREAD_SAFETY_ANALYSIS
+    Storage & getStorageUnsafe()
     {
         return *storage;
     }
@@ -224,6 +225,8 @@ public:
     /// Introspection functions for 4lw commands
     uint64_t getLastProcessedZxid() const override;
 
+    const KeeperStorageBase::Stats & getStorageStats() const override;
+
     uint64_t getNodesCount() const override;
     uint64_t getTotalWatchesCount() const override;
     uint64_t getWatchedPathsCount() const override;
@@ -245,12 +248,12 @@ public:
 
 private:
     /// Main state machine logic
-    std::unique_ptr<Storage> storage; //TSA_PT_GUARDED_BY(storage_and_responses_lock);
+    std::unique_ptr<Storage> storage;
 
     /// Save/Load and Serialize/Deserialize logic for snapshots.
     KeeperSnapshotManager<Storage> snapshot_manager;
 
-    KeeperStorageBase::ResponseForSession processReconfiguration(const KeeperStorageBase::RequestForSession & request_for_session)
+    KeeperStorageBase::ResponseForSession processReconfiguration(const KeeperStorageBase::RequestForSession & request_for_session) override;
-        TSA_REQUIRES(storage_and_responses_lock) override;
 };
+
 }

src/Coordination/KeeperStorage.h

@@ -1,10 +1,16 @@
 #pragma once
 
 #include <unordered_map>
+#include <unordered_set>
 #include <vector>
 #include <Coordination/ACLMap.h>
 #include <Coordination/SessionExpiryQueue.h>
 #include <Coordination/SnapshotableHashTable.h>
+#include "Common/StringHashForHeterogeneousLookup.h"
+#include <Common/SharedMutex.h>
+#include <Common/Concepts.h>
+
+#include <base/defines.h>
 
 #include <absl/container/flat_hash_set.h>
 
@@ -23,14 +29,11 @@ using ResponseCallback = std::function<void(const Coordination::ZooKeeperRespons
 using ChildrenSet = absl::flat_hash_set<StringRef, StringRefHash>;
 using SessionAndTimeout = std::unordered_map<int64_t, int64_t>;
 
-/// KeeperRocksNodeInfo is used in RocksDB keeper.
+struct NodeStats
-/// It is serialized directly as POD to RocksDB.
-struct KeeperRocksNodeInfo
 {
     int64_t czxid{0};
     int64_t mzxid{0};
     int64_t pzxid{0};
-    uint64_t acl_id = 0; /// 0 -- no ACL by default
 
     int64_t mtime{0};
 
@@ -38,225 +41,9 @@ struct KeeperRocksNodeInfo
     int32_t cversion{0};
     int32_t aversion{0};
 
-    int32_t seq_num = 0;
+    uint32_t data_size{0};
-    mutable UInt64 digest = 0; /// we cached digest for this node.
-
-    /// as ctime can't be negative because it stores the timestamp when the
-    /// node was created, we can use the MSB for a bool
-    struct
-    {
-        bool is_ephemeral : 1;
-        int64_t ctime : 63;
-    } is_ephemeral_and_ctime{false, 0};
-
-    /// ephemeral notes cannot have children so a node can set either
-    /// ephemeral_owner OR seq_num + num_children
-    union
-    {
-        int64_t ephemeral_owner;
-        struct
-        {
-            int32_t seq_num;
-            int32_t num_children;
-        } children_info;
-    } ephemeral_or_children_data{0};
-
-    bool isEphemeral() const
-    {
-        return is_ephemeral_and_ctime.is_ephemeral;
-    }
-
-    int64_t ephemeralOwner() const
-    {
-        if (isEphemeral())
-            return ephemeral_or_children_data.ephemeral_owner;
-
-        return 0;
-    }
-
-    void setEphemeralOwner(int64_t ephemeral_owner)
-    {
-        is_ephemeral_and_ctime.is_ephemeral = ephemeral_owner != 0;
-        ephemeral_or_children_data.ephemeral_owner = ephemeral_owner;
-    }
-
-    int32_t numChildren() const
-    {
-        if (isEphemeral())
-            return 0;
-
-        return ephemeral_or_children_data.children_info.num_children;
-    }
-
-    void setNumChildren(int32_t num_children)
-    {
-        ephemeral_or_children_data.children_info.num_children = num_children;
-    }
-
-    /// dummy interface for test
-    void addChild(StringRef) {}
-    auto getChildren() const
-    {
-        return std::vector<int>(numChildren());
-    }
-
-    void increaseNumChildren()
-    {
-        chassert(!isEphemeral());
-        ++ephemeral_or_children_data.children_info.num_children;
-    }
-
-    void decreaseNumChildren()
-    {
-        chassert(!isEphemeral());
-        --ephemeral_or_children_data.children_info.num_children;
-    }
-
-    int32_t seqNum() const
-    {
-        if (isEphemeral())
-            return 0;
-
-        return ephemeral_or_children_data.children_info.seq_num;
-    }
-
-    void setSeqNum(int32_t seq_num_)
-    {
-        ephemeral_or_children_data.children_info.seq_num = seq_num_;
-    }
-
-    void increaseSeqNum()
-    {
-        chassert(!isEphemeral());
-        ++ephemeral_or_children_data.children_info.seq_num;
-    }
-
-    int64_t ctime() const
-    {
-        return is_ephemeral_and_ctime.ctime;
-    }
-
-    void setCtime(uint64_t ctime)
-    {
-        is_ephemeral_and_ctime.ctime = ctime;
-    }
 
     void copyStats(const Coordination::Stat & stat);
-};
-
-/// KeeperRocksNode is the memory structure used by RocksDB
-struct KeeperRocksNode : public KeeperRocksNodeInfo
-{
-#if USE_ROCKSDB
-    friend struct RocksDBContainer<KeeperRocksNode>;
-#endif
-    using Meta = KeeperRocksNodeInfo;
-
-    uint64_t size_bytes = 0; // only for compatible, should be deprecated
-
-    uint64_t sizeInBytes() const { return data_size + sizeof(KeeperRocksNodeInfo); }
-    void setData(String new_data)
-    {
-        data_size = static_cast<uint32_t>(new_data.size());
-        if (data_size != 0)
-        {
-            data = std::unique_ptr<char[]>(new char[new_data.size()]);
-            memcpy(data.get(), new_data.data(), data_size);
-        }
-    }
-
-    void shallowCopy(const KeeperRocksNode & other)
-    {
-        czxid = other.czxid;
-        mzxid = other.mzxid;
-        pzxid = other.pzxid;
-        acl_id = other.acl_id; /// 0 -- no ACL by default
-
-        mtime = other.mtime;
-
-        is_ephemeral_and_ctime = other.is_ephemeral_and_ctime;
-
-        ephemeral_or_children_data = other.ephemeral_or_children_data;
-
-        data_size = other.data_size;
-        if (data_size != 0)
-        {
-            data = std::unique_ptr<char[]>(new char[data_size]);
-            memcpy(data.get(), other.data.get(), data_size);
-        }
-
-        version = other.version;
-        cversion = other.cversion;
-        aversion = other.aversion;
-
-        /// cached_digest = other.cached_digest;
-    }
-    void invalidateDigestCache() const;
-    UInt64 getDigest(std::string_view path) const;
-    String getEncodedString();
-    void decodeFromString(const String & buffer_str);
-    void recalculateSize() {}
-    std::string_view getData() const noexcept { return {data.get(), data_size}; }
-
-    void setResponseStat(Coordination::Stat & response_stat) const
-    {
-        response_stat.czxid = czxid;
-        response_stat.mzxid = mzxid;
-        response_stat.ctime = ctime();
-        response_stat.mtime = mtime;
-        response_stat.version = version;
-        response_stat.cversion = cversion;
-        response_stat.aversion = aversion;
-        response_stat.ephemeralOwner = ephemeralOwner();
-        response_stat.dataLength = static_cast<int32_t>(data_size);
-        response_stat.numChildren = numChildren();
-        response_stat.pzxid = pzxid;
-    }
-
-    void reset()
-    {
-        serialized = false;
-    }
-    bool empty() const
-    {
-        return data_size == 0 && mzxid == 0;
-    }
-    std::unique_ptr<char[]> data{nullptr};
-    uint32_t data_size{0};
-private:
-    bool serialized = false;
-};
-
-/// KeeperMemNode should have as minimal size as possible to reduce memory footprint
-/// of stored nodes
-/// New fields should be added to the struct only if it's really necessary
-struct KeeperMemNode
-{
-    int64_t czxid{0};
-    int64_t mzxid{0};
-    int64_t pzxid{0};
-    uint64_t acl_id = 0; /// 0 -- no ACL by default
-
-    int64_t mtime{0};
-
-    std::unique_ptr<char[]> data{nullptr};
-    uint32_t data_size{0};
-
-    int32_t version{0};
-    int32_t cversion{0};
-    int32_t aversion{0};
-
-    mutable uint64_t cached_digest = 0;
-
-    KeeperMemNode() = default;
-
-    KeeperMemNode & operator=(const KeeperMemNode & other);
-    KeeperMemNode(const KeeperMemNode & other);
-
-    KeeperMemNode & operator=(KeeperMemNode && other) noexcept;
-    KeeperMemNode(KeeperMemNode && other) noexcept;
-
-    bool empty() const;
 
     bool isEphemeral() const
     {
@@ -287,6 +74,7 @@ struct KeeperMemNode
 
     void setNumChildren(int32_t num_children)
     {
+        is_ephemeral_and_ctime.is_ephemeral = false;
         ephemeral_or_children_data.children_info.num_children = num_children;
     }
 
@@ -331,34 +119,6 @@ struct KeeperMemNode
         is_ephemeral_and_ctime.ctime = ctime;
     }
 
-    void copyStats(const Coordination::Stat & stat);
-
-    void setResponseStat(Coordination::Stat & response_stat) const;
-
-    /// Object memory size
-    uint64_t sizeInBytes() const;
-
-    void setData(const String & new_data);
-
-    std::string_view getData() const noexcept { return {data.get(), data_size}; }
-
-    void addChild(StringRef child_path);
-
-    void removeChild(StringRef child_path);
-
-    const auto & getChildren() const noexcept { return children; }
-    auto & getChildren() { return children; }
-
-    // Invalidate the calculated digest so it's recalculated again on the next
-    // getDigest call
-    void invalidateDigestCache() const;
-
-    // get the calculated digest of the node
-    UInt64 getDigest(std::string_view path) const;
-
-    // copy only necessary information for preprocessing and digest calculation
-    // (e.g. we don't need to copy list of children)
-    void shallowCopy(const KeeperMemNode & other);
 private:
     /// as ctime can't be negative because it stores the timestamp when the
     /// node was created, we can use the MSB for a bool
@@ -379,7 +139,132 @@ private:
             int32_t num_children;
         } children_info;
     } ephemeral_or_children_data{0};
+};
 
+/// KeeperRocksNodeInfo is used in RocksDB keeper.
+/// It is serialized directly as POD to RocksDB.
+struct KeeperRocksNodeInfo
+{
+    NodeStats stats;
+    uint64_t acl_id = 0; /// 0 -- no ACL by default
+
+    /// dummy interface for test
+    void addChild(StringRef) {}
+    auto getChildren() const
+    {
+        return std::vector<int>(stats.numChildren());
+    }
+
+    void copyStats(const Coordination::Stat & stat);
+};
+
+/// KeeperRocksNode is the memory structure used by RocksDB
+struct KeeperRocksNode : public KeeperRocksNodeInfo
+{
+#if USE_ROCKSDB
+    friend struct RocksDBContainer<KeeperRocksNode>;
+#endif
+    using Meta = KeeperRocksNodeInfo;
+
+    uint64_t size_bytes = 0; // only for compatible, should be deprecated
+
+    uint64_t sizeInBytes() const { return stats.data_size + sizeof(KeeperRocksNodeInfo); }
+
+    void setData(String new_data)
+    {
+        stats.data_size = static_cast<uint32_t>(new_data.size());
+        if (stats.data_size != 0)
+        {
+            data = std::unique_ptr<char[]>(new char[new_data.size()]);
+            memcpy(data.get(), new_data.data(), stats.data_size);
+        }
+    }
+
+    void shallowCopy(const KeeperRocksNode & other)
+    {
+        stats = other.stats;
+        acl_id = other.acl_id;
+        if (stats.data_size != 0)
+        {
+            data = std::unique_ptr<char[]>(new char[stats.data_size]);
+            memcpy(data.get(), other.data.get(), stats.data_size);
+        }
+
+        /// cached_digest = other.cached_digest;
+    }
+    void invalidateDigestCache() const;
+    UInt64 getDigest(std::string_view path) const;
+    String getEncodedString();
+    void decodeFromString(const String & buffer_str);
+    void recalculateSize() {}
+    std::string_view getData() const noexcept { return {data.get(), stats.data_size}; }
+
+    void setResponseStat(Coordination::Stat & response_stat) const;
+
+    void reset()
+    {
+        serialized = false;
+    }
+    bool empty() const
+    {
+        return stats.data_size == 0 && stats.mzxid == 0;
+    }
+    std::unique_ptr<char[]> data{nullptr};
+    mutable UInt64 cached_digest = 0; /// we cached digest for this node.
+private:
+    bool serialized = false;
+};
+
+/// KeeperMemNode should have as minimal size as possible to reduce memory footprint
+/// of stored nodes
+/// New fields should be added to the struct only if it's really necessary
+struct KeeperMemNode
+{
+    NodeStats stats;
+    std::unique_ptr<char[]> data{nullptr};
+    mutable uint64_t cached_digest = 0;
+
+    uint64_t acl_id = 0; /// 0 -- no ACL by default
+
+    KeeperMemNode() = default;
+
+    KeeperMemNode & operator=(const KeeperMemNode & other);
+    KeeperMemNode(const KeeperMemNode & other);
+
+    KeeperMemNode & operator=(KeeperMemNode && other) noexcept;
+    KeeperMemNode(KeeperMemNode && other) noexcept;
+
+    bool empty() const;
+
+    void copyStats(const Coordination::Stat & stat);
+
+    void setResponseStat(Coordination::Stat & response_stat) const;
+
+    /// Object memory size
+    uint64_t sizeInBytes() const;
+
+    void setData(const String & new_data);
+
+    std::string_view getData() const noexcept { return {data.get(), stats.data_size}; }
+
+    void addChild(StringRef child_path);
+
+    void removeChild(StringRef child_path);
+
+    const auto & getChildren() const noexcept { return children; }
+    auto & getChildren() { return children; }
+
+    // Invalidate the calculated digest so it's recalculated again on the next
+    // getDigest call
+    void invalidateDigestCache() const;
+
+    // get the calculated digest of the node
+    UInt64 getDigest(std::string_view path) const;
+
+    // copy only necessary information for preprocessing and digest calculation
+    // (e.g. we don't need to copy list of children)
+    void shallowCopy(const KeeperMemNode & other);
+private:
     ChildrenSet children{};
 };
 
@@ -430,18 +315,187 @@ public:
     };
 
     using Ephemerals = std::unordered_map<int64_t, std::unordered_set<std::string>>;
-    using SessionAndWatcher = std::unordered_map<int64_t, std::unordered_set<std::string>>;
+    struct WatchInfo
+    {
+        std::string_view path;
+        bool is_list_watch;
+
+        bool operator==(const WatchInfo &) const = default;
+    };
+
+    struct WatchInfoHash
+    {
+        auto operator()(WatchInfo info) const
+        {
+            SipHash hash;
+            hash.update(info.path);
+            hash.update(info.is_list_watch);
+            return hash.get64();
+        }
+    };
+
+    using SessionAndWatcher = std::unordered_map<int64_t, std::unordered_set<WatchInfo, WatchInfoHash>>;
     using SessionIDs = std::unordered_set<int64_t>;
 
