mirror of
https://github.com/ClickHouse/ClickHouse.git
synced 2024-12-14 02:12:21 +00:00
2063 lines
83 KiB
C++
2063 lines
83 KiB
C++
#include "Server.h"
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#include <memory>
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#include <sys/resource.h>
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#include <sys/stat.h>
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#include <sys/types.h>
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#include <sys/wait.h>
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#include <cerrno>
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#include <pwd.h>
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#include <unistd.h>
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#include <Poco/Version.h>
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#include <Poco/DirectoryIterator.h>
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#include <Poco/Net/HTTPServer.h>
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#include <Poco/Net/NetException.h>
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#include <Poco/Util/HelpFormatter.h>
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#include <Poco/Environment.h>
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#include <Common/scope_guard_safe.h>
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#include <base/defines.h>
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#include <Common/logger_useful.h>
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#include <base/phdr_cache.h>
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#include <Common/ErrorHandlers.h>
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#include <base/getMemoryAmount.h>
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#include <base/getAvailableMemoryAmount.h>
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#include <base/errnoToString.h>
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#include <base/coverage.h>
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#include <base/getFQDNOrHostName.h>
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#include <base/safeExit.h>
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#include <Common/MemoryTracker.h>
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#include <Common/ClickHouseRevision.h>
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#include <Common/DNSResolver.h>
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#include <Common/CurrentMetrics.h>
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#include <Common/Macros.h>
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#include <Common/ShellCommand.h>
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#include <Common/StringUtils/StringUtils.h>
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#include <Common/ZooKeeper/ZooKeeper.h>
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#include <Common/ZooKeeper/ZooKeeperNodeCache.h>
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#include <Common/getMultipleKeysFromConfig.h>
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#include <Common/getNumberOfPhysicalCPUCores.h>
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#include <Common/getExecutablePath.h>
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#include <Common/ProfileEvents.h>
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#include <Common/ThreadProfileEvents.h>
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#include <Common/ThreadStatus.h>
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#include <Common/getMappedArea.h>
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#include <Common/remapExecutable.h>
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#include <Common/TLDListsHolder.h>
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#include <Core/ServerUUID.h>
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#include <IO/HTTPCommon.h>
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#include <IO/ReadHelpers.h>
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#include <IO/ReadBufferFromFile.h>
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#include <IO/IOThreadPool.h>
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#include <IO/UseSSL.h>
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#include <Interpreters/AsynchronousMetrics.h>
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#include <Interpreters/DDLWorker.h>
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#include <Interpreters/DNSCacheUpdater.h>
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#include <Interpreters/DatabaseCatalog.h>
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#include <Interpreters/ExternalDictionariesLoader.h>
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#include <Interpreters/ExternalModelsLoader.h>
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#include <Interpreters/ProcessList.h>
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#include <Interpreters/loadMetadata.h>
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#include <Interpreters/UserDefinedSQLObjectsLoader.h>
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#include <Interpreters/JIT/CompiledExpressionCache.h>
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#include <Access/AccessControl.h>
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#include <Storages/StorageReplicatedMergeTree.h>
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#include <Storages/System/attachSystemTables.h>
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#include <Storages/System/attachInformationSchemaTables.h>
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#include <Storages/Cache/ExternalDataSourceCache.h>
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#include <Storages/Cache/registerRemoteFileMetadatas.h>
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#include <AggregateFunctions/registerAggregateFunctions.h>
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#include <Functions/registerFunctions.h>
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#include <TableFunctions/registerTableFunctions.h>
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#include <Formats/registerFormats.h>
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#include <Storages/registerStorages.h>
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#include <QueryPipeline/ConnectionCollector.h>
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#include <Dictionaries/registerDictionaries.h>
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#include <Disks/registerDisks.h>
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#include <Common/Config/ConfigReloader.h>
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#include <Server/HTTPHandlerFactory.h>
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#include "MetricsTransmitter.h"
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#include <Common/StatusFile.h>
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#include <Server/TCPHandlerFactory.h>
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#include <Server/TCPServer.h>
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#include <Common/SensitiveDataMasker.h>
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#include <Common/ThreadFuzzer.h>
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#include <Common/getHashOfLoadedBinary.h>
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#include <Common/filesystemHelpers.h>
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#include <Common/Elf.h>
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#include <Compression/CompressionCodecEncrypted.h>
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#include <Server/MySQLHandlerFactory.h>
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#include <Server/PostgreSQLHandlerFactory.h>
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#include <Server/CertificateReloader.h>
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#include <Server/ProtocolServerAdapter.h>
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#include <Server/HTTP/HTTPServer.h>
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#include <Interpreters/AsynchronousInsertQueue.h>
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#include <filesystem>
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#include "config_core.h"
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#include "Common/config_version.h"
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#if defined(OS_LINUX)
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# include <sys/mman.h>
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# include <sys/ptrace.h>
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# include <Common/hasLinuxCapability.h>
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#endif
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#if USE_SSL
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# include <Poco/Net/Context.h>
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# include <Poco/Net/SecureServerSocket.h>
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#endif
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#if USE_GRPC
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# include <Server/GRPCServer.h>
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#endif
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#if USE_NURAFT
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# include <Coordination/FourLetterCommand.h>
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# include <Server/KeeperTCPHandlerFactory.h>
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#endif
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#if USE_JEMALLOC
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# include <jemalloc/jemalloc.h>
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#endif
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namespace CurrentMetrics
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{
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extern const Metric Revision;
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extern const Metric VersionInteger;
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extern const Metric MemoryTracking;
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extern const Metric MaxDDLEntryID;
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extern const Metric MaxPushedDDLEntryID;
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}
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namespace ProfileEvents
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{
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extern const Event MainConfigLoads;
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}
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namespace fs = std::filesystem;
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#if USE_JEMALLOC
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static bool jemallocOptionEnabled(const char *name)
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{
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bool value;
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size_t size = sizeof(value);
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if (mallctl(name, reinterpret_cast<void *>(&value), &size, /* newp= */ nullptr, /* newlen= */ 0))
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throw Poco::SystemException("mallctl() failed");
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return value;
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}
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#else
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static bool jemallocOptionEnabled(const char *) { return 0; }
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#endif
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int mainEntryClickHouseServer(int argc, char ** argv)
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{
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DB::Server app;
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if (jemallocOptionEnabled("opt.background_thread"))
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{
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LOG_ERROR(&app.logger(),
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"jemalloc.background_thread was requested, "
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"however ClickHouse uses percpu_arena and background_thread most likely will not give any benefits, "
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"and also background_thread is not compatible with ClickHouse watchdog "
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"(that can be disabled with CLICKHOUSE_WATCHDOG_ENABLE=0)");
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}
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/// Do not fork separate process from watchdog if we attached to terminal.
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/// Otherwise it breaks gdb usage.
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/// Can be overridden by environment variable (cannot use server config at this moment).
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if (argc > 0)
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{
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const char * env_watchdog = getenv("CLICKHOUSE_WATCHDOG_ENABLE");
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if (env_watchdog)
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{
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if (0 == strcmp(env_watchdog, "1"))
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app.shouldSetupWatchdog(argv[0]);
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/// Other values disable watchdog explicitly.
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}
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else if (!isatty(STDIN_FILENO) && !isatty(STDOUT_FILENO) && !isatty(STDERR_FILENO))
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app.shouldSetupWatchdog(argv[0]);
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}
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try
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{
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return app.run(argc, argv);
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}
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catch (...)
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{
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std::cerr << DB::getCurrentExceptionMessage(true) << "\n";
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auto code = DB::getCurrentExceptionCode();
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return code ? code : 1;
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}
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}
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namespace
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{
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void setupTmpPath(Poco::Logger * log, const std::string & path)
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try
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{
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LOG_DEBUG(log, "Setting up {} to store temporary data in it", path);
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fs::create_directories(path);
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/// Clearing old temporary files.
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fs::directory_iterator dir_end;
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for (fs::directory_iterator it(path); it != dir_end; ++it)
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{
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if (it->is_regular_file() && startsWith(it->path().filename(), "tmp"))
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{
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LOG_DEBUG(log, "Removing old temporary file {}", it->path().string());
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fs::remove(it->path());
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}
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else
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LOG_DEBUG(log, "Skipped file in temporary path {}", it->path().string());
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}
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}
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catch (...)
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{
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DB::tryLogCurrentException(
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log,
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fmt::format(
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"Caught exception while setup temporary path: {}. It is ok to skip this exception as cleaning old temporary files is not "
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"necessary",
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path));
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}
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int waitServersToFinish(std::vector<DB::ProtocolServerAdapter> & servers, size_t seconds_to_wait)
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{
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const int sleep_max_ms = 1000 * seconds_to_wait;
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const int sleep_one_ms = 100;
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int sleep_current_ms = 0;
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int current_connections = 0;
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for (;;)
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{
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current_connections = 0;
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for (auto & server : servers)
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{
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server.stop();
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current_connections += server.currentConnections();
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}
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if (!current_connections)
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break;
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sleep_current_ms += sleep_one_ms;
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if (sleep_current_ms < sleep_max_ms)
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std::this_thread::sleep_for(std::chrono::milliseconds(sleep_one_ms));
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else
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break;
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}
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return current_connections;
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}
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}
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namespace DB
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{
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namespace ErrorCodes
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{
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extern const int NO_ELEMENTS_IN_CONFIG;
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extern const int SUPPORT_IS_DISABLED;
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extern const int ARGUMENT_OUT_OF_BOUND;
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extern const int EXCESSIVE_ELEMENT_IN_CONFIG;
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extern const int INVALID_CONFIG_PARAMETER;
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extern const int SYSTEM_ERROR;
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extern const int FAILED_TO_GETPWUID;
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extern const int MISMATCHING_USERS_FOR_PROCESS_AND_DATA;
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extern const int NETWORK_ERROR;
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extern const int CORRUPTED_DATA;
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}
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static std::string getCanonicalPath(std::string && path)
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{
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Poco::trimInPlace(path);
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if (path.empty())
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throw Exception("path configuration parameter is empty", ErrorCodes::INVALID_CONFIG_PARAMETER);
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if (path.back() != '/')
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path += '/';
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return std::move(path);
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}
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static std::string getUserName(uid_t user_id)
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{
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/// Try to convert user id into user name.
