ClickHouse/dbms/src/Core/Defines.h
Alexander Tokmakov acef7fc5bd add test
2020-02-06 20:23:05 +03:00

166 lines
6.7 KiB
C++

#pragma once
#define DBMS_DEFAULT_HOST "localhost"
#define DBMS_DEFAULT_PORT 9000
#define DBMS_DEFAULT_SECURE_PORT 9440
#define DBMS_DEFAULT_HTTP_PORT 8123
#define DBMS_DEFAULT_CONNECT_TIMEOUT_SEC 10
#define DBMS_DEFAULT_CONNECT_TIMEOUT_WITH_FAILOVER_MS 50
#define DBMS_DEFAULT_CONNECT_TIMEOUT_WITH_FAILOVER_SECURE_MS 100
#define DBMS_DEFAULT_SEND_TIMEOUT_SEC 300
#define DBMS_DEFAULT_RECEIVE_TIMEOUT_SEC 300
/// Timeout for synchronous request-result protocol call (like Ping or TablesStatus).
#define DBMS_DEFAULT_SYNC_REQUEST_TIMEOUT_SEC 5
#define DBMS_DEFAULT_POLL_INTERVAL 10
/// The size of the I/O buffer by default.
#define DBMS_DEFAULT_BUFFER_SIZE 1048576ULL
/** Which blocks by default read the data (by number of rows).
* Smaller values give better cache locality, less consumption of RAM, but more overhead to process the query.
*/
#define DEFAULT_BLOCK_SIZE 65536
/** Which blocks should be formed for insertion into the table, if we control the formation of blocks.
* (Sometimes the blocks are inserted exactly such blocks that have been read / transmitted from the outside, and this parameter does not affect their size.)
* More than DEFAULT_BLOCK_SIZE, because in some tables a block of data on the disk is created for each block (quite a big thing),
* and if the parts were small, then it would be costly then to combine them.
*/
#define DEFAULT_INSERT_BLOCK_SIZE 1048576
/** The same, but for merge operations. Less DEFAULT_BLOCK_SIZE for saving RAM (since all the columns are read).
* Significantly less, since there are 10-way mergers.
*/
#define DEFAULT_MERGE_BLOCK_SIZE 8192
#define DEFAULT_TEMPORARY_LIVE_VIEW_TIMEOUT_SEC 5
#define SHOW_CHARS_ON_SYNTAX_ERROR ptrdiff_t(160)
#define DEFAULT_LIVE_VIEW_HEARTBEAT_INTERVAL_SEC 15
#define DBMS_DEFAULT_DISTRIBUTED_CONNECTIONS_POOL_SIZE 1024
#define DBMS_CONNECTION_POOL_WITH_FAILOVER_DEFAULT_MAX_TRIES 3
/// each period reduces the error counter by 2 times
/// too short a period can cause errors to disappear immediately after creation.
#define DBMS_CONNECTION_POOL_WITH_FAILOVER_DEFAULT_DECREASE_ERROR_PERIOD 60
/// replica error max cap, this is to prevent replica from accumulating too many errors and taking to long to recover.
#define DBMS_CONNECTION_POOL_WITH_FAILOVER_MAX_ERROR_COUNT 1000
#define DBMS_MIN_REVISION_WITH_CLIENT_INFO 54032
#define DBMS_MIN_REVISION_WITH_SERVER_TIMEZONE 54058
#define DBMS_MIN_REVISION_WITH_QUOTA_KEY_IN_CLIENT_INFO 54060
#define DBMS_MIN_REVISION_WITH_TABLES_STATUS 54226
#define DBMS_MIN_REVISION_WITH_TIME_ZONE_PARAMETER_IN_DATETIME_DATA_TYPE 54337
#define DBMS_MIN_REVISION_WITH_SERVER_DISPLAY_NAME 54372
#define DBMS_MIN_REVISION_WITH_VERSION_PATCH 54401
#define DBMS_MIN_REVISION_WITH_SERVER_LOGS 54406
#define DBMS_MIN_REVISION_WITH_CLIENT_SUPPORT_EMBEDDED_DATA 54415
/// Minimum revision with exactly the same set of aggregation methods and rules to select them.
/// Two-level (bucketed) aggregation is incompatible if servers are inconsistent in these rules
/// (keys will be placed in different buckets and result will not be fully aggregated).