     /// Just vector of SHA1 from user:password
     using AuthIDs = std::vector<AuthID>;
     using SessionAndAuth = std::unordered_map<int64_t, AuthIDs>;
-    using Watches = std::unordered_map<String /* path, relative of root_path */, SessionIDs>;
+    using Watches = std::unordered_map<
+        String /* path, relative of root_path */,
+        SessionIDs,
+        StringHashForHeterogeneousLookup,
+        StringHashForHeterogeneousLookup::transparent_key_equal>;
+
+    // Applying ZooKeeper request to storage consists of two steps:
+    //  - preprocessing which, instead of applying the changes directly to storage,
+    //    generates deltas with those changes, denoted with the request ZXID
+    //  - processing which applies deltas with the correct ZXID to the storage
+    //
+    // Delta objects allow us two things:
+    //  - fetch the latest, uncommitted state of an object by getting the committed
+    //    state of that same object from the storage and applying the deltas
+    //    in the same order as they are defined
+    //  - quickly commit the changes to the storage
+    struct CreateNodeDelta
+    {
+        Coordination::Stat stat;
+        Coordination::ACLs acls;
+        String data;
+    };
+
+    struct RemoveNodeDelta
+    {
+        int32_t version{-1};
+        NodeStats stat;
+        Coordination::ACLs acls;
+        String data;
+    };
+
+    struct UpdateNodeStatDelta
+    {
+        template <is_any_of<KeeperMemNode, KeeperRocksNode> Node>
+        explicit UpdateNodeStatDelta(const Node & node)
+            : old_stats(node.stats)
+            , new_stats(node.stats)
+        {}
+
+        NodeStats old_stats;
+        NodeStats new_stats;
+        int32_t version{-1};
+    };
+
+    struct UpdateNodeDataDelta
+    {
+
+        std::string old_data;
+        std::string new_data;
+        int32_t version{-1};
+    };
+
+    struct SetACLDelta
+    {
+        Coordination::ACLs old_acls;
+        Coordination::ACLs new_acls;
+        int32_t version{-1};
+    };
+
+    struct ErrorDelta
+    {
+        Coordination::Error error;
+    };
+
+    struct FailedMultiDelta
+    {
+        std::vector<Coordination::Error> error_codes;
+        Coordination::Error global_error{Coordination::Error::ZOK};
+    };
+
+    // Denotes end of a subrequest in multi request
+    struct SubDeltaEnd
+    {
+    };
+
+    struct AddAuthDelta
+    {
+        int64_t session_id;
+        std::shared_ptr<AuthID> auth_id;
+    };
+
+    struct CloseSessionDelta
+    {
+        int64_t session_id;
+    };
+
+    using Operation = std::variant<
+        CreateNodeDelta,
+        RemoveNodeDelta,
+        UpdateNodeStatDelta,
+        UpdateNodeDataDelta,
+        SetACLDelta,
+        AddAuthDelta,
+        ErrorDelta,
+        SubDeltaEnd,
+        FailedMultiDelta,
+        CloseSessionDelta>;
+
+    struct Delta
+    {
+        Delta(String path_, int64_t zxid_, Operation operation_) : path(std::move(path_)), zxid(zxid_), operation(std::move(operation_)) { }
+
+        Delta(int64_t zxid_, Coordination::Error error) : Delta("", zxid_, ErrorDelta{error}) { }
+
+        Delta(int64_t zxid_, Operation subdelta) : Delta("", zxid_, subdelta) { }
+
+        String path;
+        int64_t zxid;
+        Operation operation;
+    };
+
+    using DeltaIterator = std::list<KeeperStorageBase::Delta>::const_iterator;
+    struct DeltaRange
+    {
+        DeltaIterator begin_it;
+        DeltaIterator end_it;
+
+        auto begin() const
+        {
+            return begin_it;
+        }
+
+        auto end() const
+        {
+            return end_it;
+        }
+
+        bool empty() const
+        {
+            return begin_it == end_it;
+        }
+
+        const auto & front() const
+        {
+            return *begin_it;
+        }
+    };
+
+    struct Stats
+    {
+        std::atomic<uint64_t> nodes_count = 0;
+        std::atomic<uint64_t> approximate_data_size = 0;
+        std::atomic<uint64_t> total_watches_count = 0;
+        std::atomic<uint64_t> watched_paths_count = 0;
+        std::atomic<uint64_t> sessions_with_watches_count = 0;
+        std::atomic<uint64_t> session_with_ephemeral_nodes_count = 0;
+        std::atomic<uint64_t> total_emphemeral_nodes_count = 0;
+        std::atomic<int64_t> last_zxid = 0;
+    };
+
+    Stats stats;
 
     static bool checkDigest(const Digest & first, const Digest & second);
-
 };
 
+
 /// Keeper state machine almost equal to the ZooKeeper's state machine.
 /// Implements all logic of operations, data changes, sessions allocation.
 /// In-memory and not thread safe.
@@ -472,160 +526,73 @@ public:
 
     int64_t session_id_counter{1};
 
-    SessionAndAuth session_and_auth;
+    mutable SharedMutex auth_mutex;
+    SessionAndAuth committed_session_and_auth;
 
+    mutable SharedMutex storage_mutex;
     /// Main hashtable with nodes. Contain all information about data.
     /// All other structures expect session_and_timeout can be restored from
     /// container.
     Container container;
 
-    // Applying ZooKeeper request to storage consists of two steps:
-    //  - preprocessing which, instead of applying the changes directly to storage,
-    //    generates deltas with those changes, denoted with the request ZXID
-    //  - processing which applies deltas with the correct ZXID to the storage
-    //
-    // Delta objects allow us two things:
-    //  - fetch the latest, uncommitted state of an object by getting the committed
-    //    state of that same object from the storage and applying the deltas
-    //    in the same order as they are defined
-    //  - quickly commit the changes to the storage
-    struct CreateNodeDelta
-    {
-        Coordination::Stat stat;
-        Coordination::ACLs acls;
-        String data;
-    };
-
-    struct RemoveNodeDelta
-    {
-        int32_t version{-1};
-        int64_t ephemeral_owner{0};
-    };
-
-    struct UpdateNodeDelta
-    {
-        std::function<void(Node &)> update_fn;
-        int32_t version{-1};
-    };
-
-    struct SetACLDelta
-    {
-        Coordination::ACLs acls;
-        int32_t version{-1};
-    };
-
-    struct ErrorDelta
-    {
-        Coordination::Error error;
-    };
-
-    struct FailedMultiDelta
-    {
-        std::vector<Coordination::Error> error_codes;
-        Coordination::Error global_error{Coordination::Error::ZOK};
-    };
-
-    // Denotes end of a subrequest in multi request
-    struct SubDeltaEnd
-    {
-    };
-
-    struct AddAuthDelta
-    {
-        int64_t session_id;
-        AuthID auth_id;
-    };
-
-    struct CloseSessionDelta
-    {
-        int64_t session_id;
-    };
-
-    using Operation = std::
-        variant<CreateNodeDelta, RemoveNodeDelta, UpdateNodeDelta, SetACLDelta, AddAuthDelta, ErrorDelta, SubDeltaEnd, FailedMultiDelta, CloseSessionDelta>;
-
-    struct Delta
-    {
-        Delta(String path_, int64_t zxid_, Operation operation_) : path(std::move(path_)), zxid(zxid_), operation(std::move(operation_)) { }
-
-        Delta(int64_t zxid_, Coordination::Error error) : Delta("", zxid_, ErrorDelta{error}) { }
-
-        Delta(int64_t zxid_, Operation subdelta) : Delta("", zxid_, subdelta) { }
-
-        String path;
-        int64_t zxid;
-        Operation operation;
-    };
-
     struct UncommittedState
     {
         explicit UncommittedState(KeeperStorage & storage_) : storage(storage_) { }
 
-        void addDelta(Delta new_delta);
+        void addDeltas(std::list<Delta> new_deltas);
-        void addDeltas(std::vector<Delta> new_deltas);
+        void cleanup(int64_t commit_zxid);
-        void commit(int64_t commit_zxid);
         void rollback(int64_t rollback_zxid);
+        void rollback(std::list<Delta> rollback_deltas);
 
-        std::shared_ptr<Node> getNode(StringRef path) const;
+        std::shared_ptr<Node> getNode(StringRef path, bool should_lock_storage = true) const;
         const Node * getActualNodeView(StringRef path, const Node & storage_node) const;
+
         Coordination::ACLs getACLs(StringRef path) const;
 
+        void applyDeltas(const std::list<Delta> & new_deltas);
         void applyDelta(const Delta & delta);
+        void rollbackDelta(const Delta & delta);
 
         bool hasACL(int64_t session_id, bool is_local, std::function<bool(const AuthID &)> predicate) const;
 
         void forEachAuthInSession(int64_t session_id, std::function<void(const AuthID &)> func) const;
 
-        std::shared_ptr<Node> tryGetNodeFromStorage(StringRef path) const;
+        std::shared_ptr<Node> tryGetNodeFromStorage(StringRef path, bool should_lock_storage = true) const;
 
-        std::unordered_map<int64_t, std::list<const AuthID *>> session_and_auth;
         std::unordered_set<int64_t> closed_sessions;
 
+        using ZxidToNodes = std::map<int64_t, std::unordered_set<std::string_view>>;
         struct UncommittedNode
         {
             std::shared_ptr<Node> node{nullptr};
-            Coordination::ACLs acls{};
+            std::optional<Coordination::ACLs> acls{};
-            int64_t zxid{0};
+            std::unordered_set<uint64_t> applied_zxids{};
-        };
 
-        struct Hash
+            void materializeACL(const ACLMap & current_acl_map);
-        {
-            auto operator()(const std::string_view view) const
-            {
-                SipHash hash;
-                hash.update(view);
-                return hash.get64();
-            }
-
-            using is_transparent = void; // required to make find() work with different type than key_type
-        };
-
-        struct Equal
-        {
-            auto operator()(const std::string_view a,
-                            const std::string_view b) const
-            {
-                return a == b;
-            }
-
-            using is_transparent = void; // required to make find() work with different type than key_type
         };
 
         struct PathCmp
         {
-            using is_transparent = std::true_type;
-
             auto operator()(const std::string_view a,
                             const std::string_view b) const
             {
-                return a.size() < b.size() || (a.size() == b.size() && a < b);
+                size_t level_a = std::count(a.begin(), a.end(), '/');
+                size_t level_b = std::count(b.begin(), b.end(), '/');
+                return level_a < level_b || (level_a == level_b && a < b);
             }
+
+            using is_transparent = void; // required to make find() work with different type than key_type
         };
 
-        mutable std::map<std::string, UncommittedNode, PathCmp> nodes;
+        Ephemerals ephemerals;
-        std::unordered_map<std::string, std::list<const Delta *>, Hash, Equal> deltas_for_path;
 
-        std::list<Delta> deltas;
+        std::unordered_map<int64_t, std::list<std::pair<int64_t, std::shared_ptr<AuthID>>>> session_and_auth;
+
+        mutable std::map<std::string, UncommittedNode, PathCmp> nodes;
+        mutable ZxidToNodes zxid_to_nodes;
+
+        mutable std::mutex deltas_mutex;
+        std::list<Delta> deltas TSA_GUARDED_BY(deltas_mutex);
         KeeperStorage<Container> & storage;
     };
 
@@ -635,7 +602,7 @@ public:
     // with zxid > last_zxid
     void applyUncommittedState(KeeperStorage & other, int64_t last_log_idx);
 
-    Coordination::Error commit(int64_t zxid);
+    Coordination::Error commit(DeltaRange deltas);
 
     // Create node in the storage
     // Returns false if it failed to create the node, true otherwise
@@ -653,12 +620,11 @@ public:
 
     bool checkACL(StringRef path, int32_t permissions, int64_t session_id, bool is_local);
 
-    void unregisterEphemeralPath(int64_t session_id, const std::string & path);
+    std::mutex ephemeral_mutex;
-
     /// Mapping session_id -> set of ephemeral nodes paths
-    Ephemerals ephemerals;
+    Ephemerals committed_ephemerals;
-    /// Mapping session_id -> set of watched nodes paths
+    size_t committed_ephemeral_nodes{0};
-    SessionAndWatcher sessions_and_watchers;
+
     /// Expiration queue for session, allows to get dead sessions at some point of time
     SessionExpiryQueue session_expiry_queue;
     /// All active sessions with timeout
@@ -667,8 +633,10 @@ public:
     /// ACLMap for more compact ACLs storage inside nodes.
     ACLMap acl_map;
 
+    mutable std::mutex transaction_mutex;
+
     /// Global id of all requests applied to storage
-    int64_t zxid{0};
+    int64_t zxid TSA_GUARDED_BY(transaction_mutex) = 0;
 
     // older Keeper node (pre V5 snapshots) can create snapshots and receive logs from newer Keeper nodes
     // this can lead to some inconsistencies, e.g. from snapshot it will use log_idx as zxid
@@ -685,11 +653,16 @@ public:
         int64_t log_idx = 0;
     };
 
-    std::deque<TransactionInfo> uncommitted_transactions;
+    std::list<TransactionInfo> uncommitted_transactions TSA_GUARDED_BY(transaction_mutex);
 
-    uint64_t nodes_digest{0};
+    uint64_t nodes_digest = 0;
 
-    bool finalized{false};
+    std::atomic<bool> finalized{false};
+
+
+    /// Mapping session_id -> set of watched nodes paths
+    SessionAndWatcher sessions_and_watchers;
+    size_t total_watches_count = 0;
 
     /// Currently active watches (node_path -> subscribed sessions)
     Watches watches;
@@ -698,45 +671,30 @@ public:
     void clearDeadWatches(int64_t session_id);
 
     /// Get current committed zxid
-    int64_t getZXID() const { return zxid; }
+    int64_t getZXID() const;
 
-    int64_t getNextZXID() const
+    int64_t getNextZXID() const;
-    {
+    int64_t getNextZXIDLocked() const TSA_REQUIRES(transaction_mutex);
-        if (uncommitted_transactions.empty())
-            return zxid + 1;
 
-        return uncommitted_transactions.back().zxid + 1;
+    Digest getNodesDigest(bool committed, bool lock_transaction_mutex) const;
-    }
-
-    Digest getNodesDigest(bool committed) const;
 
     KeeperContextPtr keeper_context;
 
     const String superdigest;
 
-    bool initialized{false};
+    std::atomic<bool> initialized{false};
 
     KeeperStorage(int64_t tick_time_ms, const String & superdigest_, const KeeperContextPtr & keeper_context_, bool initialize_system_nodes = true);
 
-    void initializeSystemNodes();
+    void initializeSystemNodes() TSA_NO_THREAD_SAFETY_ANALYSIS;
 
     /// Allocate new session id with the specified timeouts
-    int64_t getSessionID(int64_t session_timeout_ms)
+    int64_t getSessionID(int64_t session_timeout_ms);
-    {
-        auto result = session_id_counter++;
-        session_and_timeout.emplace(result, session_timeout_ms);
-        session_expiry_queue.addNewSessionOrUpdate(result, session_timeout_ms);
-        return result;
-    }
 
     /// Add session id. Used when restoring KeeperStorage from snapshot.
-    void addSessionID(int64_t session_id, int64_t session_timeout_ms)
+    void addSessionID(int64_t session_id, int64_t session_timeout_ms) TSA_NO_THREAD_SAFETY_ANALYSIS;
-    {
-        session_and_timeout.emplace(session_id, session_timeout_ms);
-        session_expiry_queue.addNewSessionOrUpdate(session_id, session_timeout_ms);
-    }
 
-    UInt64 calculateNodesDigest(UInt64 current_digest, const std::vector<Delta> & new_deltas) const;
+    UInt64 calculateNodesDigest(UInt64 current_digest, const std::list<Delta> & new_deltas) const;
 
     /// Process user request and return response.
     /// check_acl = false only when converting data from ZooKeeper.
@@ -763,42 +721,39 @@ public:
     /// Set of methods for creating snapshots
 
     /// Turn on snapshot mode, so data inside Container is not deleted, but replaced with new version.
-    void enableSnapshotMode(size_t up_to_version)
+    void enableSnapshotMode(size_t up_to_version);
-    {
-        container.enableSnapshotMode(up_to_version);
-    }
 
     /// Turn off snapshot mode.
-    void disableSnapshotMode()
+    void disableSnapshotMode();
-    {
-        container.disableSnapshotMode();
-    }
 
-    Container::const_iterator getSnapshotIteratorBegin() const { return container.begin(); }
+    Container::const_iterator getSnapshotIteratorBegin() const;
 
     /// Clear outdated data from internal container.
-    void clearGarbageAfterSnapshot() { container.clearOutdatedNodes(); }
+    void clearGarbageAfterSnapshot();
 
     /// Get all active sessions
-    const SessionAndTimeout & getActiveSessions() const { return session_and_timeout; }
+    SessionAndTimeout getActiveSessions() const;
 
     /// Get all dead sessions
-    std::vector<int64_t> getDeadSessions() const { return session_expiry_queue.getExpiredSessions(); }
+    std::vector<int64_t> getDeadSessions() const;
+
+    void updateStats();
+    const Stats & getStorageStats() const;
 
     /// Introspection functions mostly used in 4-letter commands
-    uint64_t getNodesCount() const { return container.size(); }
+    uint64_t getNodesCount() const;
 
-    uint64_t getApproximateDataSize() const { return container.getApproximateDataSize(); }
+    uint64_t getApproximateDataSize() const;
 
-    uint64_t getArenaDataSize() const { return container.keyArenaSize(); }
+    uint64_t getArenaDataSize() const;
 
     uint64_t getTotalWatchesCount() const;
 