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auto buffer_size = sysconf(_SC_GETPW_R_SIZE_MAX);
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if (buffer_size <= 0)
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buffer_size = 1024;
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std::string buffer;
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buffer.reserve(buffer_size);
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struct passwd passwd_entry;
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struct passwd * result = nullptr;
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const auto error = getpwuid_r(user_id, &passwd_entry, buffer.data(), buffer_size, &result);
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if (error)
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throwFromErrno("Failed to find user name for " + toString(user_id), ErrorCodes::FAILED_TO_GETPWUID, error);
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else if (result)
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return result->pw_name;
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return toString(user_id);
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}
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Poco::Net::SocketAddress makeSocketAddress(const std::string & host, UInt16 port, Poco::Logger * log)
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{
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Poco::Net::SocketAddress socket_address;
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try
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{
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socket_address = Poco::Net::SocketAddress(host, port);
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}
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catch (const Poco::Net::DNSException & e)
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{
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const auto code = e.code();
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if (code == EAI_FAMILY
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#if defined(EAI_ADDRFAMILY)
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|| code == EAI_ADDRFAMILY
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#endif
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)
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{
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LOG_ERROR(log, "Cannot resolve listen_host ({}), error {}: {}. "
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"If it is an IPv6 address and your host has disabled IPv6, then consider to "
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"specify IPv4 address to listen in <listen_host> element of configuration "
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"file. Example: <listen_host>0.0.0.0</listen_host>",
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host, e.code(), e.message());
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}
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throw;
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}
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return socket_address;
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}
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Poco::Net::SocketAddress Server::socketBindListen(
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const Poco::Util::AbstractConfiguration & config,
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Poco::Net::ServerSocket & socket,
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const std::string & host,
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UInt16 port,
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[[maybe_unused]] bool secure) const
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{
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auto address = makeSocketAddress(host, port, &logger());
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#if !defined(POCO_CLICKHOUSE_PATCH) || POCO_VERSION < 0x01090100
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if (secure)
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/// Bug in old (<1.9.1) poco, listen() after bind() with reusePort param will fail because have no implementation in SecureServerSocketImpl
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/// https://github.com/pocoproject/poco/pull/2257
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socket.bind(address, /* reuseAddress = */ true);
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else
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#endif
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#if POCO_VERSION < 0x01080000
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socket.bind(address, /* reuseAddress = */ true);
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#else
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socket.bind(address, /* reuseAddress = */ true, /* reusePort = */ config.getBool("listen_reuse_port", false));
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#endif
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/// If caller requests any available port from the OS, discover it after binding.
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if (port == 0)
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{
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address = socket.address();
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LOG_DEBUG(&logger(), "Requested any available port (port == 0), actual port is {:d}", address.port());
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}
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socket.listen(/* backlog = */ config.getUInt("listen_backlog", 4096));
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return address;
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}
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std::vector<std::string> getListenHosts(const Poco::Util::AbstractConfiguration & config)
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{
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auto listen_hosts = DB::getMultipleValuesFromConfig(config, "", "listen_host");
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if (listen_hosts.empty())
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{
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listen_hosts.emplace_back("::1");
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listen_hosts.emplace_back("127.0.0.1");
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}
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return listen_hosts;
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}
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bool getListenTry(const Poco::Util::AbstractConfiguration & config)
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{
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bool listen_try = config.getBool("listen_try", false);
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if (!listen_try)
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listen_try = DB::getMultipleValuesFromConfig(config, "", "listen_host").empty();
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return listen_try;
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}
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void Server::createServer(
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Poco::Util::AbstractConfiguration & config,
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const std::string & listen_host,
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const char * port_name,
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bool listen_try,
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bool start_server,
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std::vector<ProtocolServerAdapter> & servers,
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CreateServerFunc && func) const
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{
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/// For testing purposes, user may omit tcp_port or http_port or https_port in configuration file.
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if (config.getString(port_name, "").empty())
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return;
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/// If we already have an active server for this listen_host/port_name, don't create it again
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for (const auto & server : servers)
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{
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if (!server.isStopping() && server.getListenHost() == listen_host && server.getPortName() == port_name)
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return;
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}
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auto port = config.getInt(port_name);
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try
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{
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servers.push_back(func(port));
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if (start_server)
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{
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servers.back().start();
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LOG_INFO(&logger(), "Listening for {}", servers.back().getDescription());
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}
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global_context->registerServerPort(port_name, port);
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}
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catch (const Poco::Exception &)
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{
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std::string message = "Listen [" + listen_host + "]:" + std::to_string(port) + " failed: " + getCurrentExceptionMessage(false);
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if (listen_try)
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{
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LOG_WARNING(&logger(), "{}. If it is an IPv6 or IPv4 address and your host has disabled IPv6 or IPv4, then consider to "
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"specify not disabled IPv4 or IPv6 address to listen in <listen_host> element of configuration "
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"file. Example for disabled IPv6: <listen_host>0.0.0.0</listen_host> ."
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" Example for disabled IPv4: <listen_host>::</listen_host>",
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message);
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}
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else
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{
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throw Exception{message, ErrorCodes::NETWORK_ERROR};
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}
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}
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}
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void Server::uninitialize()
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{
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logger().information("shutting down");
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BaseDaemon::uninitialize();
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}
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int Server::run()
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{
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if (config().hasOption("help"))
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{
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Poco::Util::HelpFormatter help_formatter(Server::options());
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auto header_str = fmt::format("{} [OPTION] [-- [ARG]...]\n"
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"positional arguments can be used to rewrite config.xml properties, for example, --http_port=8010",
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commandName());
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help_formatter.setHeader(header_str);
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help_formatter.format(std::cout);
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return 0;
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}
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if (config().hasOption("version"))
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{
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std::cout << DBMS_NAME << " server version " << VERSION_STRING << VERSION_OFFICIAL << "." << std::endl;
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return 0;
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}
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return Application::run(); // NOLINT
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}
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void Server::initialize(Poco::Util::Application & self)
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{
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BaseDaemon::initialize(self);
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logger().information("starting up");
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LOG_INFO(&logger(), "OS name: {}, version: {}, architecture: {}",
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Poco::Environment::osName(),
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Poco::Environment::osVersion(),
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Poco::Environment::osArchitecture());
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}
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std::string Server::getDefaultCorePath() const
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{
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return getCanonicalPath(config().getString("path", DBMS_DEFAULT_PATH)) + "cores";
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}
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void Server::defineOptions(Poco::Util::OptionSet & options)
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{
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options.addOption(
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Poco::Util::Option("help", "h", "show help and exit")
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.required(false)
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.repeatable(false)
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.binding("help"));
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options.addOption(
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Poco::Util::Option("version", "V", "show version and exit")
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.required(false)
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.repeatable(false)
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.binding("version"));
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BaseDaemon::defineOptions(options);
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}
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void checkForUsersNotInMainConfig(
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const Poco::Util::AbstractConfiguration & config,
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const std::string & config_path,
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const std::string & users_config_path,
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Poco::Logger * log)
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{
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if (config.getBool("skip_check_for_incorrect_settings", false))
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return;
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if (config.has("users") || config.has("profiles") || config.has("quotas"))
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{
|
|
/// We cannot throw exception here, because we have support for obsolete 'conf.d' directory
|
|
/// (that does not correspond to config.d or users.d) but substitute configuration to both of them.
|
|
|
|
LOG_ERROR(log, "The <users>, <profiles> and <quotas> elements should be located in users config file: {} not in main config {}."
|
|
" Also note that you should place configuration changes to the appropriate *.d directory like 'users.d'.",
|
|
users_config_path, config_path);
|
|
}
|
|
}
|
|
|
|
/// Unused in other builds
|
|
#if defined(OS_LINUX)
|
|
static String readString(const String & path)
|
|
{
|
|
ReadBufferFromFile in(path);
|
|
String contents;
|
|
readStringUntilEOF(contents, in);
|
|
return contents;
|
|
}
|
|
|
|
static int readNumber(const String & path)
|
|
{
|
|
ReadBufferFromFile in(path);
|
|
int result;
|
|
readText(result, in);
|
|
return result;
|
|
}
|
|
|
|
#endif
|
|
|
|
static void sanityChecks(Server & server)
|
|
{
|
|
std::string data_path = getCanonicalPath(server.config().getString("path", DBMS_DEFAULT_PATH));
|
|
std::string logs_path = server.config().getString("logger.log", "");
|
|
|
|
if (server.logger().is(Poco::Message::PRIO_TEST))
|
|
server.context()->addWarningMessage("Server logging level is set to 'test' and performance is degraded. This cannot be used in production.");
|
|
|
|
#if defined(OS_LINUX)
|
|
try
|
|
{
|
|
const char * filename = "/sys/devices/system/clocksource/clocksource0/current_clocksource";
|
|
if (readString(filename).find("tsc") == std::string::npos)
|
|
server.context()->addWarningMessage("Linux is not using a fast TSC clock source. Performance can be degraded. Check " + String(filename));
|
|
}
|
|
catch (...)
|
|
{
|
|
}
|
|
|
|
try
|
|
{
|
|
const char * filename = "/proc/sys/vm/overcommit_memory";
|
|
if (readNumber(filename) == 2)
|
|
server.context()->addWarningMessage("Linux memory overcommit is disabled. Check " + String(filename));
|
|
}
|
|
catch (...)
|
|
{
|
|
}
|
|
|
|
try
|
|
{
|
|
const char * filename = "/sys/kernel/mm/transparent_hugepage/enabled";
|
|
if (readString(filename).find("[always]") != std::string::npos)
|
|
server.context()->addWarningMessage("Linux transparent hugepages are set to \"always\". Check " + String(filename));
|
|
}
|
|
catch (...)
|
|
{
|
|
}
|
|
|
|
try
|
|
{
|
|
const char * filename = "/proc/sys/kernel/pid_max";
|
|
if (readNumber(filename) < 30000)
|
|
server.context()->addWarningMessage("Linux max PID is too low. Check " + String(filename));
|
|
}
|
|
catch (...)
|
|
{
|
|
}
|
|
|
|
try
|
|
{
|
|
const char * filename = "/proc/sys/kernel/threads-max";
|
|
if (readNumber(filename) < 30000)
|
|
server.context()->addWarningMessage("Linux threads max count is too low. Check " + String(filename));
|
|
}
|
|
catch (...)
|
|
{
|
|
}
|
|
|
|
std::string dev_id = getBlockDeviceId(data_path);
|
|
if (getBlockDeviceType(dev_id) == BlockDeviceType::ROT && getBlockDeviceReadAheadBytes(dev_id) == 0)
|
|
server.context()->addWarningMessage("Rotational disk with disabled readahead is in use. Performance can be degraded. Used for data: " + String(data_path));
|
|
#endif
|
|
|
|
try
|
|
{
|
|
if (getAvailableMemoryAmount() < (2l << 30))
|
|
server.context()->addWarningMessage("Available memory at server startup is too low (2GiB).");
|
|
|
|
if (!enoughSpaceInDirectory(data_path, 1ull << 30))
|
|
server.context()->addWarningMessage("Available disk space for data at server startup is too low (1GiB): " + String(data_path));
|
|
|
|
if (!logs_path.empty())
|
|
{
|
|
auto logs_parent = fs::path(logs_path).parent_path();
|
|
if (!enoughSpaceInDirectory(logs_parent, 1ull << 30))
|
|
server.context()->addWarningMessage("Available disk space for logs at server startup is too low (1GiB): " + String(logs_parent));
|
|
}
|
|
}
|
|
catch (...)
|
|
{
|
|
}
|
|
}
|
|
|
|
int Server::main(const std::vector<std::string> & /*args*/)
|
|
{
|
|
Poco::Logger * log = &logger();
|
|
|
|
UseSSL use_ssl;
|
|
|
|
MainThreadStatus::getInstance();
|
|
|
|
registerFunctions();
|
|
registerAggregateFunctions();
|
|
registerTableFunctions();
|
|
registerStorages();
|
|
registerDictionaries();
|
|
registerDisks();
|
|
registerFormats();
|
|
registerRemoteFileMetadatas();
|
|
|
|
CurrentMetrics::set(CurrentMetrics::Revision, ClickHouseRevision::getVersionRevision());
|
|
CurrentMetrics::set(CurrentMetrics::VersionInteger, ClickHouseRevision::getVersionInteger());
|
|
|
|
/** Context contains all that query execution is dependent:
|
|
* settings, available functions, data types, aggregate functions, databases, ...