#define DBMS_MIN_REVISION_WITH_CURRENT_AGGREGATION_VARIANT_SELECTION_METHOD 54408
#define DBMS_MIN_REVISION_WITH_COLUMN_DEFAULTS_METADATA 54410
#define DBMS_MIN_REVISION_WITH_LOW_CARDINALITY_TYPE 54405
#define DBMS_MIN_REVISION_WITH_CLIENT_WRITE_INFO 54420
/// Mininum revision supporting SettingsBinaryFormat::STRINGS.
#define DBMS_MIN_REVISION_WITH_SETTINGS_SERIALIZED_AS_STRINGS 54429
/// Version of ClickHouse TCP protocol. Set to git tag with latest protocol change.
#define DBMS_TCP_PROTOCOL_VERSION 54226
/// The boundary on which the blocks for asynchronous file operations should be aligned.
#define DEFAULT_AIO_FILE_BLOCK_SIZE 4096
#define DEFAULT_HTTP_READ_BUFFER_TIMEOUT 1800
#define DEFAULT_HTTP_READ_BUFFER_CONNECTION_TIMEOUT 1
/// Maximum namber of http-connections between two endpoints
/// the number is unmotivated
#define DEFAULT_COUNT_OF_HTTP_CONNECTIONS_PER_ENDPOINT 15
#define DBMS_DEFAULT_PATH "/var/lib/clickhouse/"
// more aliases: https://mailman.videolan.org/pipermail/x264-devel/2014-May/010660.html
#if defined(_MSC_VER)
#define ALWAYS_INLINE __forceinline
#define NO_INLINE static __declspec(noinline)
#define MAY_ALIAS
#else
#define ALWAYS_INLINE __attribute__((__always_inline__))
#define NO_INLINE __attribute__((__noinline__))
#define MAY_ALIAS __attribute__((__may_alias__))
#endif
#define PLATFORM_NOT_SUPPORTED "The only supported platforms are x86_64 and AArch64, PowerPC (work in progress)"
#if !defined(__x86_64__) && !defined(__aarch64__) && !defined(__PPC__)
#error PLATFORM_NOT_SUPPORTED
#endif
/// Check for presence of address sanitizer
#if !defined(ADDRESS_SANITIZER)
#if defined(__has_feature)
#if __has_feature(address_sanitizer)
#define ADDRESS_SANITIZER 1
#endif
#elif defined(__SANITIZE_ADDRESS__)
#define ADDRESS_SANITIZER 1
#endif
#endif
#if !defined(THREAD_SANITIZER)
#if defined(__has_feature)
#if __has_feature(thread_sanitizer)
#define THREAD_SANITIZER 1
#endif
#elif defined(__SANITIZE_THREAD__)
#define THREAD_SANITIZER 1
#endif
#endif
#if !defined(MEMORY_SANITIZER)
#if defined(__has_feature)
#if __has_feature(memory_sanitizer)
#define MEMORY_SANITIZER 1
#endif
#elif defined(__MEMORY_SANITIZER__)
#define MEMORY_SANITIZER 1
#endif
#endif
/// TODO Strange enough, there is no way to detect UB sanitizer.
/// Explicitly allow undefined behaviour for certain functions. Use it as a function attribute.
/// It is useful in case when compiler cannot see (and exploit) it, but UBSan can.
/// Example: multiplication of signed integers with possibility of overflow when both sides are from user input.
#if defined(__clang__)
#define NO_SANITIZE_UNDEFINED __attribute__((__no_sanitize__("undefined")))
#define NO_SANITIZE_ADDRESS __attribute__((__no_sanitize__("address")))
#define NO_SANITIZE_THREAD __attribute__((__no_sanitize__("thread")))
#else
/// It does not work in GCC. GCC 7 cannot recognize this attribute and GCC 8 simply ignores it.
#define NO_SANITIZE_UNDEFINED
#define NO_SANITIZE_ADDRESS
#define NO_SANITIZE_THREAD
#endif
#if defined __GNUC__ && !defined __clang__
#define OPTIMIZE(x) __attribute__((__optimize__(x)))
#else
#define OPTIMIZE(x)
#endif
/// Marks that extra information is sent to a shard. It could be any magic numbers.
#define DBMS_DISTRIBUTED_SIGNATURE_HEADER 0xCAFEDACEull
#define DBMS_DISTRIBUTED_SIGNATURE_HEADER_OLD_FORMAT 0xCAFECABEull
#if !__has_include(<sanitizer/asan_interface.h>)
# define ASAN_UNPOISON_MEMORY_REGION(a, b)
# define ASAN_POISON_MEMORY_REGION(a, b)
#endif
/// A macro for suppressing warnings about unused variables or function results.
/// Useful for structured bindings which have no standard way to declare this.
#define UNUSED(...) (void)(__VA_ARGS__)