-    uint64_t getWatchedPathsCount() const { return watches.size() + list_watches.size(); }
+    uint64_t getWatchedPathsCount() const;
 
     uint64_t getSessionsWithWatchesCount() const;
 
-    uint64_t getSessionWithEphemeralNodesCount() const { return ephemerals.size(); }
+    uint64_t getSessionWithEphemeralNodesCount() const;
     uint64_t getTotalEphemeralNodesCount() const;
 
     void dumpWatches(WriteBufferFromOwnString & buf) const;

src/Coordination/RocksDBContainer.h

@@ -155,11 +155,11 @@ public:
                 ReadBufferFromOwnString buffer(iter->value().ToStringView());
                 typename Node::Meta & meta = new_pair->value;
                 readPODBinary(meta, buffer);
-                readVarUInt(new_pair->value.data_size, buffer);
+                readVarUInt(new_pair->value.stats.data_size, buffer);
-                if (new_pair->value.data_size)
+                if (new_pair->value.stats.data_size)
                 {
-                    new_pair->value.data = std::unique_ptr<char[]>(new char[new_pair->value.data_size]);
+                    new_pair->value.data = std::unique_ptr<char[]>(new char[new_pair->value.stats.data_size]);
-                    buffer.readStrict(new_pair->value.data.get(), new_pair->value.data_size);
+                    buffer.readStrict(new_pair->value.data.get(), new_pair->value.stats.data_size);
                 }
                 pair = new_pair;
             }
@@ -211,7 +211,7 @@ public:
         }
     }
 
-    std::vector<std::pair<std::string, Node>> getChildren(const std::string & key_)
+    std::vector<std::pair<std::string, Node>> getChildren(const std::string & key_, bool read_data = false)
     {
         rocksdb::ReadOptions read_options;
         read_options.total_order_seek = true;
@@ -232,6 +232,15 @@ public:
             typename Node::Meta & meta = node;
             /// We do not read data here
             readPODBinary(meta, buffer);
+            if (read_data)
+            {
+                readVarUInt(meta.stats.data_size, buffer);
+                if (meta.stats.data_size)
+                {
+                    node.data = std::unique_ptr<char[]>(new char[meta.stats.data_size]);
+                    buffer.readStrict(node.data.get(), meta.stats.data_size);
+                }
+            }
             std::string real_key(iter->key().data() + len, iter->key().size() - len);
             // std::cout << "real key: " << real_key << std::endl;
             result.emplace_back(std::move(real_key), std::move(node));
@@ -268,11 +277,11 @@ public:
         typename Node::Meta & meta = kv->value;
         readPODBinary(meta, buffer);
         /// TODO: Sometimes we don't need to load data.
-        readVarUInt(kv->value.data_size, buffer);
+        readVarUInt(kv->value.stats.data_size, buffer);
-        if (kv->value.data_size)
+        if (kv->value.stats.data_size)
         {
-            kv->value.data = std::unique_ptr<char[]>(new char[kv->value.data_size]);
+            kv->value.data = std::unique_ptr<char[]>(new char[kv->value.stats.data_size]);
-            buffer.readStrict(kv->value.data.get(), kv->value.data_size);
+            buffer.readStrict(kv->value.data.get(), kv->value.stats.data_size);
         }
         return const_iterator(kv);
     }
@@ -281,7 +290,7 @@ public:
     {
         auto it = find(key);
         chassert(it != end());
-        return MockNode(it->value.numChildren(), it->value.getData());
+        return MockNode(it->value.stats.numChildren(), it->value.getData());
     }
 
     const_iterator updateValue(StringRef key_, ValueUpdater updater)

src/Coordination/ZooKeeperDataReader.cpp

@@ -93,7 +93,7 @@ void deserializeACLMap(Storage & storage, ReadBuffer & in)
 }
 
 template<typename Storage>
-int64_t deserializeStorageData(Storage & storage, ReadBuffer & in, LoggerPtr log)
+int64_t deserializeStorageData(Storage & storage, ReadBuffer & in, LoggerPtr log) TSA_NO_THREAD_SAFETY_ANALYSIS
 {
     int64_t max_zxid = 0;
     std::string path;
@@ -108,33 +108,33 @@ int64_t deserializeStorageData(Storage & storage, ReadBuffer & in, LoggerPtr log
         Coordination::read(node.acl_id, in);
 
         /// Deserialize stat
-        Coordination::read(node.czxid, in);
+        Coordination::read(node.stats.czxid, in);
-        Coordination::read(node.mzxid, in);
+        Coordination::read(node.stats.mzxid, in);
         /// For some reason ZXID specified in filename can be smaller
         /// then actual zxid from nodes. In this case we will use zxid from nodes.
-        max_zxid = std::max(max_zxid, node.mzxid);
+        max_zxid = std::max(max_zxid, node.stats.mzxid);
 
         int64_t ctime;
         Coordination::read(ctime, in);
-        node.setCtime(ctime);
+        node.stats.setCtime(ctime);
-        Coordination::read(node.mtime, in);
+        Coordination::read(node.stats.mtime, in);
-        Coordination::read(node.version, in);
+        Coordination::read(node.stats.version, in);
-        Coordination::read(node.cversion, in);
+        Coordination::read(node.stats.cversion, in);
-        Coordination::read(node.aversion, in);
+        Coordination::read(node.stats.aversion, in);
         int64_t ephemeral_owner;
         Coordination::read(ephemeral_owner, in);
         if (ephemeral_owner != 0)
-            node.setEphemeralOwner(ephemeral_owner);
+            node.stats.setEphemeralOwner(ephemeral_owner);
-        Coordination::read(node.pzxid, in);
+        Coordination::read(node.stats.pzxid, in);
         if (!path.empty())
         {
             if (ephemeral_owner == 0)
-                node.setSeqNum(node.cversion);
+                node.stats.setSeqNum(node.stats.cversion);
 
             storage.container.insertOrReplace(path, node);
 
             if (ephemeral_owner != 0)
-                storage.ephemerals[ephemeral_owner].insert(path);
+                storage.committed_ephemerals[ephemeral_owner].insert(path);
 
             storage.acl_map.addUsage(node.acl_id);
         }
@@ -149,7 +149,13 @@ int64_t deserializeStorageData(Storage & storage, ReadBuffer & in, LoggerPtr log
         if (itr.key != "/")
         {
             auto parent_path = parentNodePath(itr.key);
-            storage.container.updateValue(parent_path, [my_path = itr.key] (typename Storage::Node & value) { value.addChild(getBaseNodeName(my_path)); value.increaseNumChildren(); });
+            storage.container.updateValue(
+                parent_path,
+                [my_path = itr.key](typename Storage::Node & value)
+                {
+                    value.addChild(getBaseNodeName(my_path));
+                    value.stats.increaseNumChildren();
+                });
         }
     }
 
@@ -157,7 +163,7 @@ int64_t deserializeStorageData(Storage & storage, ReadBuffer & in, LoggerPtr log
 }
 
 template<typename Storage>
-void deserializeKeeperStorageFromSnapshot(Storage & storage, const std::string & snapshot_path, LoggerPtr log)
+void deserializeKeeperStorageFromSnapshot(Storage & storage, const std::string & snapshot_path, LoggerPtr log) TSA_NO_THREAD_SAFETY_ANALYSIS
 {
     LOG_INFO(log, "Deserializing storage snapshot {}", snapshot_path);
     int64_t zxid = getZxidFromName(snapshot_path);
@@ -487,7 +493,7 @@ bool hasErrorsInMultiRequest(Coordination::ZooKeeperRequestPtr request)
 }
 
 template<typename Storage>
-bool deserializeTxn(Storage & storage, ReadBuffer & in, LoggerPtr /*log*/)
+bool deserializeTxn(Storage & storage, ReadBuffer & in, LoggerPtr /*log*/) TSA_NO_THREAD_SAFETY_ANALYSIS
 {
     int64_t checksum;
     Coordination::read(checksum, in);
@@ -568,7 +574,7 @@ void deserializeLogAndApplyToStorage(Storage & storage, const std::string & log_
 }
 
 template<typename Storage>
-void deserializeLogsAndApplyToStorage(Storage & storage, const std::string & path, LoggerPtr log)
+void deserializeLogsAndApplyToStorage(Storage & storage, const std::string & path, LoggerPtr log) TSA_NO_THREAD_SAFETY_ANALYSIS
 {
     std::map<int64_t, std::string> existing_logs;
     for (const auto & p : fs::directory_iterator(path))

src/Coordination/tests/gtest_coordination.cpp

@@ -1,6 +1,7 @@
 #include <chrono>
 #include <gtest/gtest.h>
 
+#include "base/defines.h"
 #include "config.h"
 
 #if USE_NURAFT
@@ -1540,7 +1541,7 @@ void addNode(Storage & storage, const std::string & path, const std::string & da
     using Node = typename Storage::Node;
     Node node{};
     node.setData(data);
-    node.setEphemeralOwner(ephemeral_owner);
+    node.stats.setEphemeralOwner(ephemeral_owner);
     storage.container.insertOrReplace(path, node);
     auto child_it = storage.container.find(path);
     auto child_path = DB::getBaseNodeName(child_it->key);
@@ -1549,7 +1550,7 @@ void addNode(Storage & storage, const std::string & path, const std::string & da
         [&](auto & parent)
         {
             parent.addChild(child_path);
-            parent.increaseNumChildren();
+            parent.stats.increaseNumChildren();
         });
 }
 
@@ -1570,9 +1571,9 @@ TYPED_TEST(CoordinationTest, TestStorageSnapshotSimple)
     addNode(storage, "/hello1", "world", 1);
     addNode(storage, "/hello2", "somedata", 3);
     storage.session_id_counter = 5;
-    storage.zxid = 2;
+    TSA_SUPPRESS_WARNING_FOR_WRITE(storage.zxid) = 2;
-    storage.ephemerals[3] = {"/hello2"};
+    storage.committed_ephemerals[3] = {"/hello2"};
-    storage.ephemerals[1] = {"/hello1"};
+    storage.committed_ephemerals[1] = {"/hello1"};
     storage.getSessionID(130);
     storage.getSessionID(130);
 
@@ -1601,10 +1602,10 @@ TYPED_TEST(CoordinationTest, TestStorageSnapshotSimple)
     EXPECT_EQ(restored_storage->container.getValue("/hello1").getData(), "world");
     EXPECT_EQ(restored_storage->container.getValue("/hello2").getData(), "somedata");
     EXPECT_EQ(restored_storage->session_id_counter, 7);
-    EXPECT_EQ(restored_storage->zxid, 2);
+    EXPECT_EQ(restored_storage->getZXID(), 2);
-    EXPECT_EQ(restored_storage->ephemerals.size(), 2);
+    EXPECT_EQ(restored_storage->committed_ephemerals.size(), 2);
-    EXPECT_EQ(restored_storage->ephemerals[3].size(), 1);
+    EXPECT_EQ(restored_storage->committed_ephemerals[3].size(), 1);
-    EXPECT_EQ(restored_storage->ephemerals[1].size(), 1);
+    EXPECT_EQ(restored_storage->committed_ephemerals[1].size(), 1);
     EXPECT_EQ(restored_storage->session_and_timeout.size(), 2);
 }
 
@@ -2027,7 +2028,7 @@ TYPED_TEST(CoordinationTest, TestEphemeralNodeRemove)
     state_machine->commit(1, entry_c->get_buf());
     const auto & storage = state_machine->getStorageUnsafe();
 
-    EXPECT_EQ(storage.ephemerals.size(), 1);
+    EXPECT_EQ(storage.committed_ephemerals.size(), 1);
     std::shared_ptr<ZooKeeperRemoveRequest> request_d = std::make_shared<ZooKeeperRemoveRequest>();
     request_d->path = "/hello";
     /// Delete from other session
@@ -2035,7 +2036,7 @@ TYPED_TEST(CoordinationTest, TestEphemeralNodeRemove)
     state_machine->pre_commit(2, entry_d->get_buf());
     state_machine->commit(2, entry_d->get_buf());
 
-    EXPECT_EQ(storage.ephemerals.size(), 0);
+    EXPECT_EQ(storage.committed_ephemerals.size(), 0);
 }
 
 
@@ -2590,9 +2591,9 @@ TYPED_TEST(CoordinationTest, TestStorageSnapshotDifferentCompressions)
     addNode(storage, "/hello1", "world", 1);
     addNode(storage, "/hello2", "somedata", 3);
     storage.session_id_counter = 5;
-    storage.zxid = 2;
+    TSA_SUPPRESS_WARNING_FOR_WRITE(storage.zxid) = 2;
-    storage.ephemerals[3] = {"/hello2"};
+    storage.committed_ephemerals[3] = {"/hello2"};
-    storage.ephemerals[1] = {"/hello1"};
+    storage.committed_ephemerals[1] = {"/hello1"};
     storage.getSessionID(130);
     storage.getSessionID(130);
 
@@ -2617,10 +2618,10 @@ TYPED_TEST(CoordinationTest, TestStorageSnapshotDifferentCompressions)
     EXPECT_EQ(restored_storage->container.getValue("/hello1").getData(), "world");
     EXPECT_EQ(restored_storage->container.getValue("/hello2").getData(), "somedata");
     EXPECT_EQ(restored_storage->session_id_counter, 7);
-    EXPECT_EQ(restored_storage->zxid, 2);
+    EXPECT_EQ(restored_storage->getZXID(), 2);
-    EXPECT_EQ(restored_storage->ephemerals.size(), 2);
+    EXPECT_EQ(restored_storage->committed_ephemerals.size(), 2);
-    EXPECT_EQ(restored_storage->ephemerals[3].size(), 1);
+    EXPECT_EQ(restored_storage->committed_ephemerals[3].size(), 1);
-    EXPECT_EQ(restored_storage->ephemerals[1].size(), 1);
+    EXPECT_EQ(restored_storage->committed_ephemerals[1].size(), 1);
     EXPECT_EQ(restored_storage->session_and_timeout.size(), 2);
 }
 
@@ -2805,13 +2806,13 @@ TYPED_TEST(CoordinationTest, TestStorageSnapshotEqual)
 
         storage.session_id_counter = 5;
 
-        storage.ephemerals[3] = {"/hello"};
+        storage.committed_ephemerals[3] = {"/hello"};
-        storage.ephemerals[1] = {"/hello/somepath"};
+        storage.committed_ephemerals[1] = {"/hello/somepath"};
 
         for (size_t j = 0; j < 3333; ++j)
             storage.getSessionID(130 * j);
 
-        DB::KeeperStorageSnapshot<Storage> snapshot(&storage, storage.zxid);
+        DB::KeeperStorageSnapshot<Storage> snapshot(&storage, storage.getZXID());
 
         auto buf = manager.serializeSnapshotToBuffer(snapshot);
 
@@ -3315,7 +3316,7 @@ TYPED_TEST(CoordinationTest, TestCheckNotExistsRequest)
     create_path("/test_node");
     auto node_it = storage.container.find("/test_node");
     ASSERT_NE(node_it, storage.container.end());
-    auto node_version = node_it->value.version;
+    auto node_version = node_it->value.stats.version;
 
     {
         SCOPED_TRACE("CheckNotExists returns ZNODEEXISTS");
@@ -3566,12 +3567,12 @@ TYPED_TEST(CoordinationTest, TestRemoveRecursiveRequest)
     {
         SCOPED_TRACE("Recursive Remove Ephemeral");
         create("/T7", zkutil::CreateMode::Ephemeral);
-        ASSERT_EQ(storage.ephemerals.size(), 1);
+        ASSERT_EQ(storage.committed_ephemerals.size(), 1);
 
         auto responses = remove_recursive("/T7", 100);
         ASSERT_EQ(responses.size(), 1);
         ASSERT_EQ(responses[0].response->error, Coordination::Error::ZOK);
-        ASSERT_EQ(storage.ephemerals.size(), 0);
+        ASSERT_EQ(storage.committed_ephemerals.size(), 0);
         ASSERT_FALSE(exists("/T7"));
     }
 