|
|
*/
|
|
auto shared_context = Context::createShared();
|
|
global_context = Context::createGlobal(shared_context.get());
|
|
|
|
global_context->makeGlobalContext();
|
|
global_context->setApplicationType(Context::ApplicationType::SERVER);
|
|
|
|
#if !defined(NDEBUG) || !defined(__OPTIMIZE__)
|
|
global_context->addWarningMessage("Server was built in debug mode. It will work slowly.");
|
|
#endif
|
|
|
|
if (ThreadFuzzer::instance().isEffective())
|
|
global_context->addWarningMessage("ThreadFuzzer is enabled. Application will run slowly and unstable.");
|
|
|
|
#if defined(SANITIZER)
|
|
global_context->addWarningMessage("Server was built with sanitizer. It will work slowly.");
|
|
#endif
|
|
|
|
sanityChecks(*this);
|
|
|
|
// Initialize global thread pool. Do it before we fetch configs from zookeeper
|
|
// nodes (`from_zk`), because ZooKeeper interface uses the pool. We will
|
|
// ignore `max_thread_pool_size` in configs we fetch from ZK, but oh well.
|
|
GlobalThreadPool::initialize(
|
|
config().getUInt("max_thread_pool_size", 10000),
|
|
config().getUInt("max_thread_pool_free_size", 1000),
|
|
config().getUInt("thread_pool_queue_size", 10000)
|
|
);
|
|
|
|
IOThreadPool::initialize(
|
|
config().getUInt("max_io_thread_pool_size", 100),
|
|
config().getUInt("max_io_thread_pool_free_size", 0),
|
|
config().getUInt("io_thread_pool_queue_size", 10000));
|
|
|
|
/// Initialize global local cache for remote filesystem.
|
|
if (config().has("local_cache_for_remote_fs"))
|
|
{
|
|
bool enable = config().getBool("local_cache_for_remote_fs.enable", false);
|
|
if (enable)
|
|
{
|
|
String root_dir = config().getString("local_cache_for_remote_fs.root_dir");
|
|
UInt64 limit_size = config().getUInt64("local_cache_for_remote_fs.limit_size");
|
|
UInt64 bytes_read_before_flush
|
|
= config().getUInt64("local_cache_for_remote_fs.bytes_read_before_flush", DBMS_DEFAULT_BUFFER_SIZE);
|
|
ExternalDataSourceCache::instance().initOnce(global_context, root_dir, limit_size, bytes_read_before_flush);
|
|
}
|
|
}
|
|
|
|
Poco::ThreadPool server_pool(3, config().getUInt("max_connections", 1024));
|
|
std::mutex servers_lock;
|
|
std::vector<ProtocolServerAdapter> servers;
|
|
std::vector<ProtocolServerAdapter> servers_to_start_before_tables;
|
|
/// This object will periodically calculate some metrics.
|
|
AsynchronousMetrics async_metrics(
|
|
global_context, config().getUInt("asynchronous_metrics_update_period_s", 1),
|
|
[&]() -> std::vector<ProtocolServerMetrics>
|
|
{
|
|
std::vector<ProtocolServerMetrics> metrics;
|
|
metrics.reserve(servers_to_start_before_tables.size());
|
|
for (const auto & server : servers_to_start_before_tables)
|
|
metrics.emplace_back(ProtocolServerMetrics{server.getPortName(), server.currentThreads()});
|
|
|
|
std::lock_guard lock(servers_lock);
|
|
for (const auto & server : servers)
|
|
metrics.emplace_back(ProtocolServerMetrics{server.getPortName(), server.currentThreads()});
|
|
return metrics;
|
|
}
|
|
);
|
|
|
|
ConnectionCollector::init(global_context, config().getUInt("max_threads_for_connection_collector", 10));
|
|
|
|
bool has_zookeeper = config().has("zookeeper");
|
|
|
|
zkutil::ZooKeeperNodeCache main_config_zk_node_cache([&] { return global_context->getZooKeeper(); });
|
|
zkutil::EventPtr main_config_zk_changed_event = std::make_shared<Poco::Event>();
|
|
if (loaded_config.has_zk_includes)
|
|
{
|
|
auto old_configuration = loaded_config.configuration;
|
|
ConfigProcessor config_processor(config_path);
|
|
loaded_config = config_processor.loadConfigWithZooKeeperIncludes(
|
|
main_config_zk_node_cache, main_config_zk_changed_event, /* fallback_to_preprocessed = */ true);
|
|
config_processor.savePreprocessedConfig(loaded_config, config().getString("path", DBMS_DEFAULT_PATH));
|
|
config().removeConfiguration(old_configuration.get());
|
|
config().add(loaded_config.configuration.duplicate(), PRIO_DEFAULT, false);
|
|
}
|
|
|
|
Settings::checkNoSettingNamesAtTopLevel(config(), config_path);
|
|
|
|
const auto memory_amount = getMemoryAmount();
|
|
|
|
#if defined(OS_LINUX)
|
|
std::string executable_path = getExecutablePath();
|
|
|
|
if (!executable_path.empty())
|
|
{
|
|
/// Integrity check based on checksum of the executable code.
|
|
/// Note: it is not intended to protect from malicious party,
|
|
/// because the reference checksum can be easily modified as well.
|
|
/// And we don't involve asymmetric encryption with PKI yet.
|
|
/// It's only intended to protect from faulty hardware.
|
|
/// Note: it is only based on machine code.
|
|
/// But there are other sections of the binary (e.g. exception handling tables)
|
|
/// that are interpreted (not executed) but can alter the behaviour of the program as well.
|
|
|
|
/// Please keep the below log messages in-sync with the ones in daemon/BaseDaemon.cpp
|
|
|
|
String calculated_binary_hash = getHashOfLoadedBinaryHex();
|
|
|
|
if (stored_binary_hash.empty())
|
|
{
|
|
LOG_WARNING(log, "Integrity check of the executable skipped because the reference checksum could not be read."
|
|
" (calculated checksum: {})", calculated_binary_hash);
|
|
}
|
|
else if (calculated_binary_hash == stored_binary_hash)
|
|
{
|
|
LOG_INFO(log, "Integrity check of the executable successfully passed (checksum: {})", calculated_binary_hash);
|
|
}
|
|
else
|
|
{
|
|
/// If program is run under debugger, ptrace will fail.
|
|
if (ptrace(PTRACE_TRACEME, 0, nullptr, nullptr) == -1)
|
|
{
|
|
/// Program is run under debugger. Modification of it's binary image is ok for breakpoints.
|
|
global_context->addWarningMessage(
|
|
fmt::format("Server is run under debugger and its binary image is modified (most likely with breakpoints).",
|
|
calculated_binary_hash)
|
|
);
|
|
}
|
|
else
|
|
{
|
|
throw Exception(ErrorCodes::CORRUPTED_DATA,
|
|
"Calculated checksum of the executable ({0}) does not correspond"
|
|
" to the reference checksum stored in the executable ({1})."
|
|
" This may indicate one of the following:"
|
|
" - the executable {2} was changed just after startup;"
|
|
" - the executable {2} was corrupted on disk due to faulty hardware;"
|
|
" - the loaded executable was corrupted in memory due to faulty hardware;"
|
|
" - the file {2} was intentionally modified;"
|
|
" - a logical error in the code."
|
|
, calculated_binary_hash, stored_binary_hash, executable_path);
|
|
}
|
|
}
|
|
}
|
|
else
|
|
executable_path = "/usr/bin/clickhouse"; /// It is used for information messages.
|
|
|
|
/// After full config loaded
|
|
{
|
|
if (config().getBool("remap_executable", false))
|
|
{
|
|
LOG_DEBUG(log, "Will remap executable in memory.");
|
|
size_t size = remapExecutable();
|
|
LOG_DEBUG(log, "The code ({}) in memory has been successfully remapped.", ReadableSize(size));
|
|
}
|
|
|
|
if (config().getBool("mlock_executable", false))
|
|
{
|
|
if (hasLinuxCapability(CAP_IPC_LOCK))
|
|
{
|
|
try
|
|
{
|
|
/// Get the memory area with (current) code segment.
|
|
/// It's better to lock only the code segment instead of calling "mlockall",
|
|
/// because otherwise debug info will be also locked in memory, and it can be huge.
|
|
auto [addr, len] = getMappedArea(reinterpret_cast<void *>(mainEntryClickHouseServer));
|
|
|
|
LOG_TRACE(log, "Will do mlock to prevent executable memory from being paged out. It may take a few seconds.");
|
|
if (0 != mlock(addr, len))
|
|
LOG_WARNING(log, "Failed mlock: {}", errnoToString(ErrorCodes::SYSTEM_ERROR));
|
|
else
|
|
LOG_TRACE(log, "The memory map of clickhouse executable has been mlock'ed, total {}", ReadableSize(len));
|
|
}
|
|
catch (...)
|
|
{
|
|
LOG_WARNING(log, "Cannot mlock: {}", getCurrentExceptionMessage(false));
|
|
}
|
|
}
|
|
else
|
|
{
|
|
LOG_INFO(log, "It looks like the process has no CAP_IPC_LOCK capability, binary mlock will be disabled."
|
|
" It could happen due to incorrect ClickHouse package installation."
|
|
" You could resolve the problem manually with 'sudo setcap cap_ipc_lock=+ep {}'."
|
|
" Note that it will not work on 'nosuid' mounted filesystems.", executable_path);
|
|
}
|
|
}
|
|
}
|
|
#endif
|
|
|
|
global_context->setRemoteHostFilter(config());
|
|
|
|
std::string path_str = getCanonicalPath(config().getString("path", DBMS_DEFAULT_PATH));
|
|
fs::path path = path_str;
|
|
std::string default_database = config().getString("default_database", "default");
|
|
|
|
/// Check that the process user id matches the owner of the data.
|
|
const auto effective_user_id = geteuid();
|
|
struct stat statbuf;
|
|
if (stat(path_str.c_str(), &statbuf) == 0 && effective_user_id != statbuf.st_uid)
|
|
{
|
|
const auto effective_user = getUserName(effective_user_id);
|
|
const auto data_owner = getUserName(statbuf.st_uid);
|
|
std::string message = "Effective user of the process (" + effective_user +
|
|
") does not match the owner of the data (" + data_owner + ").";
|
|
if (effective_user_id == 0)
|
|
{
|
|
message += " Run under 'sudo -u " + data_owner + "'.";
|
|
throw Exception(message, ErrorCodes::MISMATCHING_USERS_FOR_PROCESS_AND_DATA);
|
|
}
|
|
else
|
|
{
|
|
global_context->addWarningMessage(message);
|
|
}
|
|
}
|
|
|
|
global_context->setPath(path_str);
|
|
|
|
StatusFile status{path / "status", StatusFile::write_full_info};
|
|
|
|
DB::ServerUUID::load(path / "uuid", log);
|
|
|
|
/// Try to increase limit on number of open files.
|
|
{
|
|
rlimit rlim;
|
|
if (getrlimit(RLIMIT_NOFILE, &rlim))
|
|
throw Poco::Exception("Cannot getrlimit");
|
|
|
|
if (rlim.rlim_cur == rlim.rlim_max)
|
|
{
|
|
LOG_DEBUG(log, "rlimit on number of file descriptors is {}", rlim.rlim_cur);
|
|
}
|
|
else
|
|
{
|
|
rlim_t old = rlim.rlim_cur;
|
|
rlim.rlim_cur = config().getUInt("max_open_files", rlim.rlim_max);
|
|
int rc = setrlimit(RLIMIT_NOFILE, &rlim);
|
|
if (rc != 0)
|
|
LOG_WARNING(log, "Cannot set max number of file descriptors to {}. Try to specify max_open_files according to your system limits. error: {}", rlim.rlim_cur, strerror(errno));
|
|
else
|
|
LOG_DEBUG(log, "Set max number of file descriptors to {} (was {}).", rlim.rlim_cur, old);
|
|
}
|
|
}
|
|
|
|
/// Try to increase limit on number of threads.