@@ -3581,12 +3582,12 @@ TYPED_TEST(CoordinationTest, TestRemoveRecursiveRequest)
         create("/T8/A", zkutil::CreateMode::Persistent);
         create("/T8/B", zkutil::CreateMode::Ephemeral);
         create("/T8/A/C", zkutil::CreateMode::Ephemeral);
-        ASSERT_EQ(storage.ephemerals.size(), 1);
+        ASSERT_EQ(storage.committed_ephemerals.size(), 1);
 
         auto responses = remove_recursive("/T8", 4);
         ASSERT_EQ(responses.size(), 1);
         ASSERT_EQ(responses[0].response->error, Coordination::Error::ZOK);
-        ASSERT_EQ(storage.ephemerals.size(), 0);
+        ASSERT_EQ(storage.committed_ephemerals.size(), 0);
         ASSERT_FALSE(exists("/T8"));
         ASSERT_FALSE(exists("/T8/A"));
         ASSERT_FALSE(exists("/T8/B"));
@@ -3738,6 +3739,72 @@ TYPED_TEST(CoordinationTest, TestRemoveRecursiveInMultiRequest)
         ASSERT_FALSE(exists("/A/B"));
         ASSERT_FALSE(exists("/A/B/D"));
     }
+
+    {
+        SCOPED_TRACE("Recursive Remove For Subtree With Updated Node");
+        int create_zxid = ++zxid;
+        auto ops = prepare_create_tree();
+
+        /// First create nodes
+        const auto create_request = std::make_shared<ZooKeeperMultiRequest>(ops, ACLs{});
+        storage.preprocessRequest(create_request, 1, 0, create_zxid);
+        auto create_responses = storage.processRequest(create_request, 1, create_zxid);
+        ASSERT_EQ(create_responses.size(), 1);
+        ASSERT_TRUE(is_multi_ok(create_responses[0].response));
+
+        /// Small limit
+        int remove_zxid = ++zxid;
+        ops = {
+            zkutil::makeSetRequest("/A/B", "", -1),
+            zkutil::makeRemoveRecursiveRequest("/A", 3),
+        };
+        auto remove_request = std::make_shared<ZooKeeperMultiRequest>(ops, ACLs{});
+        storage.preprocessRequest(remove_request, 1, 0, remove_zxid);
+        auto remove_responses = storage.processRequest(remove_request, 1, remove_zxid);
+
+        ASSERT_EQ(remove_responses.size(), 1);
+        ASSERT_FALSE(is_multi_ok(remove_responses[0].response));
+
+        /// Big limit
+        remove_zxid = ++zxid;
+        ops[1] = zkutil::makeRemoveRecursiveRequest("/A", 4);
+        remove_request = std::make_shared<ZooKeeperMultiRequest>(ops, ACLs{});
+        storage.preprocessRequest(remove_request, 1, 0, remove_zxid);
+        remove_responses = storage.processRequest(remove_request, 1, remove_zxid);
+
+        ASSERT_EQ(remove_responses.size(), 1);
+        ASSERT_TRUE(is_multi_ok(remove_responses[0].response));
+        ASSERT_FALSE(exists("/A"));
+        ASSERT_FALSE(exists("/A/C"));
+        ASSERT_FALSE(exists("/A/B"));
+        ASSERT_FALSE(exists("/A/B/D"));
+    }
+
+    {
+        SCOPED_TRACE("[BUG] Recursive Remove Level Sorting");
+        int new_zxid = ++zxid;
+
+        Coordination::Requests ops = {
+            zkutil::makeCreateRequest("/a", "", zkutil::CreateMode::Persistent),
+            zkutil::makeCreateRequest("/a/bbbbbb", "", zkutil::CreateMode::Persistent),
+            zkutil::makeCreateRequest("/A", "", zkutil::CreateMode::Persistent),
+            zkutil::makeCreateRequest("/A/B", "", zkutil::CreateMode::Persistent),
+            zkutil::makeCreateRequest("/A/CCCCCCCCCCCC", "", zkutil::CreateMode::Persistent),
+            zkutil::makeRemoveRecursiveRequest("/A", 3),
+        };
+        auto remove_request = std::make_shared<ZooKeeperMultiRequest>(ops, ACLs{});
+        storage.preprocessRequest(remove_request, 1, 0, new_zxid);
+        auto remove_responses = storage.processRequest(remove_request, 1, new_zxid);
+
+        ASSERT_EQ(remove_responses.size(), 1);
+        ASSERT_TRUE(is_multi_ok(remove_responses[0].response));
+        ASSERT_TRUE(exists("/a"));
+        ASSERT_TRUE(exists("/a/bbbbbb"));
+        ASSERT_FALSE(exists("/A"));
+        ASSERT_FALSE(exists("/A/B"));
+        ASSERT_FALSE(exists("/A/CCCCCCCCCCCC"));
+    }
+
 }
 
 TYPED_TEST(CoordinationTest, TestRemoveRecursiveWatches)
@@ -3823,14 +3890,26 @@ TYPED_TEST(CoordinationTest, TestRemoveRecursiveWatches)
     auto responses = storage.processRequest(remove_request, 1, new_zxid);
 
     ASSERT_EQ(responses.size(), 7);
+    /// request response is last
+    ASSERT_EQ(dynamic_cast<Coordination::ZooKeeperWatchResponse *>(responses.back().response.get()), nullptr);
 
-    for (size_t i = 0; i < 7; ++i)
+    std::unordered_map<std::string, std::vector<Coordination::Event>> expected_watch_responses
+    {
+        {"/A/B/D", {Coordination::Event::DELETED}},
+        {"/A/B", {Coordination::Event::CHILD, Coordination::Event::DELETED}},
+        {"/A/C", {Coordination::Event::DELETED}},
+        {"/A", {Coordination::Event::CHILD, Coordination::Event::DELETED}},
+    };
+
+    std::unordered_map<std::string, std::vector<Coordination::Event>> actual_watch_responses;
+    for (size_t i = 0; i < 6; ++i)
     {
         ASSERT_EQ(responses[i].response->error, Coordination::Error::ZOK);
 
-        if (const auto * watch_response = dynamic_cast<Coordination::ZooKeeperWatchResponse *>(responses[i].response.get()))
+        const auto & watch_response = dynamic_cast<Coordination::ZooKeeperWatchResponse &>(*responses[i].response);
-            ASSERT_EQ(watch_response->type, Coordination::Event::DELETED);
+        actual_watch_responses[watch_response.path].push_back(static_cast<Coordination::Event>(watch_response.type));
     }
+    ASSERT_EQ(expected_watch_responses, actual_watch_responses);
 
     ASSERT_EQ(storage.watches.size(), 0);
     ASSERT_EQ(storage.list_watches.size(), 0);

src/Interpreters/HashJoin/HashJoin.cpp

@@ -338,11 +338,8 @@ size_t HashJoin::getTotalRowCount() const
     return res;
 }
 
-size_t HashJoin::getTotalByteCount() const
+void HashJoin::doDebugAsserts() const
 {
-    if (!data)
-        return 0;
-
 #ifndef NDEBUG
     size_t debug_blocks_allocated_size = 0;
     for (const auto & block : data->blocks)
@@ -360,6 +357,14 @@ size_t HashJoin::getTotalByteCount() const
         throw Exception(ErrorCodes::LOGICAL_ERROR, "data->blocks_nullmaps_allocated_size != debug_blocks_nullmaps_allocated_size ({} != {})",
                         data->blocks_nullmaps_allocated_size, debug_blocks_nullmaps_allocated_size);
 #endif
+}
+
+size_t HashJoin::getTotalByteCount() const
+{
+    if (!data)
+        return 0;
+
+    doDebugAsserts();
 
     size_t res = 0;
 
@@ -544,9 +549,11 @@ bool HashJoin::addBlockToJoin(const Block & source_block_, bool check_limits)
             have_compressed = true;
         }
 
+        doDebugAsserts();
         data->blocks_allocated_size += block_to_save.allocatedBytes();
         data->blocks.emplace_back(std::move(block_to_save));
         Block * stored_block = &data->blocks.back();
+        doDebugAsserts();
 
         if (rows)
             data->empty = false;
@@ -634,9 +641,11 @@ bool HashJoin::addBlockToJoin(const Block & source_block_, bool check_limits)
 
             if (!flag_per_row && !is_inserted)
             {
+                doDebugAsserts();
                 LOG_TRACE(log, "Skipping inserting block with {} rows", rows);
                 data->blocks_allocated_size -= stored_block->allocatedBytes();
                 data->blocks.pop_back();
+                doDebugAsserts();
             }
 
             if (!check_limits)
@@ -683,6 +692,8 @@ void HashJoin::shrinkStoredBlocksToFit(size_t & total_bytes_in_join, bool force_
 
     for (auto & stored_block : data->blocks)
     {
+        doDebugAsserts();
+
         size_t old_size = stored_block.allocatedBytes();
         stored_block = stored_block.shrinkToFit();
         size_t new_size = stored_block.allocatedBytes();
@@ -700,6 +711,8 @@ void HashJoin::shrinkStoredBlocksToFit(size_t & total_bytes_in_join, bool force_
         else
             /// Sometimes after clone resized block can be bigger than original
             data->blocks_allocated_size += new_size - old_size;
+
+        doDebugAsserts();
     }
 
     auto new_total_bytes_in_join = getTotalByteCount();
@@ -1416,7 +1429,13 @@ void HashJoin::tryRerangeRightTableDataImpl(Map & map [[maybe_unused]])
         };
         BlocksList sorted_blocks;
         visit_rows_map(sorted_blocks, map);
+        doDebugAsserts();
         data->blocks.swap(sorted_blocks);
+        size_t new_blocks_allocated_size = 0;
+        for (const auto & block : data->blocks)
+            new_blocks_allocated_size += block.allocatedBytes();
+        data->blocks_allocated_size = new_blocks_allocated_size;
+        doDebugAsserts();
     }
 }
 

src/Interpreters/HashJoin/HashJoin.h

@@ -470,6 +470,7 @@ private:
     void tryRerangeRightTableData() override;
     template <JoinKind KIND, typename Map, JoinStrictness STRICTNESS>
     void tryRerangeRightTableDataImpl(Map & map);
+    void doDebugAsserts() const;
 };
 
 }

src/Parsers/FunctionSecretArgumentsFinder.h

@@ -1,10 +1,42 @@
 #pragma once
 
-#include <vector>
+#include <Common/KnownObjectNames.h>
+#include <Core/QualifiedTableName.h>
+#include <base/defines.h>
+#include <boost/algorithm/string/predicate.hpp>
+
 