|
|
{
|
|
rlimit rlim;
|
|
if (getrlimit(RLIMIT_NPROC, &rlim))
|
|
throw Poco::Exception("Cannot getrlimit");
|
|
|
|
if (rlim.rlim_cur == rlim.rlim_max)
|
|
{
|
|
LOG_DEBUG(log, "rlimit on number of threads is {}", rlim.rlim_cur);
|
|
}
|
|
else
|
|
{
|
|
rlim_t old = rlim.rlim_cur;
|
|
rlim.rlim_cur = rlim.rlim_max;
|
|
int rc = setrlimit(RLIMIT_NPROC, &rlim);
|
|
if (rc != 0)
|
|
{
|
|
LOG_WARNING(log, "Cannot set max number of threads to {}. error: {}", rlim.rlim_cur, strerror(errno));
|
|
rlim.rlim_cur = old;
|
|
}
|
|
else
|
|
{
|
|
LOG_DEBUG(log, "Set max number of threads to {} (was {}).", rlim.rlim_cur, old);
|
|
}
|
|
}
|
|
|
|
if (rlim.rlim_cur < 30000)
|
|
{
|
|
global_context->addWarningMessage("Maximum number of threads is lower than 30000. There could be problems with handling a lot of simultaneous queries.");
|
|
}
|
|
}
|
|
|
|
static ServerErrorHandler error_handler;
|
|
Poco::ErrorHandler::set(&error_handler);
|
|
|
|
/// Initialize DateLUT early, to not interfere with running time of first query.
|
|
LOG_DEBUG(log, "Initializing DateLUT.");
|
|
DateLUT::instance();
|
|
LOG_TRACE(log, "Initialized DateLUT with time zone '{}'.", DateLUT::instance().getTimeZone());
|
|
|
|
/// Storage with temporary data for processing of heavy queries.
|
|
{
|
|
std::string tmp_path = config().getString("tmp_path", path / "tmp/");
|
|
std::string tmp_policy = config().getString("tmp_policy", "");
|
|
const VolumePtr & volume = global_context->setTemporaryStorage(tmp_path, tmp_policy);
|
|
for (const DiskPtr & disk : volume->getDisks())
|
|
setupTmpPath(log, disk->getPath());
|
|
}
|
|
|
|
/** Directory with 'flags': files indicating temporary settings for the server set by system administrator.
|
|
* Flags may be cleared automatically after being applied by the server.
|
|
* Examples: do repair of local data; clone all replicated tables from replica.
|
|
*/
|
|
{
|
|
auto flags_path = path / "flags/";
|
|
fs::create_directories(flags_path);
|
|
global_context->setFlagsPath(flags_path);
|
|
}
|
|
|
|
/** Directory with user provided files that are usable by 'file' table function.
|
|
*/
|
|
{
|
|
|
|
std::string user_files_path = config().getString("user_files_path", path / "user_files/");
|
|
global_context->setUserFilesPath(user_files_path);
|
|
fs::create_directories(user_files_path);
|
|
}
|
|
|
|
{
|
|
std::string dictionaries_lib_path = config().getString("dictionaries_lib_path", path / "dictionaries_lib/");
|
|
global_context->setDictionariesLibPath(dictionaries_lib_path);
|
|
fs::create_directories(dictionaries_lib_path);
|
|
}
|
|
|
|
{
|
|
std::string user_scripts_path = config().getString("user_scripts_path", path / "user_scripts/");
|
|
global_context->setUserScriptsPath(user_scripts_path);
|
|
fs::create_directories(user_scripts_path);
|
|
}
|
|
|
|
{
|
|
std::string user_defined_path = config().getString("user_defined_path", path / "user_defined/");
|
|
global_context->setUserDefinedPath(user_defined_path);
|
|
fs::create_directories(user_defined_path);
|
|
}
|
|
|
|
/// top_level_domains_lists
|
|
{
|
|
const std::string & top_level_domains_path = config().getString("top_level_domains_path", path / "top_level_domains/");
|
|
TLDListsHolder::getInstance().parseConfig(fs::path(top_level_domains_path) / "", config());
|
|
}
|
|
|
|
{
|
|
fs::create_directories(path / "data/");
|
|
fs::create_directories(path / "metadata/");
|
|
|
|
/// Directory with metadata of tables, which was marked as dropped by Atomic database
|
|
fs::create_directories(path / "metadata_dropped/");
|
|
}
|
|
|
|
#if USE_ROCKSDB
|
|
/// Initialize merge tree metadata cache
|
|
if (config().has("merge_tree_metadata_cache"))
|
|
{
|
|
fs::create_directories(path / "rocksdb/");
|
|
size_t size = config().getUInt64("merge_tree_metadata_cache.lru_cache_size", 256 << 20);
|
|
bool continue_if_corrupted = config().getBool("merge_tree_metadata_cache.continue_if_corrupted", false);
|
|
try
|
|
{
|
|
LOG_DEBUG(
|
|
log, "Initiailizing merge tree metadata cache lru_cache_size:{} continue_if_corrupted:{}", size, continue_if_corrupted);
|
|
global_context->initializeMergeTreeMetadataCache(path_str + "/" + "rocksdb", size);
|
|
}
|
|
catch (...)
|
|
{
|
|
if (continue_if_corrupted)
|
|
{
|
|
/// Rename rocksdb directory and reinitialize merge tree metadata cache
|
|
time_t now = time(nullptr);
|
|
fs::rename(path / "rocksdb", path / ("rocksdb.old." + std::to_string(now)));
|
|
global_context->initializeMergeTreeMetadataCache(path_str + "/" + "rocksdb", size);
|
|
}
|
|
else
|
|
{
|
|
throw;
|
|
}
|
|
}
|
|
}
|
|
#endif
|
|
|
|
if (config().has("interserver_http_port") && config().has("interserver_https_port"))
|
|
throw Exception("Both http and https interserver ports are specified", ErrorCodes::EXCESSIVE_ELEMENT_IN_CONFIG);
|
|
|
|
static const auto interserver_tags =
|
|
{
|
|
std::make_tuple("interserver_http_host", "interserver_http_port", "http"),
|
|
std::make_tuple("interserver_https_host", "interserver_https_port", "https")
|
|
};
|
|
|
|
for (auto [host_tag, port_tag, scheme] : interserver_tags)
|
|
{
|
|
if (config().has(port_tag))
|
|
{
|
|
String this_host = config().getString(host_tag, "");
|
|
|
|
if (this_host.empty())
|
|
{
|
|
this_host = getFQDNOrHostName();
|
|
LOG_DEBUG(log, "Configuration parameter '{}' doesn't exist or exists and empty. Will use '{}' as replica host.",
|
|
host_tag, this_host);
|
|
}
|
|
|
|
String port_str = config().getString(port_tag);
|
|
int port = parse<int>(port_str);
|
|
|
|
if (port < 0 || port > 0xFFFF)
|
|
throw Exception("Out of range '" + String(port_tag) + "': " + toString(port), ErrorCodes::ARGUMENT_OUT_OF_BOUND);
|
|
|
|
global_context->setInterserverIOAddress(this_host, port);
|
|
global_context->setInterserverScheme(scheme);
|
|
}
|
|
}
|
|
|
|
LOG_DEBUG(log, "Initiailizing interserver credentials.");
|
|
global_context->updateInterserverCredentials(config());
|
|
|
|
if (config().has("macros"))
|
|
global_context->setMacros(std::make_unique<Macros>(config(), "macros", log));
|
|
|
|
/// Initialize main config reloader.
|
|
std::string include_from_path = config().getString("include_from", "/etc/metrika.xml");
|
|
|
|
if (config().has("query_masking_rules"))
|
|
{
|
|
SensitiveDataMasker::setInstance(std::make_unique<SensitiveDataMasker>(config(), "query_masking_rules"));
|
|
}
|
|
|
|
auto main_config_reloader = std::make_unique<ConfigReloader>(
|
|
config_path,
|
|
include_from_path,
|
|
config().getString("path", ""),
|
|
std::move(main_config_zk_node_cache),
|
|
main_config_zk_changed_event,
|
|
[&](ConfigurationPtr config, bool initial_loading)
|
|
{
|
|
Settings::checkNoSettingNamesAtTopLevel(*config, config_path);
|
|
|
|
/// Limit on total memory usage
|
|
size_t max_server_memory_usage = config->getUInt64("max_server_memory_usage", 0);
|
|
|
|
double max_server_memory_usage_to_ram_ratio = config->getDouble("max_server_memory_usage_to_ram_ratio", 0.9);
|
|
size_t default_max_server_memory_usage = memory_amount * max_server_memory_usage_to_ram_ratio;
|
|
|
|
if (max_server_memory_usage == 0)
|
|
{
|
|
max_server_memory_usage = default_max_server_memory_usage;
|
|
LOG_INFO(log, "Setting max_server_memory_usage was set to {}"
|
|
" ({} available * {:.2f} max_server_memory_usage_to_ram_ratio)",
|
|
formatReadableSizeWithBinarySuffix(max_server_memory_usage),
|
|
formatReadableSizeWithBinarySuffix(memory_amount),
|
|
max_server_memory_usage_to_ram_ratio);
|
|
}
|
|
else if (max_server_memory_usage > default_max_server_memory_usage)
|
|
{
|
|
max_server_memory_usage = default_max_server_memory_usage;
|
|
LOG_INFO(log, "Setting max_server_memory_usage was lowered to {}"
|
|
" because the system has low amount of memory. The amount was"
|
|
" calculated as {} available"
|
|
" * {:.2f} max_server_memory_usage_to_ram_ratio",
|
|
formatReadableSizeWithBinarySuffix(max_server_memory_usage),
|
|
formatReadableSizeWithBinarySuffix(memory_amount),
|
|
max_server_memory_usage_to_ram_ratio);
|
|
}
|
|
|
|
total_memory_tracker.setHardLimit(max_server_memory_usage);
|
|
total_memory_tracker.setDescription("(total)");
|
|
total_memory_tracker.setMetric(CurrentMetrics::MemoryTracking);
|
|
|
|
auto * global_overcommit_tracker = global_context->getGlobalOvercommitTracker();
|
|
total_memory_tracker.setOvercommitTracker(global_overcommit_tracker);
|
|
|
|
// FIXME logging-related things need synchronization -- see the 'Logger * log' saved
|
|
// in a lot of places. For now, disable updating log configuration without server restart.
|
|
//setTextLog(global_context->getTextLog());
|
|
updateLevels(*config, logger());
|
|
global_context->setClustersConfig(config, has_zookeeper);
|
|
global_context->setMacros(std::make_unique<Macros>(*config, "macros", log));
|
|
global_context->setExternalAuthenticatorsConfig(*config);
|
|
|
|
global_context->loadOrReloadDictionaries(*config);
|
|
global_context->loadOrReloadModels(*config);
|
|
global_context->loadOrReloadUserDefinedExecutableFunctions(*config);
|
|
|
|
global_context->setRemoteHostFilter(*config);
|
|
|
|
/// Setup protection to avoid accidental DROP for big tables (that are greater than 50 GB by default)
|
|
if (config->has("max_table_size_to_drop"))
|
|
global_context->setMaxTableSizeToDrop(config->getUInt64("max_table_size_to_drop"));
|
|
|
|
if (config->has("max_partition_size_to_drop"))
|
|
global_context->setMaxPartitionSizeToDrop(config->getUInt64("max_partition_size_to_drop"));
|
|
|
|
if (config->has("max_concurrent_queries"))
|
|
global_context->getProcessList().setMaxSize(config->getInt("max_concurrent_queries", 0));
|
|
|
|
if (config->has("max_concurrent_insert_queries"))
|
|
global_context->getProcessList().setMaxInsertQueriesAmount(config->getInt("max_concurrent_insert_queries", 0));
|
|
|
|
if (config->has("max_concurrent_select_queries"))
|
|
global_context->getProcessList().setMaxSelectQueriesAmount(config->getInt("max_concurrent_select_queries", 0));
|
|
|
|
if (config->has("keeper_server"))
|
|
global_context->updateKeeperConfiguration(*config);
|
|
|
|
/// Reload the number of threads for global pools.
|
|
/// Note: If you specified it in the top level config (not it config of default profile)
|
|
/// then ClickHouse will use it exactly.
|
|
/// This is done for backward compatibility.
|
|
if (global_context->areBackgroundExecutorsInitialized() && (config->has("background_pool_size") || config->has("background_merges_mutations_concurrency_ratio")))
|
|
{
|
|
auto new_pool_size = config->getUInt64("background_pool_size", 16);
|
|
auto new_ratio = config->getUInt64("background_merges_mutations_concurrency_ratio", 2);
|
|
global_context->getMergeMutateExecutor()->increaseThreadsAndMaxTasksCount(new_pool_size, new_pool_size * new_ratio);
|
|
}
|
|
|
|
if (global_context->areBackgroundExecutorsInitialized() && config->has("background_move_pool_size"))
|
|
{
|
|
auto new_pool_size = config->getUInt64("background_move_pool_size");
|
|
global_context->getMovesExecutor()->increaseThreadsAndMaxTasksCount(new_pool_size, new_pool_size);
|
|
}
|
|
|
|
if (global_context->areBackgroundExecutorsInitialized() && config->has("background_fetches_pool_size"))
|
|
{
|
|
auto new_pool_size = config->getUInt64("background_fetches_pool_size");
|
|
global_context->getFetchesExecutor()->increaseThreadsAndMaxTasksCount(new_pool_size, new_pool_size);
|
|
}
|
|
|
|
if (global_context->areBackgroundExecutorsInitialized() && config->has("background_common_pool_size"))
|
|
{
|
|
auto new_pool_size = config->getUInt64("background_common_pool_size");
|
|
global_context->getCommonExecutor()->increaseThreadsAndMaxTasksCount(new_pool_size, new_pool_size);
|
|
}
|
|
|
|
if (config->has("background_buffer_flush_schedule_pool_size"))
|
|
{
|
|
auto new_pool_size = config->getUInt64("background_buffer_flush_schedule_pool_size");
|
|
global_context->getBufferFlushSchedulePool().increaseThreadsCount(new_pool_size);
|
|
}
|
|
|
|
if (config->has("background_schedule_pool_size"))
|
|
{
|
|
auto new_pool_size = config->getUInt64("background_schedule_pool_size");
|
|
global_context->getSchedulePool().increaseThreadsCount(new_pool_size);
|
|
}
|
|
|
|
if (config->has("background_message_broker_schedule_pool_size"))
|
|
{
|
|
auto new_pool_size = config->getUInt64("background_message_broker_schedule_pool_size");
|
|
global_context->getMessageBrokerSchedulePool().increaseThreadsCount(new_pool_size);
|
|
}
|
|
|
|
if (config->has("background_distributed_schedule_pool_size"))
|
|
{
|
|
auto new_pool_size = config->getUInt64("background_distributed_schedule_pool_size");
|
|
global_context->getDistributedSchedulePool().increaseThreadsCount(new_pool_size);
|
|
}
|
|
|
|
if (!initial_loading)
|
|
{
|
|
/// We do not load ZooKeeper configuration on the first config loading
|
|
/// because TestKeeper server is not started yet.
|
|
if (config->has("zookeeper"))
|
|
global_context->reloadZooKeeperIfChanged(config);
|
|
|
|
global_context->reloadAuxiliaryZooKeepersConfigIfChanged(config);
|
|
|
|
std::lock_guard lock(servers_lock);
|
|
updateServers(*config, server_pool, async_metrics, servers);
|
|
}
|
|
|
|
global_context->updateStorageConfiguration(*config);
|
|
global_context->updateInterserverCredentials(*config);
|
|
|
|
CompressionCodecEncrypted::Configuration::instance().tryLoad(*config, "encryption_codecs");
|
|
#if USE_SSL
|
|
CertificateReloader::instance().tryLoad(*config);
|
|
#endif
|
|
ProfileEvents::increment(ProfileEvents::MainConfigLoads);
|
|
},
|
|
/* already_loaded = */ false); /// Reload it right now (initial loading)
|
|
|
|
const auto listen_hosts = getListenHosts(config());
|
|
const auto listen_try = getListenTry(config());
|
|
|
|
if (config().has("keeper_server"))
|
|
{
|
|
#if USE_NURAFT
|
|
//// If we don't have configured connection probably someone trying to use clickhouse-server instead
|
|
//// of clickhouse-keeper, so start synchronously.
|
|
bool can_initialize_keeper_async = false;
|
|
|
|
if (has_zookeeper) /// We have configured connection to some zookeeper cluster
|
|
{
|
|
/// If we cannot connect to some other node from our cluster then we have to wait our Keeper start
|
|
/// synchronously.
|
|
can_initialize_keeper_async = global_context->tryCheckClientConnectionToMyKeeperCluster();
|
|
}
|
|
/// Initialize keeper RAFT.
|
|
global_context->initializeKeeperDispatcher(can_initialize_keeper_async);
|
|
FourLetterCommandFactory::registerCommands(*global_context->getKeeperDispatcher());
|
|
|
|
auto config_getter = [this] () -> const Poco::Util::AbstractConfiguration &
|
|
{
|
|
return global_context->getConfigRef();
|
|
};
|
|
|
|
for (const auto & listen_host : listen_hosts)
|
|
{
|
|
/// TCP Keeper
|
|
const char * port_name = "keeper_server.tcp_port";
|
|
createServer(
|
|
config(), listen_host, port_name, listen_try, /* start_server: */ false,
|
|
servers_to_start_before_tables,
|
|
[&](UInt16 port) -> ProtocolServerAdapter
|
|
{
|
|
Poco::Net::ServerSocket socket;
|
|
auto address = socketBindListen(config(), socket, listen_host, port);
|
|
socket.setReceiveTimeout(config().getUInt64("keeper_server.socket_receive_timeout_sec", DBMS_DEFAULT_RECEIVE_TIMEOUT_SEC));
|
|
socket.setSendTimeout(config().getUInt64("keeper_server.socket_send_timeout_sec", DBMS_DEFAULT_SEND_TIMEOUT_SEC));
|
|
return ProtocolServerAdapter(
|
|
listen_host,
|
|
port_name,
|
|
"Keeper (tcp): " + address.toString(),
|
|
std::make_unique<TCPServer>(
|
|
new KeeperTCPHandlerFactory(
|
|
config_getter, global_context->getKeeperDispatcher(),
|
|
global_context->getSettingsRef().receive_timeout.totalSeconds(),
|
|
global_context->getSettingsRef().send_timeout.totalSeconds(),
|
|
false), server_pool, socket));
|
|
});
|
|
|
|
const char * secure_port_name = "keeper_server.tcp_port_secure";
|
|
createServer(
|
|
config(), listen_host, secure_port_name, listen_try, /* start_server: */ false,
|
|
servers_to_start_before_tables,
|
|
[&](UInt16 port) -> ProtocolServerAdapter
|
|
{
|
|
#if USE_SSL
|
|
Poco::Net::SecureServerSocket socket;
|
|
auto address = socketBindListen(config(), socket, listen_host, port, /* secure = */ true);
|
|
socket.setReceiveTimeout(config().getUInt64("keeper_server.socket_receive_timeout_sec", DBMS_DEFAULT_RECEIVE_TIMEOUT_SEC));
|
|
socket.setSendTimeout(config().getUInt64("keeper_server.socket_send_timeout_sec", DBMS_DEFAULT_SEND_TIMEOUT_SEC));
|
|
return ProtocolServerAdapter(
|
|
listen_host,
|
|
secure_port_name,
|
|
"Keeper with secure protocol (tcp_secure): " + address.toString(),
|
|
std::make_unique<TCPServer>(
|
|
new KeeperTCPHandlerFactory(
|
|
config_getter, global_context->getKeeperDispatcher(),
|
|
global_context->getSettingsRef().receive_timeout.totalSeconds(),
|
|
global_context->getSettingsRef().send_timeout.totalSeconds(), true), server_pool, socket));
|
|
#else
|
|
UNUSED(port);
|
|
throw Exception{"SSL support for TCP protocol is disabled because Poco library was built without NetSSL support.",
|
|
ErrorCodes::SUPPORT_IS_DISABLED};
|
|
#endif
|
|
});
|
|
}
|
|
#else
|
|
throw Exception(ErrorCodes::SUPPORT_IS_DISABLED, "ClickHouse server built without NuRaft library. Cannot use internal coordination.");
|
|
#endif
|
|
|
|
}
|
|
|
|
for (auto & server : servers_to_start_before_tables)
|
|
{
|
|
server.start();
|
|
LOG_INFO(log, "Listening for {}", server.getDescription());
|
|
}
|
|
|
|
/// Initialize access storages.
|
|
auto & access_control = global_context->getAccessControl();
|
|
try
|
|
{
|
|
access_control.setUpFromMainConfig(config(), config_path, [&] { return global_context->getZooKeeper(); });
|
|
}
|
|
catch (...)
|
|
{
|
|
tryLogCurrentException(log);
|
|
throw;
|
|
}
|
|
|
|
/// Reload config in SYSTEM RELOAD CONFIG query.
|
|
global_context->setConfigReloadCallback([&]()
|
|
{
|
|
main_config_reloader->reload();
|
|
access_control.reload();
|
|
});
|
|
|
|
/// Limit on total number of concurrently executed queries.
|
|
global_context->getProcessList().setMaxSize(config().getInt("max_concurrent_queries", 0));
|
|
|
|
/// Set up caches.
|
|
|
|
/// Lower cache size on low-memory systems.
|
|
double cache_size_to_ram_max_ratio = config().getDouble("cache_size_to_ram_max_ratio", 0.5);
|
|
size_t max_cache_size = memory_amount * cache_size_to_ram_max_ratio;
|
|
|
|
/// Size of cache for uncompressed blocks. Zero means disabled.
|
|
size_t uncompressed_cache_size = config().getUInt64("uncompressed_cache_size", 0);
|
|
if (uncompressed_cache_size > max_cache_size)
|
|
{
|
|
uncompressed_cache_size = max_cache_size;
|
|
LOG_INFO(log, "Uncompressed cache size was lowered to {} because the system has low amount of memory",
|
|
formatReadableSizeWithBinarySuffix(uncompressed_cache_size));
|
|
}
|
|
global_context->setUncompressedCache(uncompressed_cache_size);
|
|
|
|
/// Load global settings from default_profile and system_profile.