 namespace DB
 {
 
+class AbstractFunction
+{
+    friend class FunctionSecretArgumentsFinder;
+public:
+    class Argument
+    {
+    public:
+        virtual ~Argument() = default;
+        virtual std::unique_ptr<AbstractFunction> getFunction() const = 0;
+        virtual bool isIdentifier() const = 0;
+        virtual bool tryGetString(String * res, bool allow_identifier) const = 0;
+    };
+    class Arguments
+    {
+    public:
+        virtual ~Arguments() = default;
+        virtual size_t size() const = 0;
+        virtual std::unique_ptr<Argument> at(size_t n) const = 0;
+    };
+
+    virtual ~AbstractFunction() = default;
+    virtual String name() const = 0;
+    bool hasArguments() const { return !!arguments; }
+
+protected:
+    std::unique_ptr<Arguments> arguments;
+};
+
 class FunctionSecretArgumentsFinder
 {
 public:
@@ -23,6 +55,485 @@ public:
             return count != 0 || !nested_maps.empty();
         }
     };
+
+    explicit FunctionSecretArgumentsFinder(std::unique_ptr<AbstractFunction> && function_) : function(std::move(function_)) {}
+
+    FunctionSecretArgumentsFinder::Result getResult() const { return result; }
+
+protected:
+    const std::unique_ptr<AbstractFunction> function;
+    Result result;
+
+    void markSecretArgument(size_t index, bool argument_is_named = false)
+    {
+        if (index >= function->arguments->size())
+            return;
+        if (!result.count)
+        {
+            result.start = index;
+            result.are_named = argument_is_named;
+        }
+        chassert(index >= result.start); /// We always check arguments consecutively
+        result.count = index + 1 - result.start;
+        if (!argument_is_named)
+            result.are_named = false;
+    }
+
+    void findOrdinaryFunctionSecretArguments()
+    {
+        if ((function->name() == "mysql") || (function->name() == "postgresql") || (function->name() == "mongodb"))
+        {
+            /// mysql('host:port', 'database', 'table', 'user', 'password', ...)
+            /// postgresql('host:port', 'database', 'table', 'user', 'password', ...)
+            /// mongodb('host:port', 'database', 'collection', 'user', 'password', ...)
+            findMySQLFunctionSecretArguments();
+        }
+        else if ((function->name() == "s3") || (function->name() == "cosn") || (function->name() == "oss") ||
+                 (function->name() == "deltaLake") || (function->name() == "hudi") || (function->name() == "iceberg") ||
+                 (function->name() == "gcs"))
+        {
+            /// s3('url', 'aws_access_key_id', 'aws_secret_access_key', ...)
+            findS3FunctionSecretArguments(/* is_cluster_function= */ false);
+        }
+        else if (function->name() == "s3Cluster")
+        {
+            /// s3Cluster('cluster_name', 'url', 'aws_access_key_id', 'aws_secret_access_key', ...)
+            findS3FunctionSecretArguments(/* is_cluster_function= */ true);
+        }
+        else if (function->name() == "azureBlobStorage")
+        {
+            /// azureBlobStorage(connection_string|storage_account_url, container_name, blobpath, account_name, account_key, format, compression, structure)
+            findAzureBlobStorageFunctionSecretArguments(/* is_cluster_function= */ false);
+        }
+        else if (function->name() == "azureBlobStorageCluster")
+        {
+            /// azureBlobStorageCluster(cluster, connection_string|storage_account_url, container_name, blobpath, [account_name, account_key, format, compression, structure])
+            findAzureBlobStorageFunctionSecretArguments(/* is_cluster_function= */ true);
+        }
+        else if ((function->name() == "remote") || (function->name() == "remoteSecure"))
+        {
+            /// remote('addresses_expr', 'db', 'table', 'user', 'password', ...)
+            findRemoteFunctionSecretArguments();
+        }
+        else if ((function->name() == "encrypt") || (function->name() == "decrypt") ||
+                    (function->name() == "aes_encrypt_mysql") || (function->name() == "aes_decrypt_mysql") ||
+                    (function->name() == "tryDecrypt"))
+        {
+            /// encrypt('mode', 'plaintext', 'key' [, iv, aad])
+            findEncryptionFunctionSecretArguments();
+        }
+        else if (function->name() == "url")
+        {
+            findURLSecretArguments();
+        }
+    }
+
+    void findMySQLFunctionSecretArguments()
+    {
+        if (isNamedCollectionName(0))
+        {
+            /// mysql(named_collection, ..., password = 'password', ...)
+            findSecretNamedArgument("password", 1);
+        }
+        else
+        {
+            /// mysql('host:port', 'database', 'table', 'user', 'password', ...)
+            markSecretArgument(4);
+        }
+    }
+
+    /// Returns the number of arguments excluding "headers" and "extra_credentials" (which should
+    /// always be at the end). Marks "headers" as secret, if found.
+    size_t excludeS3OrURLNestedMaps()
+    {
+        size_t count = function->arguments->size();
+        while (count > 0)
+        {
+            const auto f = function->arguments->at(count - 1)->getFunction();
+            if (!f)
+                break;
+            if (f->name() == "headers")
+                result.nested_maps.push_back(f->name());
+            else if (f->name() != "extra_credentials")
+                break;
+            count -= 1;
+        }
+        return count;
+    }
+
+    void findS3FunctionSecretArguments(bool is_cluster_function)
+    {
+        /// s3Cluster('cluster_name', 'url', ...) has 'url' as its second argument.
+        size_t url_arg_idx = is_cluster_function ? 1 : 0;
+
+        if (!is_cluster_function && isNamedCollectionName(0))
+        {
+            /// s3(named_collection, ..., secret_access_key = 'secret_access_key', ...)
+            findSecretNamedArgument("secret_access_key", 1);
+            return;
+        }
+
+        /// We should check other arguments first because we don't need to do any replacement in case of
+        /// s3('url', NOSIGN, 'format' [, 'compression'] [, extra_credentials(..)] [, headers(..)])
+        /// s3('url', 'format', 'structure' [, 'compression'] [, extra_credentials(..)] [, headers(..)])
+        size_t count = excludeS3OrURLNestedMaps();
+        if ((url_arg_idx + 3 <= count) && (count <= url_arg_idx + 4))
+        {
+            String second_arg;
+            if (tryGetStringFromArgument(url_arg_idx + 1, &second_arg))
+            {
+                if (boost::iequals(second_arg, "NOSIGN"))
+                    return; /// The argument after 'url' is "NOSIGN".
+
+                if (second_arg == "auto" || KnownFormatNames::instance().exists(second_arg))
+                    return; /// The argument after 'url' is a format: s3('url', 'format', ...)
+            }
+        }
+
+        /// We're going to replace 'aws_secret_access_key' with '[HIDDEN]' for the following signatures:
+        /// s3('url', 'aws_access_key_id', 'aws_secret_access_key', ...)
+        /// s3Cluster('cluster_name', 'url', 'aws_access_key_id', 'aws_secret_access_key', 'format', 'compression')
+        if (url_arg_idx + 2 < count)
+            markSecretArgument(url_arg_idx + 2);
+    }
+
+    void findAzureBlobStorageFunctionSecretArguments(bool is_cluster_function)
+    {
+        /// azureBlobStorage('cluster_name', 'conn_string/storage_account_url', ...) has 'conn_string/storage_account_url' as its second argument.
+        size_t url_arg_idx = is_cluster_function ? 1 : 0;
+
+        if (!is_cluster_function && isNamedCollectionName(0))
+        {
+            /// azureBlobStorage(named_collection, ..., account_key = 'account_key', ...)
+            findSecretNamedArgument("account_key", 1);
+            return;
+        }
+        else if (is_cluster_function && isNamedCollectionName(1))
+        {
+            /// azureBlobStorageCluster(cluster, named_collection, ..., account_key = 'account_key', ...)
+            findSecretNamedArgument("account_key", 2);
+            return;
+        }
+
+        /// We should check other arguments first because we don't need to do any replacement in case storage_account_url is not used
+        /// azureBlobStorage(connection_string|storage_account_url, container_name, blobpath, account_name, account_key, format, compression, structure)
+        /// azureBlobStorageCluster(cluster, connection_string|storage_account_url, container_name, blobpath, [account_name, account_key, format, compression, structure])
+        size_t count = function->arguments->size();
+        if ((url_arg_idx + 4 <= count) && (count <= url_arg_idx + 7))
+        {
+            String second_arg;
+            if (tryGetStringFromArgument(url_arg_idx + 3, &second_arg))
+            {
+                if (second_arg == "auto" || KnownFormatNames::instance().exists(second_arg))
+                    return; /// The argument after 'url' is a format: s3('url', 'format', ...)
+            }
+        }
+
+        /// We're going to replace 'account_key' with '[HIDDEN]' if account_key is used in the signature
+        if (url_arg_idx + 4 < count)
+            markSecretArgument(url_arg_idx + 4);
+    }
+
+    void findURLSecretArguments()
+    {
+        if (!isNamedCollectionName(0))
+            excludeS3OrURLNestedMaps();
+    }
+
+    bool tryGetStringFromArgument(size_t arg_idx, String * res, bool allow_identifier = true) const
+    {
+        if (arg_idx >= function->arguments->size())
+            return false;
+
+        return tryGetStringFromArgument(*function->arguments->at(arg_idx), res, allow_identifier);
+    }
+
+    static bool tryGetStringFromArgument(const AbstractFunction::Argument & argument, String * res, bool allow_identifier = true)
+    {
+        return argument.tryGetString(res, allow_identifier);
+    }
+
+    void findRemoteFunctionSecretArguments()
+    {
+        if (isNamedCollectionName(0))
+        {
+            /// remote(named_collection, ..., password = 'password', ...)
+            findSecretNamedArgument("password", 1);
+            return;
+        }
+
+        /// We're going to replace 'password' with '[HIDDEN'] for the following signatures:
+        /// remote('addresses_expr', db.table, 'user' [, 'password'] [, sharding_key])
+        /// remote('addresses_expr', 'db', 'table', 'user' [, 'password'] [, sharding_key])
+        /// remote('addresses_expr', table_function(), 'user' [, 'password'] [, sharding_key])
+
+        /// But we should check the number of arguments first because we don't need to do any replacements in case of
+        /// remote('addresses_expr', db.table)
+        if (function->arguments->size() < 3)
+            return;
+
+        size_t arg_num = 1;
+
+        /// Skip 1 or 2 arguments with table_function() or db.table or 'db', 'table'.
+        auto table_function = function->arguments->at(arg_num)->getFunction();
+        if (table_function && KnownTableFunctionNames::instance().exists(table_function->name()))
+        {
+            ++arg_num;
+        }
+        else
+        {
+            std::optional<String> database;
+            std::optional<QualifiedTableName> qualified_table_name;
+            if (!tryGetDatabaseNameOrQualifiedTableName(arg_num, database, qualified_table_name))
+            {
+                /// We couldn't evaluate the argument so we don't know whether it is 'db.table' or just 'db'.
+                /// Hence we can't figure out whether we should skip one argument 'user' or two arguments 'table', 'user'
+                /// before the argument 'password'. So it's safer to wipe two arguments just in case.
+                /// The last argument can be also a `sharding_key`, so we need to check that argument is a literal string
+                /// before wiping it (because the `password` argument is always a literal string).
+                if (tryGetStringFromArgument(arg_num + 2, nullptr, /* allow_identifier= */ false))
+                {
+                    /// Wipe either `password` or `user`.
+                    markSecretArgument(arg_num + 2);
+                }
+                if (tryGetStringFromArgument(arg_num + 3, nullptr, /* allow_identifier= */ false))
+                {
+                    /// Wipe either `password` or `sharding_key`.
+                    markSecretArgument(arg_num + 3);
+                }
+                return;
+            }
+
+            /// Skip the current argument (which is either a database name or a qualified table name).
+            ++arg_num;
+            if (database)
+            {
+                /// Skip the 'table' argument if the previous argument was a database name.
+                ++arg_num;
+            }
+        }
+
+        /// Skip username.
+        ++arg_num;
+
+        /// Do our replacement:
+        /// remote('addresses_expr', db.table, 'user', 'password', ...) -> remote('addresses_expr', db.table, 'user', '[HIDDEN]', ...)
+        /// The last argument can be also a `sharding_key`, so we need to check that argument is a literal string
+        /// before wiping it (because the `password` argument is always a literal string).
+        bool can_be_password = tryGetStringFromArgument(arg_num, nullptr, /* allow_identifier= */ false);
+        if (can_be_password)
+            markSecretArgument(arg_num);
+    }
+
+    /// Tries to get either a database name or a qualified table name from an argument.
+    /// Empty string is also allowed (it means the default database).
+    /// The function is used by findRemoteFunctionSecretArguments() to determine how many arguments to skip before a password.
+    bool tryGetDatabaseNameOrQualifiedTableName(
+        size_t arg_idx,
+        std::optional<String> & res_database,
+        std::optional<QualifiedTableName> & res_qualified_table_name) const
+    {
+        res_database.reset();
+        res_qualified_table_name.reset();
+
+        String str;
+        if (!tryGetStringFromArgument(arg_idx, &str, /* allow_identifier= */ true))
+            return false;
+
+        if (str.empty())
+        {
+            res_database = "";
+            return true;
+        }
+
+        auto qualified_table_name = QualifiedTableName::tryParseFromString(str);
+        if (!qualified_table_name)
+            return false;
+
+        if (qualified_table_name->database.empty())
+            res_database = std::move(qualified_table_name->table);
+        else
+            res_qualified_table_name = std::move(qualified_table_name);
+        return true;
+    }
+
+    void findEncryptionFunctionSecretArguments()
+    {
+        if (function->arguments->size() == 0)
+            return;
+
+        /// We replace all arguments after 'mode' with '[HIDDEN]':
+        /// encrypt('mode', 'plaintext', 'key' [, iv, aad]) -> encrypt('mode', '[HIDDEN]')
+        result.start = 1;
+        result.count = function->arguments->size() - 1;
+    }
+
+    void findTableEngineSecretArguments()
+    {
+        const String & engine_name = function->name();
+        if (engine_name == "ExternalDistributed")
+        {
+            /// ExternalDistributed('engine', 'host:port', 'database', 'table', 'user', 'password')
+            findExternalDistributedTableEngineSecretArguments();
+        }
+        else if ((engine_name == "MySQL") || (engine_name == "PostgreSQL") ||
+                    (engine_name == "MaterializedPostgreSQL") || (engine_name == "MongoDB"))
+        {
+            /// MySQL('host:port', 'database', 'table', 'user', 'password', ...)
+            /// PostgreSQL('host:port', 'database', 'table', 'user', 'password', ...)
+            /// MaterializedPostgreSQL('host:port', 'database', 'table', 'user', 'password', ...)
+            /// MongoDB('host:port', 'database', 'collection', 'user', 'password', ...)
+            findMySQLFunctionSecretArguments();
+        }
+        else if ((engine_name == "S3") || (engine_name == "COSN") || (engine_name == "OSS") ||
+                    (engine_name == "DeltaLake") || (engine_name == "Hudi") || (engine_name == "Iceberg") || (engine_name == "S3Queue"))
+        {
+            /// S3('url', ['aws_access_key_id', 'aws_secret_access_key',] ...)
+            findS3TableEngineSecretArguments();
+        }
+        else if (engine_name == "URL")
+        {
+            findURLSecretArguments();
+        }
+    }
+
+    void findExternalDistributedTableEngineSecretArguments()
+    {
+        if (isNamedCollectionName(1))
+        {
+            /// ExternalDistributed('engine', named_collection, ..., password = 'password', ...)
+            findSecretNamedArgument("password", 2);
+        }
+        else
+        {
+            /// ExternalDistributed('engine', 'host:port', 'database', 'table', 'user', 'password')
+            markSecretArgument(5);
+        }
+    }
+
+    void findS3TableEngineSecretArguments()
+    {
+        if (isNamedCollectionName(0))
+        {
+            /// S3(named_collection, ..., secret_access_key = 'secret_access_key')
+            findSecretNamedArgument("secret_access_key", 1);
+            return;
+        }
+
+        /// We should check other arguments first because we don't need to do any replacement in case of
+        /// S3('url', NOSIGN, 'format' [, 'compression'] [, extra_credentials(..)] [, headers(..)])
+        /// S3('url', 'format', 'compression' [, extra_credentials(..)] [, headers(..)])
+        size_t count = excludeS3OrURLNestedMaps();
+        if ((3 <= count) && (count <= 4))
+        {
+            String second_arg;
+            if (tryGetStringFromArgument(1, &second_arg))
+            {
+                if (boost::iequals(second_arg, "NOSIGN"))
+                    return; /// The argument after 'url' is "NOSIGN".
+
+                if (count == 3)
+                {
+                    if (second_arg == "auto" || KnownFormatNames::instance().exists(second_arg))
+                        return; /// The argument after 'url' is a format: S3('url', 'format', ...)
+                }
+            }
+        }
+
+        /// We replace 'aws_secret_access_key' with '[HIDDEN]' for the following signatures:
+        /// S3('url', 'aws_access_key_id', 'aws_secret_access_key')
+        /// S3('url', 'aws_access_key_id', 'aws_secret_access_key', 'format')
+        /// S3('url', 'aws_access_key_id', 'aws_secret_access_key', 'format', 'compression')
+        if (2 < count)
+            markSecretArgument(2);
+    }
+
+    void findDatabaseEngineSecretArguments()
+    {
+        const String & engine_name = function->name();
+        if ((engine_name == "MySQL") || (engine_name == "MaterializeMySQL") ||
+            (engine_name == "MaterializedMySQL") || (engine_name == "PostgreSQL") ||
+            (engine_name == "MaterializedPostgreSQL"))
+        {
+            /// MySQL('host:port', 'database', 'user', 'password')
+            /// PostgreSQL('host:port', 'database', 'user', 'password')
+            findMySQLDatabaseSecretArguments();
+        }
+        else if (engine_name == "S3")
+        {
+            /// S3('url', 'access_key_id', 'secret_access_key')
+            findS3DatabaseSecretArguments();
+        }
+    }
+
+    void findMySQLDatabaseSecretArguments()
+    {
+        if (isNamedCollectionName(0))
+        {
+            /// MySQL(named_collection, ..., password = 'password', ...)
+            findSecretNamedArgument("password", 1);
+        }
+        else
+        {
+            /// MySQL('host:port', 'database', 'user', 'password')
+            markSecretArgument(3);
+        }
+    }
+
+    void findS3DatabaseSecretArguments()
+    {
+        if (isNamedCollectionName(0))
+        {
+            /// S3(named_collection, ..., secret_access_key = 'password', ...)
+            findSecretNamedArgument("secret_access_key", 1);
+        }
+        else
+        {
+            /// S3('url', 'access_key_id', 'secret_access_key')
+            markSecretArgument(2);
+        }
+    }
+
+    void findBackupNameSecretArguments()
+    {
+        const String & engine_name = function->name();
+        if (engine_name == "S3")
+        {
+            /// BACKUP ... TO S3(url, [aws_access_key_id, aws_secret_access_key])
+            markSecretArgument(2);
+        }
+    }
+
+    /// Whether a specified argument can be the name of a named collection?
+    bool isNamedCollectionName(size_t arg_idx) const
+    {
+        if (function->arguments->size() <= arg_idx)
+            return false;
+
+        return function->arguments->at(arg_idx)->isIdentifier();
+    }
+
+    /// Looks for a secret argument with a specified name. This function looks for arguments in format `key=value` where the key is specified.
+    void findSecretNamedArgument(const std::string_view & key, size_t start = 0)
+    {
+        for (size_t i = start; i < function->arguments->size(); ++i)
+        {
+            const auto & argument = function->arguments->at(i);
+            const auto equals_func = argument->getFunction();
+            if (!equals_func || (equals_func->name() != "equals"))
+                continue;
+
+            if (!equals_func->arguments || equals_func->arguments->size() != 2)
+                continue;
+
+            String found_key;
+            if (!tryGetStringFromArgument(*equals_func->arguments->at(0), &found_key))
+                continue;
+
+            if (found_key == key)
+                markSecretArgument(i, /* argument_is_named= */ true);
+        }
+    }
 };
 
 }

src/Parsers/FunctionSecretArgumentsFinderAST.h

@@ -1,35 +1,97 @@
 #pragma once
 
 #include <Parsers/FunctionSecretArgumentsFinder.h>
-#include <Core/QualifiedTableName.h>
 #include <Parsers/ASTFunction.h>
 #include <Parsers/ASTLiteral.h>
 #include <Parsers/ASTIdentifier.h>
-#include <Common/KnownObjectNames.h>
-
-#include <boost/algorithm/string/predicate.hpp>
 
 
 namespace DB
 {
 
-
+class FunctionAST : public AbstractFunction
-/// Finds arguments of a specified function which should not be displayed for most users for security reasons.
-/// That involves passwords and secret keys.
-class FunctionSecretArgumentsFinderAST
 {
 public:
-    explicit FunctionSecretArgumentsFinderAST(const ASTFunction & function_) : function(function_)
+    class ArgumentAST : public Argument
     {
-        if (!function.arguments)
+    public:
+        explicit ArgumentAST(const IAST * argument_) : argument(argument_) {}
+        std::unique_ptr<AbstractFunction> getFunction() const override
+        {
+            if (const auto * f = argument->as<ASTFunction>())
+                return std::make_unique<FunctionAST>(*f);
+            return nullptr;
+        }
+        bool isIdentifier() const override { return argument->as<ASTIdentifier>(); }
+        bool tryGetString(String * res, bool allow_identifier) const override
+        {
+            if (const auto * literal = argument->as<ASTLiteral>())
+            {
+                if (literal->value.getType() != Field::Types::String)
+                    return false;
+                if (res)
+                    *res = literal->value.safeGet<String>();
+                return true;
+            }
+
+            if (allow_identifier)
+            {
+                if (const auto * id = argument->as<ASTIdentifier>())
+                {
+                    if (res)
+                        *res = id->name();
+                    return true;
+                }
+            }
+
+            return false;
+        }
+    private:
+        const IAST * argument = nullptr;
+    };
+
+    class ArgumentsAST : public Arguments
+    {
+    public:
+        explicit ArgumentsAST(const ASTs * arguments_) : arguments(arguments_) {}
+        size_t size() const override { return arguments ? arguments->size() : 0; }
+        std::unique_ptr<Argument> at(size_t n) const override
+        {
+            return std::make_unique<ArgumentAST>(arguments->at(n).get());
+        }
+    private:
+        const ASTs * arguments = nullptr;
+    };
+
+    explicit FunctionAST(const ASTFunction & function_) : function(&function_)
+    {
+        if (!function->arguments)
             return;
 
-        const auto * expr_list = function.arguments->as<ASTExpressionList>();
+        const auto * expr_list = function->arguments->as<ASTExpressionList>();
         if (!expr_list)
             return;
 
-        arguments = &expr_list->children;
+        arguments = std::make_unique<ArgumentsAST>(&expr_list->children);
-        switch (function.kind)
+    }
+
+    String name() const override { return function->name; }
+private:
+    const ASTFunction * function = nullptr;
+};
+
+/// Finds arguments of a specified function which should not be displayed for most users for security reasons.
+/// That involves passwords and secret keys.
+class FunctionSecretArgumentsFinderAST : public FunctionSecretArgumentsFinder
+{
+public:
+    explicit FunctionSecretArgumentsFinderAST(const ASTFunction & function_)
+        : FunctionSecretArgumentsFinder(std::make_unique<FunctionAST>(function_))
+    {
+        if (!function->hasArguments())
+            return;
+
+        switch (function_.kind)
         {
             case ASTFunction::Kind::ORDINARY_FUNCTION: findOrdinaryFunctionSecretArguments(); break;
             case ASTFunction::Kind::WINDOW_FUNCTION: break;
@@ -43,507 +105,7 @@ public:
     }
 
     FunctionSecretArgumentsFinder::Result getResult() const { return result; }
-
-private:
-    const ASTFunction & function;
-    const ASTs * arguments = nullptr;
-    FunctionSecretArgumentsFinder::Result result;
-
-    void markSecretArgument(size_t index, bool argument_is_named = false)
-    {
-        if (index >= arguments->size())
-            return;
-        if (!result.count)
-        {
-            result.start = index;
-            result.are_named = argument_is_named;
-        }
-        chassert(index >= result.start); /// We always check arguments consecutively
-        result.count = index + 1 - result.start;
-        if (!argument_is_named)
-            result.are_named = false;
-    }
-
-    void findOrdinaryFunctionSecretArguments()
-    {
-        if ((function.name == "mysql") || (function.name == "postgresql") || (function.name == "mongodb"))
-        {
-            /// mysql('host:port', 'database', 'table', 'user', 'password', ...)
-            /// postgresql('host:port', 'database', 'table', 'user', 'password', ...)
-            /// mongodb('host:port', 'database', 'collection', 'user', 'password', ...)
-            findMySQLFunctionSecretArguments();
-        }
-        else if ((function.name == "s3") || (function.name == "cosn") || (function.name == "oss") ||
-                 (function.name == "deltaLake") || (function.name == "hudi") || (function.name == "iceberg") ||
-                 (function.name == "gcs"))
-        {
-            /// s3('url', 'aws_access_key_id', 'aws_secret_access_key', ...)
-            findS3FunctionSecretArguments(/* is_cluster_function= */ false);
-        }
-        else if (function.name == "s3Cluster")
-        {
-            /// s3Cluster('cluster_name', 'url', 'aws_access_key_id', 'aws_secret_access_key', ...)
-            findS3FunctionSecretArguments(/* is_cluster_function= */ true);
-        }
-        else if (function.name == "azureBlobStorage")
-        {
-            /// azureBlobStorage(connection_string|storage_account_url, container_name, blobpath, account_name, account_key, format, compression, structure)
-            findAzureBlobStorageFunctionSecretArguments(/* is_cluster_function= */ false);
-        }
-        else if (function.name == "azureBlobStorageCluster")
-        {
-            /// azureBlobStorageCluster(cluster, connection_string|storage_account_url, container_name, blobpath, [account_name, account_key, format, compression, structure])
-            findAzureBlobStorageFunctionSecretArguments(/* is_cluster_function= */ true);
-        }
-        else if ((function.name == "remote") || (function.name == "remoteSecure"))
-        {
-            /// remote('addresses_expr', 'db', 'table', 'user', 'password', ...)
-            findRemoteFunctionSecretArguments();
-        }
-        else if ((function.name == "encrypt") || (function.name == "decrypt") ||
-                    (function.name == "aes_encrypt_mysql") || (function.name == "aes_decrypt_mysql") ||
-                    (function.name == "tryDecrypt"))
-        {
-            /// encrypt('mode', 'plaintext', 'key' [, iv, aad])
-            findEncryptionFunctionSecretArguments();
-        }
-        else if (function.name == "url")
-        {
-            findURLSecretArguments();
-        }
-    }
-
-    void findMySQLFunctionSecretArguments()
-    {
-        if (isNamedCollectionName(0))
-        {
-            /// mysql(named_collection, ..., password = 'password', ...)
-            findSecretNamedArgument("password", 1);
-        }
-        else
-        {
-            /// mysql('host:port', 'database', 'table', 'user', 'password', ...)
-            markSecretArgument(4);
-        }
-    }
-
-    /// Returns the number of arguments excluding "headers" and "extra_credentials" (which should
-    /// always be at the end). Marks "headers" as secret, if found.
-    size_t excludeS3OrURLNestedMaps()
-    {
-        size_t count = arguments->size();
-        while (count > 0)
-        {
-            const ASTFunction * f = arguments->at(count - 1)->as<ASTFunction>();
-            if (!f)
-                break;
-            if (f->name == "headers")
-                result.nested_maps.push_back(f->name);
-            else if (f->name != "extra_credentials")
-                break;
-            count -= 1;
-        }
-        return count;
-    }
-
-    void findS3FunctionSecretArguments(bool is_cluster_function)
-    {
-        /// s3Cluster('cluster_name', 'url', ...) has 'url' as its second argument.
-        size_t url_arg_idx = is_cluster_function ? 1 : 0;
-
-        if (!is_cluster_function && isNamedCollectionName(0))
-        {
-            /// s3(named_collection, ..., secret_access_key = 'secret_access_key', ...)
-            findSecretNamedArgument("secret_access_key", 1);
-            return;
-        }
-
-        /// We should check other arguments first because we don't need to do any replacement in case of
-        /// s3('url', NOSIGN, 'format' [, 'compression'] [, extra_credentials(..)] [, headers(..)])
-        /// s3('url', 'format', 'structure' [, 'compression'] [, extra_credentials(..)] [, headers(..)])
-        size_t count = excludeS3OrURLNestedMaps();
-        if ((url_arg_idx + 3 <= count) && (count <= url_arg_idx + 4))
-        {
-            String second_arg;
-            if (tryGetStringFromArgument(url_arg_idx + 1, &second_arg))
-            {
-                if (boost::iequals(second_arg, "NOSIGN"))
-                    return; /// The argument after 'url' is "NOSIGN".
-
-                if (second_arg == "auto" || KnownFormatNames::instance().exists(second_arg))
-                    return; /// The argument after 'url' is a format: s3('url', 'format', ...)
-            }
-        }
-
-        /// We're going to replace 'aws_secret_access_key' with '[HIDDEN]' for the following signatures:
-        /// s3('url', 'aws_access_key_id', 'aws_secret_access_key', ...)
-        /// s3Cluster('cluster_name', 'url', 'aws_access_key_id', 'aws_secret_access_key', 'format', 'compression')
-        if (url_arg_idx + 2 < count)
-            markSecretArgument(url_arg_idx + 2);
-    }
-
-    void findAzureBlobStorageFunctionSecretArguments(bool is_cluster_function)
-    {
-        /// azureBlobStorage('cluster_name', 'conn_string/storage_account_url', ...) has 'conn_string/storage_account_url' as its second argument.
-        size_t url_arg_idx = is_cluster_function ? 1 : 0;
-
-        if (!is_cluster_function && isNamedCollectionName(0))
-        {
-            /// azureBlobStorage(named_collection, ..., account_key = 'account_key', ...)
-            findSecretNamedArgument("account_key", 1);
-            return;
-        }
-        else if (is_cluster_function && isNamedCollectionName(1))
-        {
-            /// azureBlobStorageCluster(cluster, named_collection, ..., account_key = 'account_key', ...)
-            findSecretNamedArgument("account_key", 2);
-            return;
-        }
-
-        /// We should check other arguments first because we don't need to do any replacement in case storage_account_url is not used
-        /// azureBlobStorage(connection_string|storage_account_url, container_name, blobpath, account_name, account_key, format, compression, structure)
-        /// azureBlobStorageCluster(cluster, connection_string|storage_account_url, container_name, blobpath, [account_name, account_key, format, compression, structure])
-        size_t count = arguments->size();
-        if ((url_arg_idx + 4 <= count) && (count <= url_arg_idx + 7))
-        {
-            String second_arg;
-            if (tryGetStringFromArgument(url_arg_idx + 3, &second_arg))
-            {
-                if (second_arg == "auto" || KnownFormatNames::instance().exists(second_arg))
-                    return; /// The argument after 'url' is a format: s3('url', 'format', ...)
-            }
-        }
-
-        /// We're going to replace 'account_key' with '[HIDDEN]' if account_key is used in the signature
-        if (url_arg_idx + 4 < count)
-            markSecretArgument(url_arg_idx + 4);
-    }
-
-    void findURLSecretArguments()
-    {
-        if (!isNamedCollectionName(0))
-            excludeS3OrURLNestedMaps();
-    }
-
-    bool tryGetStringFromArgument(size_t arg_idx, String * res, bool allow_identifier = true) const
-    {
-        if (arg_idx >= arguments->size())
-            return false;
-
-        return tryGetStringFromArgument(*(*arguments)[arg_idx], res, allow_identifier);
-    }
-
-    static bool tryGetStringFromArgument(const IAST & argument, String * res, bool allow_identifier = true)
-    {
-        if (const auto * literal = argument.as<ASTLiteral>())
-        {
-            if (literal->value.getType() != Field::Types::String)
-                return false;
-            if (res)
-                *res = literal->value.safeGet<String>();
-            return true;
-        }
-
-        if (allow_identifier)
-        {
-            if (const auto * id = argument.as<ASTIdentifier>())
-            {
-                if (res)
-                    *res = id->name();
-                return true;
-            }
-        }
-
-        return false;
-    }
-
-    void findRemoteFunctionSecretArguments()
-    {
-        if (isNamedCollectionName(0))
-        {
-            /// remote(named_collection, ..., password = 'password', ...)
-            findSecretNamedArgument("password", 1);
-            return;
-        }
-
-        /// We're going to replace 'password' with '[HIDDEN'] for the following signatures:
-        /// remote('addresses_expr', db.table, 'user' [, 'password'] [, sharding_key])
-        /// remote('addresses_expr', 'db', 'table', 'user' [, 'password'] [, sharding_key])
-        /// remote('addresses_expr', table_function(), 'user' [, 'password'] [, sharding_key])
-
-        /// But we should check the number of arguments first because we don't need to do any replacements in case of
-        /// remote('addresses_expr', db.table)
-        if (arguments->size() < 3)
-            return;
-
-        size_t arg_num = 1;
-
-        /// Skip 1 or 2 arguments with table_function() or db.table or 'db', 'table'.
-        const auto * table_function = (*arguments)[arg_num]->as<ASTFunction>();
-        if (table_function && KnownTableFunctionNames::instance().exists(table_function->name))
-        {
-            ++arg_num;
-        }
-        else
-        {
-            std::optional<String> database;
-            std::optional<QualifiedTableName> qualified_table_name;
-            if (!tryGetDatabaseNameOrQualifiedTableName(arg_num, database, qualified_table_name))
-            {
-                /// We couldn't evaluate the argument so we don't know whether it is 'db.table' or just 'db'.
-                /// Hence we can't figure out whether we should skip one argument 'user' or two arguments 'table', 'user'
-                /// before the argument 'password'. So it's safer to wipe two arguments just in case.
-                /// The last argument can be also a `sharding_key`, so we need to check that argument is a literal string
-                /// before wiping it (because the `password` argument is always a literal string).
-                if (tryGetStringFromArgument(arg_num + 2, nullptr, /* allow_identifier= */ false))
-                {
-                    /// Wipe either `password` or `user`.
-                    markSecretArgument(arg_num + 2);
-                }
-                if (tryGetStringFromArgument(arg_num + 3, nullptr, /* allow_identifier= */ false))
-                {
-                    /// Wipe either `password` or `sharding_key`.
-                    markSecretArgument(arg_num + 3);
-                }
-                return;
-            }
-
-            /// Skip the current argument (which is either a database name or a qualified table name).
-            ++arg_num;
-            if (database)
-            {
-                /// Skip the 'table' argument if the previous argument was a database name.
-                ++arg_num;
-            }
-        }
-
-        /// Skip username.
-        ++arg_num;
-
-        /// Do our replacement:
-        /// remote('addresses_expr', db.table, 'user', 'password', ...) -> remote('addresses_expr', db.table, 'user', '[HIDDEN]', ...)
-        /// The last argument can be also a `sharding_key`, so we need to check that argument is a literal string
-        /// before wiping it (because the `password` argument is always a literal string).
-        bool can_be_password = tryGetStringFromArgument(arg_num, nullptr, /* allow_identifier= */ false);
-        if (can_be_password)
-            markSecretArgument(arg_num);
-    }
-
-    /// Tries to get either a database name or a qualified table name from an argument.
-    /// Empty string is also allowed (it means the default database).
-    /// The function is used by findRemoteFunctionSecretArguments() to determine how many arguments to skip before a password.
-    bool tryGetDatabaseNameOrQualifiedTableName(
-        size_t arg_idx,
-        std::optional<String> & res_database,
-        std::optional<QualifiedTableName> & res_qualified_table_name) const
-    {
-        res_database.reset();
-        res_qualified_table_name.reset();
-
-        String str;
-        if (!tryGetStringFromArgument(arg_idx, &str, /* allow_identifier= */ true))
-            return false;
-
-        if (str.empty())
-        {
-            res_database = "";
-            return true;
-        }
-
-        auto qualified_table_name = QualifiedTableName::tryParseFromString(str);
-        if (!qualified_table_name)
-            return false;
-
-        if (qualified_table_name->database.empty())
-            res_database = std::move(qualified_table_name->table);
-        else
-            res_qualified_table_name = std::move(qualified_table_name);
-        return true;
-    }
-
-    void findEncryptionFunctionSecretArguments()
-    {
-        if (arguments->empty())
-            return;
-
-        /// We replace all arguments after 'mode' with '[HIDDEN]':
-        /// encrypt('mode', 'plaintext', 'key' [, iv, aad]) -> encrypt('mode', '[HIDDEN]')
-        result.start = 1;
-        result.count = arguments->size() - 1;
-    }
-
-    void findTableEngineSecretArguments()
-    {
-        const String & engine_name = function.name;
-        if (engine_name == "ExternalDistributed")
-        {
-            /// ExternalDistributed('engine', 'host:port', 'database', 'table', 'user', 'password')
-            findExternalDistributedTableEngineSecretArguments();
-        }
-        else if ((engine_name == "MySQL") || (engine_name == "PostgreSQL") ||
-                    (engine_name == "MaterializedPostgreSQL") || (engine_name == "MongoDB"))
-        {
-            /// MySQL('host:port', 'database', 'table', 'user', 'password', ...)
-            /// PostgreSQL('host:port', 'database', 'table', 'user', 'password', ...)
-            /// MaterializedPostgreSQL('host:port', 'database', 'table', 'user', 'password', ...)
-            /// MongoDB('host:port', 'database', 'collection', 'user', 'password', ...)
-            findMySQLFunctionSecretArguments();
-        }
-        else if ((engine_name == "S3") || (engine_name == "COSN") || (engine_name == "OSS") ||
-                    (engine_name == "DeltaLake") || (engine_name == "Hudi") || (engine_name == "Iceberg") || (engine_name == "S3Queue"))
-        {
-            /// S3('url', ['aws_access_key_id', 'aws_secret_access_key',] ...)
-            findS3TableEngineSecretArguments();
-        }
-        else if (engine_name == "URL")
-        {
-            findURLSecretArguments();
-        }
-    }
-
-    void findExternalDistributedTableEngineSecretArguments()
-    {
-        if (isNamedCollectionName(1))
-        {
-            /// ExternalDistributed('engine', named_collection, ..., password = 'password', ...)
-            findSecretNamedArgument("password", 2);
-        }
-        else
-        {
-            /// ExternalDistributed('engine', 'host:port', 'database', 'table', 'user', 'password')
-            markSecretArgument(5);
-        }
-    }
-
-    void findS3TableEngineSecretArguments()
-    {
-        if (isNamedCollectionName(0))
-        {
-            /// S3(named_collection, ..., secret_access_key = 'secret_access_key')
-            findSecretNamedArgument("secret_access_key", 1);
-            return;
-        }
-
-        /// We should check other arguments first because we don't need to do any replacement in case of
-        /// S3('url', NOSIGN, 'format' [, 'compression'] [, extra_credentials(..)] [, headers(..)])
-        /// S3('url', 'format', 'compression' [, extra_credentials(..)] [, headers(..)])
-        size_t count = excludeS3OrURLNestedMaps();
-        if ((3 <= count) && (count <= 4))
-        {
-            String second_arg;
-            if (tryGetStringFromArgument(1, &second_arg))
-            {
-                if (boost::iequals(second_arg, "NOSIGN"))
-                    return; /// The argument after 'url' is "NOSIGN".
-
-                if (count == 3)
-                {
-                    if (second_arg == "auto" || KnownFormatNames::instance().exists(second_arg))
-                        return; /// The argument after 'url' is a format: S3('url', 'format', ...)
-                }
-            }
-        }
-
-        /// We replace 'aws_secret_access_key' with '[HIDDEN]' for the following signatures:
-        /// S3('url', 'aws_access_key_id', 'aws_secret_access_key')
-        /// S3('url', 'aws_access_key_id', 'aws_secret_access_key', 'format')
-        /// S3('url', 'aws_access_key_id', 'aws_secret_access_key', 'format', 'compression')
-        if (2 < count)
-            markSecretArgument(2);
-    }
-
-    void findDatabaseEngineSecretArguments()
-    {
-        const String & engine_name = function.name;
-        if ((engine_name == "MySQL") || (engine_name == "MaterializeMySQL") ||
-            (engine_name == "MaterializedMySQL") || (engine_name == "PostgreSQL") ||
-            (engine_name == "MaterializedPostgreSQL"))
-        {
-            /// MySQL('host:port', 'database', 'user', 'password')
-            /// PostgreSQL('host:port', 'database', 'user', 'password')
-            findMySQLDatabaseSecretArguments();
-        }
-        else if (engine_name == "S3")
-        {
-            /// S3('url', 'access_key_id', 'secret_access_key')
-            findS3DatabaseSecretArguments();
-        }
-    }
-
-    void findMySQLDatabaseSecretArguments()
-    {
-        if (isNamedCollectionName(0))
-        {
-            /// MySQL(named_collection, ..., password = 'password', ...)
-            findSecretNamedArgument("password", 1);
-        }
-        else
-        {
-            /// MySQL('host:port', 'database', 'user', 'password')
-            markSecretArgument(3);
-        }
-    }
-
-    void findS3DatabaseSecretArguments()
-    {
-        if (isNamedCollectionName(0))
-        {
-            /// S3(named_collection, ..., secret_access_key = 'password', ...)
-            findSecretNamedArgument("secret_access_key", 1);
-        }
-        else
-        {
-            /// S3('url', 'access_key_id', 'secret_access_key')
-            markSecretArgument(2);
-        }
-    }
-
-    void findBackupNameSecretArguments()
-    {
-        const String & engine_name = function.name;
-        if (engine_name == "S3")
-        {
-            /// BACKUP ... TO S3(url, [aws_access_key_id, aws_secret_access_key])
-            markSecretArgument(2);
-        }
-    }
-
-    /// Whether a specified argument can be the name of a named collection?
-    bool isNamedCollectionName(size_t arg_idx) const
-    {
-        if (arguments->size() <= arg_idx)
-            return false;
-
-        const auto * identifier = (*arguments)[arg_idx]->as<ASTIdentifier>();
-        return identifier != nullptr;
-    }
-
-    /// Looks for a secret argument with a specified name. This function looks for arguments in format `key=value` where the key is specified.
-    void findSecretNamedArgument(const std::string_view & key, size_t start = 0)
-    {
-        for (size_t i = start; i < arguments->size(); ++i)
-        {
-            const auto & argument = (*arguments)[i];
-            const auto * equals_func = argument->as<ASTFunction>();
-            if (!equals_func || (equals_func->name != "equals"))
-                continue;
-
-            const auto * expr_list = equals_func->arguments->as<ASTExpressionList>();
-            if (!expr_list)
-                continue;
-
-            const auto & equal_args = expr_list->children;
-            if (equal_args.size() != 2)
-                continue;
-
-            String found_key;
-            if (!tryGetStringFromArgument(*equal_args[0], &found_key))
-                continue;
-
-            if (found_key == key)
-                markSecretArgument(i, /* argument_is_named= */ true);
-        }
-    }
 };
 