|
|
global_context->setDefaultProfiles(config());
|
|
const Settings & settings = global_context->getSettingsRef();
|
|
|
|
/// Initialize background executors after we load default_profile config.
|
|
/// This is needed to load proper values of background_pool_size etc.
|
|
global_context->initializeBackgroundExecutorsIfNeeded();
|
|
|
|
if (settings.async_insert_threads)
|
|
global_context->setAsynchronousInsertQueue(std::make_shared<AsynchronousInsertQueue>(
|
|
global_context,
|
|
settings.async_insert_threads,
|
|
settings.async_insert_max_data_size,
|
|
AsynchronousInsertQueue::Timeout{.busy = settings.async_insert_busy_timeout_ms, .stale = settings.async_insert_stale_timeout_ms}));
|
|
|
|
/// Size of cache for marks (index of MergeTree family of tables).
|
|
size_t mark_cache_size = config().getUInt64("mark_cache_size", 5368709120);
|
|
if (!mark_cache_size)
|
|
LOG_ERROR(log, "Too low mark cache size will lead to severe performance degradation.");
|
|
if (mark_cache_size > max_cache_size)
|
|
{
|
|
mark_cache_size = max_cache_size;
|
|
LOG_INFO(log, "Mark cache size was lowered to {} because the system has low amount of memory",
|
|
formatReadableSizeWithBinarySuffix(mark_cache_size));
|
|
}
|
|
global_context->setMarkCache(mark_cache_size);
|
|
|
|
/// Size of cache for uncompressed blocks of MergeTree indices. Zero means disabled.
|
|
size_t index_uncompressed_cache_size = config().getUInt64("index_uncompressed_cache_size", 0);
|
|
if (index_uncompressed_cache_size)
|
|
global_context->setIndexUncompressedCache(index_uncompressed_cache_size);
|
|
|
|
/// Size of cache for index marks (index of MergeTree skip indices).
|
|
size_t index_mark_cache_size = config().getUInt64("index_mark_cache_size", 0);
|
|
if (index_mark_cache_size)
|
|
global_context->setIndexMarkCache(index_mark_cache_size);
|
|
|
|
/// A cache for mmapped files.
|
|
size_t mmap_cache_size = config().getUInt64("mmap_cache_size", 1000); /// The choice of default is arbitrary.
|
|
if (mmap_cache_size)
|
|
global_context->setMMappedFileCache(mmap_cache_size);
|
|
|
|
#if USE_EMBEDDED_COMPILER
|
|
/// 128 MB
|
|
constexpr size_t compiled_expression_cache_size_default = 1024 * 1024 * 128;
|
|
size_t compiled_expression_cache_size = config().getUInt64("compiled_expression_cache_size", compiled_expression_cache_size_default);
|
|
|
|
constexpr size_t compiled_expression_cache_elements_size_default = 10000;
|
|
size_t compiled_expression_cache_elements_size = config().getUInt64("compiled_expression_cache_elements_size", compiled_expression_cache_elements_size_default);
|
|
|
|
CompiledExpressionCacheFactory::instance().init(compiled_expression_cache_size, compiled_expression_cache_elements_size);
|
|
#endif
|
|
|
|
/// Set path for format schema files
|
|
fs::path format_schema_path(config().getString("format_schema_path", path / "format_schemas/"));
|
|
global_context->setFormatSchemaPath(format_schema_path);
|
|
fs::create_directories(format_schema_path);
|
|
|
|
/// Check sanity of MergeTreeSettings on server startup
|
|
{
|
|
size_t background_pool_tasks = global_context->getMergeMutateExecutor()->getMaxTasksCount();
|
|
global_context->getMergeTreeSettings().sanityCheck(background_pool_tasks);
|
|
global_context->getReplicatedMergeTreeSettings().sanityCheck(background_pool_tasks);
|
|
}
|
|
|
|
/// try set up encryption. There are some errors in config, error will be printed and server wouldn't start.
|
|
CompressionCodecEncrypted::Configuration::instance().load(config(), "encryption_codecs");
|
|
|
|
SCOPE_EXIT({
|
|
/// Stop reloading of the main config. This must be done before `global_context->shutdown()` because
|
|
/// otherwise the reloading may pass a changed config to some destroyed parts of ContextSharedPart.
|
|
main_config_reloader.reset();
|
|
access_control.stopPeriodicReloading();
|
|
|
|
async_metrics.stop();
|
|
|
|
/** Ask to cancel background jobs all table engines,
|
|
* and also query_log.
|
|
* It is important to do early, not in destructor of Context, because
|
|
* table engines could use Context on destroy.
|
|
*/
|
|
LOG_INFO(log, "Shutting down storages.");
|
|
|
|
global_context->shutdown();
|
|
|
|
LOG_DEBUG(log, "Shut down storages.");
|
|
|
|
if (!servers_to_start_before_tables.empty())
|
|
{
|
|
LOG_DEBUG(log, "Waiting for current connections to servers for tables to finish.");
|
|
int current_connections = 0;
|
|
for (auto & server : servers_to_start_before_tables)
|
|
{
|
|
server.stop();
|
|
current_connections += server.currentConnections();
|
|
}
|
|
|
|
if (current_connections)
|
|
LOG_INFO(log, "Closed all listening sockets. Waiting for {} outstanding connections.", current_connections);
|
|
else
|
|
LOG_INFO(log, "Closed all listening sockets.");
|
|
|
|
if (current_connections > 0)
|
|
current_connections = waitServersToFinish(servers_to_start_before_tables, config().getInt("shutdown_wait_unfinished", 5));
|
|
|
|
if (current_connections)
|
|
LOG_INFO(log, "Closed connections to servers for tables. But {} remain. Probably some tables of other users cannot finish their connections after context shutdown.", current_connections);
|
|
else
|
|
LOG_INFO(log, "Closed connections to servers for tables.");
|
|
|
|
global_context->shutdownKeeperDispatcher();
|
|
}
|
|
|
|
/// Wait server pool to avoid use-after-free of destroyed context in the handlers
|
|
server_pool.joinAll();
|
|
|
|
/** Explicitly destroy Context. It is more convenient than in destructor of Server, because logger is still available.
|
|
* At this moment, no one could own shared part of Context.
|
|
*/
|
|
global_context.reset();
|
|
shared_context.reset();
|
|
LOG_DEBUG(log, "Destroyed global context.");
|
|
});
|
|
|
|
/// Set current database name before loading tables and databases because
|
|
/// system logs may copy global context.
|
|
global_context->setCurrentDatabaseNameInGlobalContext(default_database);
|
|
|
|
LOG_INFO(log, "Loading user defined objects from {}", path_str);
|
|
try
|
|
{
|
|
UserDefinedSQLObjectsLoader::instance().loadObjects(global_context);
|
|
}
|
|
catch (...)
|
|
{
|
|
tryLogCurrentException(log, "Caught exception while loading user defined objects");
|
|
throw;
|
|
}
|
|
LOG_DEBUG(log, "Loaded user defined objects");
|
|
|
|
LOG_INFO(log, "Loading metadata from {}", path_str);
|
|
|
|
try
|
|
{
|
|
auto & database_catalog = DatabaseCatalog::instance();
|
|
/// We load temporary database first, because projections need it.
|
|
database_catalog.initializeAndLoadTemporaryDatabase();
|
|
loadMetadataSystem(global_context);
|
|
/// After attaching system databases we can initialize system log.
|
|
global_context->initializeSystemLogs();
|
|
global_context->setSystemZooKeeperLogAfterInitializationIfNeeded();
|
|
/// After the system database is created, attach virtual system tables (in addition to query_log and part_log)
|
|
attachSystemTablesServer(global_context, *database_catalog.getSystemDatabase(), has_zookeeper);
|
|
attachInformationSchema(global_context, *database_catalog.getDatabase(DatabaseCatalog::INFORMATION_SCHEMA));
|
|
attachInformationSchema(global_context, *database_catalog.getDatabase(DatabaseCatalog::INFORMATION_SCHEMA_UPPERCASE));
|
|
/// Firstly remove partially dropped databases, to avoid race with MaterializedMySQLSyncThread,
|
|
/// that may execute DROP before loadMarkedAsDroppedTables() in background,
|
|
/// and so loadMarkedAsDroppedTables() will find it and try to add, and UUID will overlap.
|
|
database_catalog.loadMarkedAsDroppedTables();
|
|
/// Then, load remaining databases
|
|
loadMetadata(global_context, default_database);
|
|
startupSystemTables();
|
|
database_catalog.loadDatabases();
|
|
/// After loading validate that default database exists
|
|
database_catalog.assertDatabaseExists(default_database);
|
|
}
|
|
catch (...)
|
|
{
|
|
tryLogCurrentException(log, "Caught exception while loading metadata");
|
|
throw;
|
|
}
|
|
LOG_DEBUG(log, "Loaded metadata.");
|
|
|
|
/// Init trace collector only after trace_log system table was created
|
|
/// Disable it if we collect test coverage information, because it will work extremely slow.
|
|
#if USE_UNWIND && !WITH_COVERAGE && defined(__x86_64__)
|
|
/// Profilers cannot work reliably with any other libunwind or without PHDR cache.
|
|
if (hasPHDRCache())
|
|
{
|
|
global_context->initializeTraceCollector();
|
|
|
|
/// Set up server-wide memory profiler (for total memory tracker).
|
|
UInt64 total_memory_profiler_step = config().getUInt64("total_memory_profiler_step", 0);
|
|
if (total_memory_profiler_step)
|
|
{
|
|
total_memory_tracker.setProfilerStep(total_memory_profiler_step);
|
|
}
|
|
|
|
double total_memory_tracker_sample_probability = config().getDouble("total_memory_tracker_sample_probability", 0);
|
|
if (total_memory_tracker_sample_probability)
|
|
{
|
|
total_memory_tracker.setSampleProbability(total_memory_tracker_sample_probability);
|
|
}
|
|
}
|
|
#endif
|
|
|
|
/// Describe multiple reasons when query profiler cannot work.
|
|
|
|
#if !USE_UNWIND
|
|
LOG_INFO(log, "Query Profiler and TraceCollector are disabled because they cannot work without bundled unwind (stack unwinding) library.");
|
|
#endif
|
|
|
|
#if WITH_COVERAGE
|
|
LOG_INFO(log, "Query Profiler and TraceCollector are disabled because they work extremely slow with test coverage.");
|
|
#endif
|
|
|
|
#if defined(SANITIZER)
|
|
LOG_INFO(log, "Query Profiler disabled because they cannot work under sanitizers"
|
|
" when two different stack unwinding methods will interfere with each other.");
|
|
#endif
|
|
|
|
#if !defined(__x86_64__)
|
|
LOG_INFO(log, "Query Profiler and TraceCollector is only tested on x86_64. It also known to not work under qemu-user.");
|
|
#endif
|
|
|
|
if (!hasPHDRCache())
|
|
LOG_INFO(log, "Query Profiler and TraceCollector are disabled because they require PHDR cache to be created"
|
|
" (otherwise the function 'dl_iterate_phdr' is not lock free and not async-signal safe).");
|
|
|
|
std::unique_ptr<DNSCacheUpdater> dns_cache_updater;
|
|
if (config().has("disable_internal_dns_cache") && config().getInt("disable_internal_dns_cache"))
|
|
{
|
|
/// Disable DNS caching at all
|
|
DNSResolver::instance().setDisableCacheFlag();
|
|
LOG_DEBUG(log, "DNS caching disabled");
|
|
}
|
|
else
|
|
{
|
|
/// Initialize a watcher periodically updating DNS cache
|
|
dns_cache_updater = std::make_unique<DNSCacheUpdater>(
|
|
global_context, config().getInt("dns_cache_update_period", 15), config().getUInt("dns_max_consecutive_failures", 5));
|
|
}
|
|
|
|
#if defined(OS_LINUX)
|
|
auto tasks_stats_provider = TasksStatsCounters::findBestAvailableProvider();
|
|
if (tasks_stats_provider == TasksStatsCounters::MetricsProvider::None)
|
|
{
|
|
LOG_INFO(log, "It looks like this system does not have procfs mounted at /proc location,"
|
|
" neither clickhouse-server process has CAP_NET_ADMIN capability."