+
 }

src/Storages/MergeTree/GinIndexStore.cpp

@@ -24,6 +24,7 @@ namespace ErrorCodes
 {
     extern const int LOGICAL_ERROR;
     extern const int UNKNOWN_FORMAT_VERSION;
+    extern const int NOT_IMPLEMENTED;
 };
 
 GinIndexPostingsBuilder::GinIndexPostingsBuilder(UInt64 limit)
@@ -153,13 +154,18 @@ GinIndexStore::GinIndexStore(const String & name_, DataPartStoragePtr storage_)
     : name(name_)
     , storage(storage_)
 {
+    if (storage->getType() != MergeTreeDataPartStorageType::Full)
+        throw Exception(ErrorCodes::NOT_IMPLEMENTED, "INDEX {} with 'full_text' type supports only full storage", name);
 }
+
 GinIndexStore::GinIndexStore(const String & name_, DataPartStoragePtr storage_, MutableDataPartStoragePtr data_part_storage_builder_, UInt64 max_digestion_size_)
     : name(name_)
     , storage(storage_)
     , data_part_storage_builder(data_part_storage_builder_)
     , max_digestion_size(max_digestion_size_)
 {
+    if (storage->getType() != MergeTreeDataPartStorageType::Full)
+        throw Exception(ErrorCodes::NOT_IMPLEMENTED, "INDEX {} with 'full_text' type supports only full storage", name);
 }
 
 bool GinIndexStore::exists() const

src/Storages/ObjectStorageQueue/ObjectStorageQueueMetadata.cpp

@@ -110,16 +110,19 @@ private:
 ObjectStorageQueueMetadata::ObjectStorageQueueMetadata(
     const fs::path & zookeeper_path_,
     const ObjectStorageQueueTableMetadata & table_metadata_,
-    const ObjectStorageQueueSettings & settings_)
+    size_t cleanup_interval_min_ms_,
-    : settings(settings_)
+    size_t cleanup_interval_max_ms_)
-    , table_metadata(table_metadata_)
+    : table_metadata(table_metadata_)
+    , mode(table_metadata.getMode())
     , zookeeper_path(zookeeper_path_)
-    , buckets_num(getBucketsNum(settings_))
+    , buckets_num(getBucketsNum(table_metadata_))
+    , cleanup_interval_min_ms(cleanup_interval_min_ms_)
+    , cleanup_interval_max_ms(cleanup_interval_max_ms_)
     , log(getLogger("StorageObjectStorageQueue(" + zookeeper_path_.string() + ")"))
     , local_file_statuses(std::make_shared<LocalFileStatuses>())
 {
-    if (settings.mode == ObjectStorageQueueMode::UNORDERED
+    if (mode == ObjectStorageQueueMode::UNORDERED
-        && (settings.tracked_files_limit || settings.tracked_file_ttl_sec))
+        && (table_metadata.tracked_files_limit || table_metadata.tracked_file_ttl_sec))
     {
         task = Context::getGlobalContextInstance()->getSchedulePool().createTask(
             "ObjectStorageQueueCleanupFunc",
@@ -128,10 +131,10 @@ ObjectStorageQueueMetadata::ObjectStorageQueueMetadata(
         task->activate();
         task->scheduleAfter(
             generateRescheduleInterval(
-                settings.cleanup_interval_min_ms, settings.cleanup_interval_max_ms));
+                cleanup_interval_min_ms, cleanup_interval_max_ms));
     }
     LOG_TRACE(log, "Mode: {}, buckets: {}, processing threads: {}, result buckets num: {}",
-              settings.mode.toString(), settings.buckets, settings.processing_threads_num, buckets_num);
+              table_metadata.mode, table_metadata.buckets, table_metadata.processing_threads_num, buckets_num);
 
 }
 
@@ -162,7 +165,7 @@ ObjectStorageQueueMetadata::FileMetadataPtr ObjectStorageQueueMetadata::getFileM
     ObjectStorageQueueOrderedFileMetadata::BucketInfoPtr bucket_info)
 {
     auto file_status = local_file_statuses->get(path, /* create */true);
-    switch (settings.mode.value)
+    switch (mode)
     {
         case ObjectStorageQueueMode::ORDERED:
             return std::make_shared<ObjectStorageQueueOrderedFileMetadata>(
@@ -171,39 +174,28 @@ ObjectStorageQueueMetadata::FileMetadataPtr ObjectStorageQueueMetadata::getFileM
                 file_status,
                 bucket_info,
                 buckets_num,
-                settings.loading_retries,
+                table_metadata.loading_retries,
                 log);
         case ObjectStorageQueueMode::UNORDERED:
             return std::make_shared<ObjectStorageQueueUnorderedFileMetadata>(
                 zookeeper_path,
                 path,
                 file_status,
-                settings.loading_retries,
+                table_metadata.loading_retries,
                 log);
     }
 }
 
-size_t ObjectStorageQueueMetadata::getBucketsNum(const ObjectStorageQueueSettings & settings)
+size_t ObjectStorageQueueMetadata::getBucketsNum(const ObjectStorageQueueTableMetadata & metadata)
 {
-    if (settings.buckets)
+    if (metadata.buckets)
-        return settings.buckets;
+        return metadata.buckets;
-    if (settings.processing_threads_num)
+    return metadata.processing_threads_num;
-        return settings.processing_threads_num;
-    return 0;
-}
-
-size_t ObjectStorageQueueMetadata::getBucketsNum(const ObjectStorageQueueTableMetadata & settings)
-{
-    if (settings.buckets)
-        return settings.buckets;
-    if (settings.processing_threads_num)
-        return settings.processing_threads_num;
-    return 0;
 }
 
 bool ObjectStorageQueueMetadata::useBucketsForProcessing() const
 {
-    return settings.mode == ObjectStorageQueueMode::ORDERED && (buckets_num > 1);
+    return mode == ObjectStorageQueueMode::ORDERED && (buckets_num > 1);
 }
 
 ObjectStorageQueueMetadata::Bucket ObjectStorageQueueMetadata::getBucketForPath(const std::string & path) const
@@ -217,18 +209,35 @@ ObjectStorageQueueMetadata::tryAcquireBucket(const Bucket & bucket, const Proces
     return ObjectStorageQueueOrderedFileMetadata::tryAcquireBucket(zookeeper_path, bucket, processor, log);
 }
 
-void ObjectStorageQueueMetadata::syncWithKeeper(
+ObjectStorageQueueTableMetadata ObjectStorageQueueMetadata::syncWithKeeper(
     const fs::path & zookeeper_path,
-    const ObjectStorageQueueTableMetadata & table_metadata,
     const ObjectStorageQueueSettings & settings,
+    const ColumnsDescription & columns,
+    const std::string & format,
     LoggerPtr log)
 {
-    const auto table_metadata_path = zookeeper_path / "metadata";
+    ObjectStorageQueueTableMetadata table_metadata(settings, columns, format);
-    const auto buckets_num = getBucketsNum(settings);
-    const auto metadata_paths = settings.mode == ObjectStorageQueueMode::ORDERED
-        ? ObjectStorageQueueOrderedFileMetadata::getMetadataPaths(buckets_num)
-        : ObjectStorageQueueUnorderedFileMetadata::getMetadataPaths();
 
+    std::vector<std::string> metadata_paths;
+    size_t buckets_num = 0;
+    if (settings.mode == ObjectStorageQueueMode::ORDERED)
+    {
+        buckets_num = getBucketsNum(table_metadata);
+        if (buckets_num == 0)
+            throw Exception(
+                ErrorCodes::LOGICAL_ERROR,
+                "Cannot have zero values of `processing_threads_num` and `buckets`");
+
+        LOG_TRACE(log, "Local buckets num: {}", buckets_num);
+
+        metadata_paths = ObjectStorageQueueOrderedFileMetadata::getMetadataPaths(buckets_num);
+    }
+    else
+    {
+        metadata_paths = ObjectStorageQueueUnorderedFileMetadata::getMetadataPaths();
+    }
+
+    const auto table_metadata_path = zookeeper_path / "metadata";
     auto zookeeper = getZooKeeper();
     zookeeper->createAncestors(zookeeper_path);
 
@@ -242,7 +251,7 @@ void ObjectStorageQueueMetadata::syncWithKeeper(
             LOG_TRACE(log, "Metadata in keeper: {}", metadata_str);
 
             table_metadata.checkEquals(metadata_from_zk);
-            return;
+            return table_metadata;
         }
 
         Coordination::Requests requests;
@@ -256,15 +265,15 @@ void ObjectStorageQueueMetadata::syncWithKeeper(
             requests.emplace_back(zkutil::makeCreateRequest(zk_path, "", zkutil::CreateMode::Persistent));
         }
 
-        if (!settings.last_processed_path.value.empty())
+        if (!table_metadata.last_processed_path.empty())
         {
             ObjectStorageQueueOrderedFileMetadata(
                 zookeeper_path,
-                settings.last_processed_path,
+                table_metadata.last_processed_path,
                 std::make_shared<FileStatus>(),
                 /* bucket_info */nullptr,
                 buckets_num,
-                settings.loading_retries,
+                table_metadata.loading_retries,
                 log).setProcessedAtStartRequests(requests, zookeeper);
         }
 
@@ -283,7 +292,7 @@ void ObjectStorageQueueMetadata::syncWithKeeper(
         else if (code != Coordination::Error::ZOK)
             zkutil::KeeperMultiException::check(code, requests, responses);
 
-        return;
+        return table_metadata;
     }
 
     throw Exception(
@@ -295,7 +304,7 @@ void ObjectStorageQueueMetadata::syncWithKeeper(
 void ObjectStorageQueueMetadata::cleanupThreadFunc()
 {
     /// A background task is responsible for maintaining
-    /// settings.tracked_files_limit and max_set_age settings for `unordered` processing mode.
+    /// table_metadata.tracked_files_limit and max_set_age settings for `unordered` processing mode.
 
     if (shutdown_called)
         return;
@@ -314,7 +323,7 @@ void ObjectStorageQueueMetadata::cleanupThreadFunc()
 
     task->scheduleAfter(
         generateRescheduleInterval(
-            settings.cleanup_interval_min_ms, settings.cleanup_interval_max_ms));
+            cleanup_interval_min_ms, cleanup_interval_max_ms));
 }
 
 void ObjectStorageQueueMetadata::cleanupThreadFuncImpl()
@@ -357,11 +366,11 @@ void ObjectStorageQueueMetadata::cleanupThreadFuncImpl()
         return;
     }
 
-    chassert(settings.tracked_files_limit || settings.tracked_file_ttl_sec);
+    chassert(table_metadata.tracked_files_limit || table_metadata.tracked_file_ttl_sec);
-    const bool check_nodes_limit = settings.tracked_files_limit > 0;
+    const bool check_nodes_limit = table_metadata.tracked_files_limit > 0;
-    const bool check_nodes_ttl = settings.tracked_file_ttl_sec > 0;
+    const bool check_nodes_ttl = table_metadata.tracked_file_ttl_sec > 0;
 
-    const bool nodes_limit_exceeded = nodes_num > settings.tracked_files_limit;
+    const bool nodes_limit_exceeded = nodes_num > table_metadata.tracked_files_limit;
     if ((!nodes_limit_exceeded || !check_nodes_limit) && !check_nodes_ttl)
     {
         LOG_TEST(log, "No limit exceeded");
@@ -434,9 +443,9 @@ void ObjectStorageQueueMetadata::cleanupThreadFuncImpl()
             wb << fmt::format("Node: {}, path: {}, timestamp: {};\n", node, metadata.file_path, metadata.last_processed_timestamp);
         return wb.str();
     };
-    LOG_TEST(log, "Checking node limits (max size: {}, max age: {}) for {}", settings.tracked_files_limit, settings.tracked_file_ttl_sec, get_nodes_str());
+    LOG_TEST(log, "Checking node limits (max size: {}, max age: {}) for {}", table_metadata.tracked_files_limit, table_metadata.tracked_file_ttl_sec, get_nodes_str());
 
-    size_t nodes_to_remove = check_nodes_limit && nodes_limit_exceeded ? nodes_num - settings.tracked_files_limit : 0;
+    size_t nodes_to_remove = check_nodes_limit && nodes_limit_exceeded ? nodes_num - table_metadata.tracked_files_limit : 0;
     for (const auto & node : sorted_nodes)
     {
         if (nodes_to_remove)
@@ -455,7 +464,7 @@ void ObjectStorageQueueMetadata::cleanupThreadFuncImpl()
         else if (check_nodes_ttl)
         {
             UInt64 node_age = getCurrentTime() - node.metadata.last_processed_timestamp;
-            if (node_age >= settings.tracked_file_ttl_sec)
+            if (node_age >= table_metadata.tracked_file_ttl_sec)
             {
                 LOG_TRACE(log, "Removing node at path {} ({}) because file ttl is reached",
                         node.metadata.file_path, node.zk_path);

src/Storages/ObjectStorageQueue/ObjectStorageQueueMetadata.h

@@ -56,14 +56,16 @@ public:
     ObjectStorageQueueMetadata(
         const fs::path & zookeeper_path_,
         const ObjectStorageQueueTableMetadata & table_metadata_,
-        const ObjectStorageQueueSettings & settings_);
+        size_t cleanup_interval_min_ms_,
+        size_t cleanup_interval_max_ms_);
 
     ~ObjectStorageQueueMetadata();
 
-    static void syncWithKeeper(
+    static ObjectStorageQueueTableMetadata syncWithKeeper(
         const fs::path & zookeeper_path,
-        const ObjectStorageQueueTableMetadata & table_metadata,
         const ObjectStorageQueueSettings & settings,
+        const ColumnsDescription & columns,
+        const std::string & format,
         LoggerPtr log);
 
     void shutdown();
@@ -78,8 +80,7 @@ public:
     Bucket getBucketForPath(const std::string & path) const;
     ObjectStorageQueueOrderedFileMetadata::BucketHolderPtr tryAcquireBucket(const Bucket & bucket, const Processor & processor);
 
-    static size_t getBucketsNum(const ObjectStorageQueueSettings & settings);
+    static size_t getBucketsNum(const ObjectStorageQueueTableMetadata & metadata);
-    static size_t getBucketsNum(const ObjectStorageQueueTableMetadata & settings);
 
     void checkTableMetadataEquals(const ObjectStorageQueueMetadata & other);
 
@@ -90,10 +91,11 @@ private:
     void cleanupThreadFunc();
     void cleanupThreadFuncImpl();
 
-    ObjectStorageQueueSettings settings;
     ObjectStorageQueueTableMetadata table_metadata;
+    const ObjectStorageQueueMode mode;
     const fs::path zookeeper_path;
     const size_t buckets_num;
+    const size_t cleanup_interval_min_ms, cleanup_interval_max_ms;
 
     LoggerPtr log;
 

src/Storages/ObjectStorageQueue/ObjectStorageQueueTableMetadata.cpp

@@ -27,6 +27,12 @@ namespace
             return ObjectStorageQueueMode::UNORDERED;
         throw Exception(ErrorCodes::BAD_ARGUMENTS, "Unexpected ObjectStorageQueue mode: {}", mode);
     }
+
+    void validateMode(const std::string & mode)
+    {
+        if (mode != "ordered" && mode != "unordered")
+            throw Exception(ErrorCodes::BAD_ARGUMENTS, "Unexpected ObjectStorageQueue mode: {}", mode);
+    }
 }
 
 
@@ -42,6 +48,8 @@ ObjectStorageQueueTableMetadata::ObjectStorageQueueTableMetadata(
     , tracked_file_ttl_sec(engine_settings.tracked_file_ttl_sec)
     , buckets(engine_settings.buckets)
     , processing_threads_num(engine_settings.processing_threads_num)
+    , last_processed_path(engine_settings.last_processed_path)
+    , loading_retries(engine_settings.loading_retries)
 {
 }
 
@@ -57,6 +65,7 @@ String ObjectStorageQueueTableMetadata::toString() const
     json.set("format_name", format_name);
     json.set("columns", columns);
     json.set("last_processed_file", last_processed_path);
+    json.set("loading_retries", loading_retries);
 
     std::ostringstream oss; // STYLE_CHECK_ALLOW_STD_STRING_STREAM
     oss.exceptions(std::ios::failbit);
@@ -64,6 +73,11 @@ String ObjectStorageQueueTableMetadata::toString() const
     return oss.str();
 }
 
+ObjectStorageQueueMode ObjectStorageQueueTableMetadata::getMode() const
+{
+    return modeFromString(mode);
+}
+
 template <typename T>
 static auto getOrDefault(
     const Poco::JSON::Object::Ptr & json,
@@ -90,7 +104,9 @@ ObjectStorageQueueTableMetadata::ObjectStorageQueueTableMetadata(const Poco::JSO
     , buckets(getOrDefault(json, "buckets", "", 0))
     , processing_threads_num(getOrDefault(json, "processing_threads_num", "s3queue_", 1))
     , last_processed_path(getOrDefault<String>(json, "last_processed_file", "s3queue_", ""))
+    , loading_retries(getOrDefault(json, "loading_retries", "", 10))
 {
+    validateMode(mode);
 }
 
 ObjectStorageQueueTableMetadata ObjectStorageQueueTableMetadata::parse(const String & metadata_str)

src/Storages/ObjectStorageQueue/ObjectStorageQueueTableMetadata.h

@@ -27,6 +27,7 @@ struct ObjectStorageQueueTableMetadata
     const UInt64 buckets;
     const UInt64 processing_threads_num;
     const String last_processed_path;
+    const UInt64 loading_retries;
 
     ObjectStorageQueueTableMetadata(
         const ObjectStorageQueueSettings & engine_settings,
@@ -39,6 +40,8 @@ struct ObjectStorageQueueTableMetadata
 
     String toString() const;
 
+    ObjectStorageQueueMode getMode() const;
+
     void checkEquals(const ObjectStorageQueueTableMetadata & from_zk) const;
 
 private:

src/Storages/ObjectStorageQueue/StorageObjectStorageQueue.cpp

@@ -62,7 +62,7 @@ namespace
         return zkutil::extractZooKeeperPath(result_zk_path, true);
     }
 
-    void checkAndAdjustSettings(
+    void validateSettings(
         ObjectStorageQueueSettings & queue_settings,
         bool is_attach)
     {
@@ -144,7 +144,7 @@ StorageObjectStorageQueue::StorageObjectStorageQueue(
         throw Exception(ErrorCodes::BAD_QUERY_PARAMETER, "ObjectStorageQueue url must either end with '/' or contain globs");
     }
 
-    checkAndAdjustSettings(*queue_settings, mode > LoadingStrictnessLevel::CREATE);
+    validateSettings(*queue_settings, mode > LoadingStrictnessLevel::CREATE);
 
     object_storage = configuration->createObjectStorage(context_, /* is_readonly */true);
     FormatFactory::instance().checkFormatName(configuration->format);
@@ -164,10 +164,12 @@ StorageObjectStorageQueue::StorageObjectStorageQueue(
 
     LOG_INFO(log, "Using zookeeper path: {}", zk_path.string());
 
-    ObjectStorageQueueTableMetadata table_metadata(*queue_settings, storage_metadata.getColumns(), configuration_->format);
+    auto table_metadata = ObjectStorageQueueMetadata::syncWithKeeper(
-    ObjectStorageQueueMetadata::syncWithKeeper(zk_path, table_metadata, *queue_settings, log);
+        zk_path, *queue_settings, storage_metadata.getColumns(), configuration_->format, log);
+
+    auto queue_metadata = std::make_unique<ObjectStorageQueueMetadata>(
+        zk_path, std::move(table_metadata), queue_settings->cleanup_interval_min_ms, queue_settings->cleanup_interval_max_ms);
 
-    auto queue_metadata = std::make_unique<ObjectStorageQueueMetadata>(zk_path, std::move(table_metadata), *queue_settings);
     files_metadata = ObjectStorageQueueMetadataFactory::instance().getOrCreate(zk_path, std::move(queue_metadata));
 
     task = getContext()->getSchedulePool().createTask("ObjectStorageQueueStreamingTask", [this] { threadFunc(); });

tests/integration/test_access_for_functions/test.py

@@ -42,7 +42,7 @@ def test_access_rights_for_function():
     function_resolution_error = instance.query_and_get_error("SELECT MySum(1, 2)")
     assert (
         "Unknown function MySum" in function_resolution_error
-        or "Function with name 'MySum' does not exist." in function_resolution_error
+        or "Function with name `MySum` does not exist." in function_resolution_error
     )
 
     instance.query("REVOKE CREATE FUNCTION ON *.* FROM A")

tests/integration/test_sql_user_defined_functions_on_cluster/test.py

@@ -28,7 +28,7 @@ def test_sql_user_defined_functions_on_cluster():
         error_message = node.query_and_get_error("SELECT test_function(1);")
         assert (
             "Unknown function test_function" in error_message
-            or "Function with name 'test_function' does not exist. In scope SELECT test_function(1)"
+            or "Function with name `test_function` does not exist. In scope SELECT test_function(1)"
             in error_message
         )
 

tests/integration/test_storage_azure_blob_storage/test.py

@@ -1587,7 +1587,7 @@ def test_hive_partitioning_without_setting(cluster):
         f"blob_path='{path}', format='CSVWithNames', structure='{table_format}');"
     )
     pattern = re.compile(
-        r"DB::Exception: Unknown expression identifier '.*' in scope.*", re.DOTALL
+        r"DB::Exception: Unknown expression identifier `.*` in scope.*", re.DOTALL
     )
 
     with pytest.raises(Exception, match=pattern):

tests/integration/test_storage_hdfs/test.py

@@ -1284,7 +1284,7 @@ def test_hive_partitioning_without_setting(started_cluster):
         == f"Elizabeth\tGordon\n"
     )
     pattern = re.compile(
-        r"DB::Exception: Unknown expression identifier '.*' in scope.*", re.DOTALL
+        r"DB::Exception: Unknown expression identifier `.*` in scope.*", re.DOTALL
     )
 
     with pytest.raises(QueryRuntimeException, match=pattern):

tests/integration/test_user_defined_object_persistence/test.py

@@ -43,20 +43,20 @@ def test_persistence():
     error_message = instance.query_and_get_error("SELECT MySum1(1, 2)")
     assert (
         "Unknown function MySum1" in error_message
-        or "Function with name 'MySum1' does not exist. In scope SELECT MySum1(1, 2)"
+        or "Function with name `MySum1` does not exist. In scope SELECT MySum1(1, 2)"
         in error_message
     )
 
     error_message = instance.query_and_get_error("SELECT MySum2(1, 2)")
     assert (
         "Unknown function MySum2" in error_message
-        or "Function with name 'MySum2' does not exist. In scope SELECT MySum2(1, 2)"
+        or "Function with name `MySum2` does not exist. In scope SELECT MySum2(1, 2)"
         in error_message
     )
 
     error_message = instance.query_and_get_error("SELECT MyUnion()")
     assert (
         "Unknown function MyUnion" in error_message
-        or "Function with name 'MyUnion' does not exist. In scope SELECT MyUnion"
+        or "Function with name `MyUnion` does not exist. In scope SELECT MyUnion"
         in error_message
     )

tests/queries/0_stateless/03096_text_log_format_string_args_not_empty.sql

@@ -8,6 +8,6 @@ system flush logs;
 
 select count() > 0 from system.text_log where message_format_string = 'Peak memory usage{}: {}.' and value1 is not null and value2 like '% MiB';
 
-select count() > 0 from system.text_log where level = 'Error' and message_format_string = 'Unknown {}{} identifier \'{}\' in scope {}{}' and value1 = 'expression' and value3 = 'count' and value4 = 'SELECT count';
+select count() > 0 from system.text_log where level = 'Error' and message_format_string = 'Unknown {}{} identifier {} in scope {}{}' and value1 = 'expression' and value3 = '`count`' and value4 = 'SELECT count';
 
-select count() > 0 from system.text_log where level = 'Error' and message_format_string = 'Function with name \'{}\' does not exist. In scope {}{}' and value1 = 'conut' and value2 = 'SELECT conut()' and value3 ilike '%\'count\'%';
+select count() > 0 from system.text_log where level = 'Error' and message_format_string = 'Function with name {} does not exist. In scope {}{}' and value1 = '`conut`' and value2 = 'SELECT conut()' and value3 ilike '%\'count\'%';

tests/queries/0_stateless/03203_function_printf.reference

@@ -1,21 +1,31 @@
-1
+%d: 123
-1
+%d: -123
-1
+%d: 0
-1
+%d: 9223372036854775807
-1
+%i: 123
-1
+%u: 123
-1
+%o: 173
-1
+%x: 7b
-1
+%X: 7B
-1
+%f: 0.000000
-1
+%f: 123.456000
-1
+%f: -123.456000
-1
+%F: 123.456000
-1
+%e: 1.234560e+02
-1
+%E: 1.234560E+02
-1
+%g: 123.456
-1
+%G: 123.456
-1
+%a: 0x1.edd2f1a9fbe77p+6
-1
+%A: 0X1.EDD2F1A9FBE77P+6
-1
+%s: abc
-1
+   ┌─printf('%%s: %s', '\n\t')─┐
+1. │ %s: 
+	                    │
+   └───────────────────────────┘
+%s: 
+%%: %
+%.5d: 00123
+%.2f: 123.46
+%.2e: 1.23e+02
+%.2g: 1.2e+02
+%.2s: ab

tests/queries/0_stateless/03203_function_printf.sql

@@ -1,39 +1,47 @@
 -- Testing integer formats
-select printf('%%d: %d', 123) = '%d: 123';
+select printf('%%d: %d', 123);
-select printf('%%i: %i', 123) = '%i: 123';
+select printf('%%d: %d', -123);
-select printf('%%u: %u', 123) = '%u: 123';
+select printf('%%d: %d', 0);
-select printf('%%o: %o', 123) = '%o: 173';
+select printf('%%d: %d', 9223372036854775807);
-select printf('%%x: %x', 123) = '%x: 7b';
+select printf('%%i: %i', 123);
-select printf('%%X: %X', 123) = '%X: 7B';
+select printf('%%u: %u', 123);
+select printf('%%o: %o', 123);
+select printf('%%x: %x', 123);
+select printf('%%X: %X', 123);
 
 -- Testing floating point formats
-select printf('%%f: %f', 123.456) = '%f: 123.456000';
+select printf('%%f: %f', 0.0);
-select printf('%%F: %F', 123.456) = '%F: 123.456000';
+select printf('%%f: %f', 123.456);
-select printf('%%e: %e', 123.456) = '%e: 1.234560e+02';
+select printf('%%f: %f', -123.456);
-select printf('%%E: %E', 123.456) = '%E: 1.234560E+02';
+select printf('%%F: %F', 123.456);
-select printf('%%g: %g', 123.456) = '%g: 123.456';
+select printf('%%e: %e', 123.456);
-select printf('%%G: %G', 123.456) = '%G: 123.456';
+select printf('%%E: %E', 123.456);
-select printf('%%a: %a', 123.456) = '%a: 0x1.edd2f1a9fbe77p+6';
+select printf('%%g: %g', 123.456);
-select printf('%%A: %A', 123.456) = '%A: 0X1.EDD2F1A9FBE77P+6';
+select printf('%%G: %G', 123.456);
+select printf('%%a: %a', 123.456);
+select printf('%%A: %A', 123.456);
 
 -- Testing character formats
-select printf('%%s: %s', 'abc') = '%s: abc';
+select printf('%%s: %s', 'abc');
+SELECT printf('%%s: %s', '\n\t') FORMAT PrettyCompact;
+select printf('%%s: %s', '');
 
 -- Testing the %% specifier
-select printf('%%%%: %%') = '%%: %';
+select printf('%%%%: %%');
 
 -- Testing integer formats with precision
-select printf('%%.5d: %.5d', 123) = '%.5d: 00123';
+select printf('%%.5d: %.5d', 123);
 
 -- Testing floating point formats with precision
-select printf('%%.2f: %.2f', 123.456) = '%.2f: 123.46';
+select printf('%%.2f: %.2f', 123.456);
-select printf('%%.2e: %.2e', 123.456) = '%.2e: 1.23e+02';
+select printf('%%.2e: %.2e', 123.456);
-select printf('%%.2g: %.2g', 123.456) = '%.2g: 1.2e+02';
+select printf('%%.2g: %.2g', 123.456);
 
 -- Testing character formats with precision
-select printf('%%.2s: %.2s', 'abc') = '%.2s: ab';
+select printf('%%.2s: %.2s', 'abc');
 
 select printf('%%X: %X', 123.123); -- { serverError BAD_ARGUMENTS }
 select printf('%%A: %A', 'abc'); -- { serverError BAD_ARGUMENTS }
 select printf('%%s: %s', 100); -- { serverError BAD_ARGUMENTS }
 select printf('%%n: %n', 100); -- { serverError BAD_ARGUMENTS }
+select printf('%%f: %f', 0); -- { serverError BAD_ARGUMENTS }

utils/keeper-bench/Runner.cpp

@@ -1114,6 +1114,7 @@ void Runner::runBenchmarkFromLog()
         else
         {
             request_from_log->connection = get_zookeeper_connection(request_from_log->session_id);
+            request_from_log->executor_id %= concurrency;
             push_request(std::move(*request_from_log));
         }
 

utils/keeper-data-dumper/main.cpp

@@ -28,13 +28,13 @@ void dumpMachine(std::shared_ptr<KeeperStateMachine<DB::KeeperMemoryStorage>> ma
         keys.pop();
         std::cout << key << "\n";
         auto value = storage.container.getValue(key);
-        std::cout << "\tStat: {version: " << value.version <<
+        std::cout << "\tStat: {version: " << value.stats.version <<
-            ", mtime: " << value.mtime <<
+            ", mtime: " << value.stats.mtime <<
-            ", emphemeralOwner: " << value.ephemeralOwner() <<
+            ", emphemeralOwner: " << value.stats.ephemeralOwner() <<
-            ", czxid: " << value.czxid <<
+            ", czxid: " << value.stats.czxid <<
-            ", mzxid: " << value.mzxid <<
+            ", mzxid: " << value.stats.mzxid <<
-            ", numChildren: " << value.numChildren() <<
+            ", numChildren: " << value.stats.numChildren() <<
-            ", dataLength: " << value.data_size <<
+            ", dataLength: " << value.stats.data_size <<
             "}" << std::endl;
         std::cout << "\tData: " << storage.container.getValue(key).getData() << std::endl;