|
|
" 'taskstats' performance statistics will be disabled."
|
|
" It could happen due to incorrect ClickHouse package installation."
|
|
" You can try to resolve the problem manually with 'sudo setcap cap_net_admin=+ep {}'."
|
|
" Note that it will not work on 'nosuid' mounted filesystems."
|
|
" It also doesn't work if you run clickhouse-server inside network namespace as it happens in some containers.",
|
|
executable_path);
|
|
}
|
|
else
|
|
{
|
|
LOG_INFO(log, "Tasks stats provider: {}", TasksStatsCounters::metricsProviderString(tasks_stats_provider));
|
|
}
|
|
|
|
if (!hasLinuxCapability(CAP_SYS_NICE))
|
|
{
|
|
LOG_INFO(log, "It looks like the process has no CAP_SYS_NICE capability, the setting 'os_thread_priority' will have no effect."
|
|
" It could happen due to incorrect ClickHouse package installation."
|
|
" You could resolve the problem manually with 'sudo setcap cap_sys_nice=+ep {}'."
|
|
" Note that it will not work on 'nosuid' mounted filesystems.",
|
|
executable_path);
|
|
}
|
|
#else
|
|
LOG_INFO(log, "TaskStats is not implemented for this OS. IO accounting will be disabled.");
|
|
#endif
|
|
|
|
{
|
|
attachSystemTablesAsync(global_context, *DatabaseCatalog::instance().getSystemDatabase(), async_metrics);
|
|
|
|
{
|
|
std::lock_guard lock(servers_lock);
|
|
createServers(config(), listen_hosts, listen_try, server_pool, async_metrics, servers);
|
|
if (servers.empty())
|
|
throw Exception(
|
|
"No servers started (add valid listen_host and 'tcp_port' or 'http_port' to configuration file.)",
|
|
ErrorCodes::NO_ELEMENTS_IN_CONFIG);
|
|
}
|
|
|
|
if (servers.empty())
|
|
throw Exception("No servers started (add valid listen_host and 'tcp_port' or 'http_port' to configuration file.)",
|
|
ErrorCodes::NO_ELEMENTS_IN_CONFIG);
|
|
|
|
#if USE_SSL
|
|
CertificateReloader::instance().tryLoad(config());
|
|
#endif
|
|
|
|
/// Must be done after initialization of `servers`, because async_metrics will access `servers` variable from its thread.
|
|
|
|
async_metrics.start();
|
|
|
|
{
|
|
String level_str = config().getString("text_log.level", "");
|
|
int level = level_str.empty() ? INT_MAX : Poco::Logger::parseLevel(level_str);
|
|
setTextLog(global_context->getTextLog(), level);
|
|
}
|
|
|
|
buildLoggers(config(), logger());
|
|
|
|
main_config_reloader->start();
|
|
access_control.startPeriodicReloading();
|
|
if (dns_cache_updater)
|
|
dns_cache_updater->start();
|
|
|
|
{
|
|
LOG_INFO(log, "Available RAM: {}; physical cores: {}; logical cores: {}.",
|
|
formatReadableSizeWithBinarySuffix(memory_amount),
|
|
getNumberOfPhysicalCPUCores(), // on ARM processors it can show only enabled at current moment cores
|
|
std::thread::hardware_concurrency());
|
|
}
|
|
|
|
/// try to load dictionaries immediately, throw on error and die
|
|
try
|
|
{
|
|
global_context->loadOrReloadDictionaries(config());
|
|
}
|
|
catch (...)
|
|
{
|
|
tryLogCurrentException(log, "Caught exception while loading dictionaries.");
|
|
throw;
|
|
}
|
|
|
|
/// try to load embedded dictionaries immediately, throw on error and die
|
|
try
|
|
{
|
|
global_context->tryCreateEmbeddedDictionaries(config());
|
|
}
|
|
catch (...)
|
|
{
|
|
tryLogCurrentException(log, "Caught exception while loading embedded dictionaries.");
|
|
throw;
|
|
}
|
|
|
|
/// try to load models immediately, throw on error and die
|
|
try
|
|
{
|
|
global_context->loadOrReloadModels(config());
|
|
}
|
|
catch (...)
|
|
{
|
|
tryLogCurrentException(log, "Caught exception while loading dictionaries.");
|
|
throw;
|
|
}
|
|
|
|
/// try to load user defined executable functions, throw on error and die
|
|
try
|
|
{
|
|
global_context->loadOrReloadUserDefinedExecutableFunctions(config());
|
|
}
|
|
catch (...)
|
|
{
|
|
tryLogCurrentException(log, "Caught exception while loading user defined executable functions.");
|
|
throw;
|
|
}
|
|
|
|
if (has_zookeeper && config().has("distributed_ddl"))
|
|
{
|
|
/// DDL worker should be started after all tables were loaded
|
|
String ddl_zookeeper_path = config().getString("distributed_ddl.path", "/clickhouse/task_queue/ddl/");
|
|
int pool_size = config().getInt("distributed_ddl.pool_size", 1);
|
|
if (pool_size < 1)
|
|
throw Exception("distributed_ddl.pool_size should be greater then 0", ErrorCodes::ARGUMENT_OUT_OF_BOUND);
|
|
global_context->setDDLWorker(std::make_unique<DDLWorker>(pool_size, ddl_zookeeper_path, global_context, &config(),
|
|
"distributed_ddl", "DDLWorker",
|
|
&CurrentMetrics::MaxDDLEntryID, &CurrentMetrics::MaxPushedDDLEntryID));
|
|
}
|
|
|
|
{
|
|
std::lock_guard lock(servers_lock);
|
|
for (auto & server : servers)
|
|
{
|
|
server.start();
|
|
LOG_INFO(log, "Listening for {}", server.getDescription());
|
|
}
|
|
|
|
global_context->setServerCompletelyStarted();
|
|
LOG_INFO(log, "Ready for connections.");
|
|
}
|
|
|
|
try
|
|
{
|
|
global_context->startClusterDiscovery();
|
|
}
|
|
catch (...)
|
|
{
|
|
tryLogCurrentException(log, "Caught exception while starting cluster discovery");
|
|
}
|
|
|
|
SCOPE_EXIT_SAFE({
|
|
LOG_DEBUG(log, "Received termination signal.");
|
|
LOG_DEBUG(log, "Waiting for current connections to close.");
|
|
|
|
is_cancelled = true;
|
|
|
|
int current_connections = 0;
|
|
{
|
|
std::lock_guard lock(servers_lock);
|
|
for (auto & server : servers)
|
|
{
|
|
server.stop();
|
|
current_connections += server.currentConnections();
|
|
}
|
|
}
|
|
|
|
if (current_connections)
|
|
LOG_INFO(log, "Closed all listening sockets. Waiting for {} outstanding connections.", current_connections);
|
|
else
|
|
LOG_INFO(log, "Closed all listening sockets.");
|
|
|
|
/// Killing remaining queries.
|
|
if (!config().getBool("shutdown_wait_unfinished_queries", false))
|
|
global_context->getProcessList().killAllQueries();
|
|
|
|
if (current_connections)
|
|
current_connections = waitServersToFinish(servers, config().getInt("shutdown_wait_unfinished", 5));
|
|
|
|
if (current_connections)
|
|
LOG_INFO(log, "Closed connections. But {} remain."
|
|
" Tip: To increase wait time add to config: <shutdown_wait_unfinished>60</shutdown_wait_unfinished>", current_connections);
|
|
else
|
|
LOG_INFO(log, "Closed connections.");
|
|
|
|
dns_cache_updater.reset();
|
|
|
|
if (current_connections)
|
|
{
|
|
/// There is no better way to force connections to close in Poco.
|
|
/// Otherwise connection handlers will continue to live
|
|
/// (they are effectively dangling objects, but they use global thread pool
|
|
/// and global thread pool destructor will wait for threads, preventing server shutdown).
|
|
|
|
/// Dump coverage here, because std::atexit callback would not be called.
|
|
dumpCoverageReportIfPossible();
|
|
LOG_INFO(log, "Will shutdown forcefully.");
|
|
safeExit(0);
|
|
}
|
|
});
|
|
|
|
std::vector<std::unique_ptr<MetricsTransmitter>> metrics_transmitters;
|
|
for (const auto & graphite_key : DB::getMultipleKeysFromConfig(config(), "", "graphite"))
|
|
{
|
|
metrics_transmitters.emplace_back(std::make_unique<MetricsTransmitter>(
|
|
global_context->getConfigRef(), graphite_key, async_metrics));
|
|
}
|
|
|
|
waitForTerminationRequest();
|
|
}
|
|
|
|
return Application::EXIT_OK;
|
|
}
|
|
|
|
|
|
void Server::createServers(
|
|
Poco::Util::AbstractConfiguration & config,
|
|
const std::vector<std::string> & listen_hosts,
|
|
bool listen_try,
|
|
Poco::ThreadPool & server_pool,
|
|
AsynchronousMetrics & async_metrics,
|
|
std::vector<ProtocolServerAdapter> & servers,
|
|
bool start_servers)
|
|
{
|
|
const Settings & settings = global_context->getSettingsRef();
|
|
|
|
Poco::Timespan keep_alive_timeout(config.getUInt("keep_alive_timeout", 10), 0);
|
|
Poco::Net::HTTPServerParams::Ptr http_params = new Poco::Net::HTTPServerParams;
|
|
http_params->setTimeout(settings.http_receive_timeout);
|
|
http_params->setKeepAliveTimeout(keep_alive_timeout);
|
|
|
|
for (const auto & listen_host : listen_hosts)
|
|
{
|
|
/// HTTP
|
|
const char * port_name = "http_port";
|
|
createServer(config, listen_host, port_name, listen_try, start_servers, servers, [&](UInt16 port) -> ProtocolServerAdapter
|
|
{
|
|
Poco::Net::ServerSocket socket;
|
|
auto address = socketBindListen(config, socket, listen_host, port);
|
|
socket.setReceiveTimeout(settings.http_receive_timeout);
|
|
socket.setSendTimeout(settings.http_send_timeout);
|
|
|
|
return ProtocolServerAdapter(
|
|
listen_host,
|
|
port_name,
|
|
"http://" + address.toString(),
|
|
std::make_unique<HTTPServer>(
|
|
context(), createHandlerFactory(*this, async_metrics, "HTTPHandler-factory"), server_pool, socket, http_params));
|
|
});
|
|
|
|
/// HTTPS
|
|
port_name = "https_port";
|
|
createServer(config, listen_host, port_name, listen_try, start_servers, servers, [&](UInt16 port) -> ProtocolServerAdapter
|
|
{
|
|
#if USE_SSL
|
|
Poco::Net::SecureServerSocket socket;
|
|
auto address = socketBindListen(config, socket, listen_host, port, /* secure = */ true);
|
|
socket.setReceiveTimeout(settings.http_receive_timeout);
|
|
socket.setSendTimeout(settings.http_send_timeout);
|
|
return ProtocolServerAdapter(
|
|
listen_host,
|
|
port_name,
|
|
"https://" + address.toString(),
|
|
std::make_unique<HTTPServer>(
|
|
context(), createHandlerFactory(*this, async_metrics, "HTTPSHandler-factory"), server_pool, socket, http_params));
|
|
#else
|
|
UNUSED(port);
|
|
throw Exception{"HTTPS protocol is disabled because Poco library was built without NetSSL support.",
|
|
ErrorCodes::SUPPORT_IS_DISABLED};
|
|
#endif
|
|
});
|
|
|
|
/// TCP
|
|
port_name = "tcp_port";
|
|
createServer(config, listen_host, port_name, listen_try, start_servers, servers, [&](UInt16 port) -> ProtocolServerAdapter
|
|
{
|
|
Poco::Net::ServerSocket socket;
|
|
auto address = socketBindListen(config, socket, listen_host, port);
|
|
socket.setReceiveTimeout(settings.receive_timeout);
|
|
socket.setSendTimeout(settings.send_timeout);
|
|
return ProtocolServerAdapter(
|
|
listen_host,
|
|
port_name,
|
|
"native protocol (tcp): " + address.toString(),
|
|
std::make_unique<TCPServer>(
|
|
new TCPHandlerFactory(*this, /* secure */ false, /* proxy protocol */ false),
|
|
server_pool,
|
|
socket,
|
|
new Poco::Net::TCPServerParams));
|
|
});
|
|
|
|
/// TCP with PROXY protocol, see https://github.com/wolfeidau/proxyv2/blob/master/docs/proxy-protocol.txt
|
|
port_name = "tcp_with_proxy_port";
|
|
createServer(config, listen_host, port_name, listen_try, start_servers, servers, [&](UInt16 port) -> ProtocolServerAdapter
|
|
{
|
|
Poco::Net::ServerSocket socket;
|
|
auto address = socketBindListen(config, socket, listen_host, port);
|
|
socket.setReceiveTimeout(settings.receive_timeout);
|
|
socket.setSendTimeout(settings.send_timeout);
|
|
return ProtocolServerAdapter(
|
|
listen_host,
|
|
port_name,
|
|
"native protocol (tcp) with PROXY: " + address.toString(),
|
|
std::make_unique<TCPServer>(
|
|
new TCPHandlerFactory(*this, /* secure */ false, /* proxy protocol */ true),
|
|
server_pool,
|
|
socket,
|
|
new Poco::Net::TCPServerParams));
|
|
});
|
|
|
|
/// TCP with SSL
|
|
port_name = "tcp_port_secure";
|
|
createServer(config, listen_host, port_name, listen_try, start_servers, servers, [&](UInt16 port) -> ProtocolServerAdapter
|
|
{
|
|
#if USE_SSL
|
|
Poco::Net::SecureServerSocket socket;
|
|
auto address = socketBindListen(config, socket, listen_host, port, /* secure = */ true);
|
|
socket.setReceiveTimeout(settings.receive_timeout);
|
|
socket.setSendTimeout(settings.send_timeout);
|
|
return ProtocolServerAdapter(
|
|
listen_host,
|
|
port_name,
|
|
"secure native protocol (tcp_secure): " + address.toString(),
|
|
std::make_unique<TCPServer>(
|
|
new TCPHandlerFactory(*this, /* secure */ true, /* proxy protocol */ false),
|
|
server_pool,
|
|
socket,
|
|
new Poco::Net::TCPServerParams));
|
|
#else
|
|
UNUSED(port);
|
|
throw Exception{"SSL support for TCP protocol is disabled because Poco library was built without NetSSL support.",
|
|
ErrorCodes::SUPPORT_IS_DISABLED};
|
|
#endif
|
|
});
|
|
|
|
/// Interserver IO HTTP
|
|
port_name = "interserver_http_port";
|
|
createServer(config, listen_host, port_name, listen_try, start_servers, servers, [&](UInt16 port) -> ProtocolServerAdapter
|
|
{
|
|
Poco::Net::ServerSocket socket;
|
|
auto address = socketBindListen(config, socket, listen_host, port);
|
|
socket.setReceiveTimeout(settings.http_receive_timeout);
|
|
socket.setSendTimeout(settings.http_send_timeout);
|
|
return ProtocolServerAdapter(
|
|
listen_host,
|
|
port_name,
|
|
"replica communication (interserver): http://" + address.toString(),
|
|
std::make_unique<HTTPServer>(
|
|
context(),
|
|
createHandlerFactory(*this, async_metrics, "InterserverIOHTTPHandler-factory"),
|
|
server_pool,
|
|
socket,
|
|
http_params));
|
|
});
|
|
|
|
port_name = "interserver_https_port";
|
|
createServer(config, listen_host, port_name, listen_try, start_servers, servers, [&](UInt16 port) -> ProtocolServerAdapter
|
|
{
|
|
#if USE_SSL
|
|
Poco::Net::SecureServerSocket socket;
|
|
auto address = socketBindListen(config, socket, listen_host, port, /* secure = */ true);
|
|
socket.setReceiveTimeout(settings.http_receive_timeout);
|
|
socket.setSendTimeout(settings.http_send_timeout);
|
|
return ProtocolServerAdapter(
|
|
listen_host,
|
|
port_name,
|
|
"secure replica communication (interserver): https://" + address.toString(),
|
|
std::make_unique<HTTPServer>(
|
|
context(),
|
|
createHandlerFactory(*this, async_metrics, "InterserverIOHTTPSHandler-factory"),
|
|
server_pool,
|
|
socket,
|
|
http_params));
|
|
#else
|
|
UNUSED(port);
|
|
throw Exception{"SSL support for TCP protocol is disabled because Poco library was built without NetSSL support.",
|
|
ErrorCodes::SUPPORT_IS_DISABLED};
|
|
#endif
|
|
});
|
|
|
|
port_name = "mysql_port";
|
|
createServer(config, listen_host, port_name, listen_try, start_servers, servers, [&](UInt16 port) -> ProtocolServerAdapter
|
|
{
|
|
Poco::Net::ServerSocket socket;
|
|
auto address = socketBindListen(config, socket, listen_host, port, /* secure = */ true);
|
|
socket.setReceiveTimeout(Poco::Timespan());
|
|
socket.setSendTimeout(settings.send_timeout);
|
|
return ProtocolServerAdapter(
|
|
listen_host,
|
|
port_name,
|
|
"MySQL compatibility protocol: " + address.toString(),
|
|
std::make_unique<TCPServer>(new MySQLHandlerFactory(*this), server_pool, socket, new Poco::Net::TCPServerParams));
|
|
});
|
|
|
|
port_name = "postgresql_port";
|
|
createServer(config, listen_host, port_name, listen_try, start_servers, servers, [&](UInt16 port) -> ProtocolServerAdapter
|
|
{
|
|
Poco::Net::ServerSocket socket;
|
|
auto address = socketBindListen(config, socket, listen_host, port, /* secure = */ true);
|
|
socket.setReceiveTimeout(Poco::Timespan());
|
|
socket.setSendTimeout(settings.send_timeout);
|
|
return ProtocolServerAdapter(
|
|
listen_host,
|
|
port_name,
|
|
"PostgreSQL compatibility protocol: " + address.toString(),
|
|
std::make_unique<TCPServer>(new PostgreSQLHandlerFactory(*this), server_pool, socket, new Poco::Net::TCPServerParams));
|
|
});
|
|
|
|
#if USE_GRPC
|
|
port_name = "grpc_port";
|
|
createServer(config, listen_host, port_name, listen_try, start_servers, servers, [&](UInt16 port) -> ProtocolServerAdapter
|
|
{
|
|
Poco::Net::SocketAddress server_address(listen_host, port);
|
|
return ProtocolServerAdapter(
|
|
listen_host,
|
|
port_name,
|
|
"gRPC protocol: " + server_address.toString(),
|
|
std::make_unique<GRPCServer>(*this, makeSocketAddress(listen_host, port, &logger())));
|
|
});
|
|
#endif
|
|
|
|
/// Prometheus (if defined and not setup yet with http_port)
|
|
port_name = "prometheus.port";
|
|
createServer(config, listen_host, port_name, listen_try, start_servers, servers, [&](UInt16 port) -> ProtocolServerAdapter
|
|
{
|
|
Poco::Net::ServerSocket socket;
|
|
auto address = socketBindListen(config, socket, listen_host, port);
|
|
socket.setReceiveTimeout(settings.http_receive_timeout);
|
|
socket.setSendTimeout(settings.http_send_timeout);
|
|
return ProtocolServerAdapter(
|
|
listen_host,
|
|
port_name,
|
|
"Prometheus: http://" + address.toString(),
|
|
std::make_unique<HTTPServer>(
|
|
context(), createHandlerFactory(*this, async_metrics, "PrometheusHandler-factory"), server_pool, socket, http_params));
|
|
});
|
|
}
|
|
|
|
}
|
|
|
|
void Server::updateServers(
|
|
Poco::Util::AbstractConfiguration & config,
|
|
Poco::ThreadPool & server_pool,
|
|
AsynchronousMetrics & async_metrics,
|
|
std::vector<ProtocolServerAdapter> & servers)
|
|
{
|
|
Poco::Logger * log = &logger();
|
|
|
|
const auto listen_hosts = getListenHosts(config);
|
|
const auto listen_try = getListenTry(config);
|
|
|
|
/// Remove servers once all their connections are closed
|
|
auto check_server = [&log](const char prefix[], auto & server)
|
|
{
|
|
if (!server.isStopping())
|
|
return false;
|
|
size_t current_connections = server.currentConnections();
|
|
LOG_DEBUG(log, "Server {}{}: {} ({} connections)",
|
|
server.getDescription(),
|
|
prefix,
|
|
!current_connections ? "finished" : "waiting",
|
|
current_connections);
|
|
return !current_connections;
|
|
};
|
|
|
|
std::erase_if(servers, std::bind_front(check_server, " (from one of previous reload)"));
|
|
|
|
for (auto & server : servers)
|
|
{
|
|
if (!server.isStopping())
|
|
{
|
|
bool has_host = std::find(listen_hosts.begin(), listen_hosts.end(), server.getListenHost()) != listen_hosts.end();
|
|
bool has_port = !config.getString(server.getPortName(), "").empty();
|
|
if (!has_host || !has_port || config.getInt(server.getPortName()) != server.portNumber())
|
|
{
|
|
server.stop();
|
|
LOG_INFO(log, "Stopped listening for {}", server.getDescription());
|
|
}
|
|
}
|
|
}
|
|
|
|
createServers(config, listen_hosts, listen_try, server_pool, async_metrics, servers, /* start_servers= */ true);
|
|
|
|
std::erase_if(servers, std::bind_front(check_server, ""));
|
|
}
|
|
|
|
}
|