2018-12-19 12:38:13 +00:00
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#include <Storages/StorageDistributed.h>
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2017-04-01 09:19:00 +00:00
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#include <Databases/IDatabase.h>
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2021-04-04 10:27:45 +00:00
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2021-01-09 12:26:37 +00:00
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#include <Disks/IDisk.h>
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2017-04-01 09:19:00 +00:00
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2021-04-04 10:27:45 +00:00
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#include <DataStreams/RemoteBlockInputStream.h>
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2018-07-05 20:38:05 +00:00
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#include <DataTypes/DataTypeFactory.h>
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2020-11-20 17:23:53 +00:00
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#include <DataTypes/DataTypeUUID.h>
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2018-12-19 12:38:13 +00:00
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#include <DataTypes/DataTypesNumber.h>
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2018-07-05 20:38:05 +00:00
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2018-12-19 12:38:13 +00:00
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#include <Storages/Distributed/DistributedBlockOutputStream.h>
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2017-12-30 00:36:06 +00:00
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#include <Storages/StorageFactory.h>
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2018-12-25 23:14:39 +00:00
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#include <Storages/AlterCommands.h>
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2017-04-01 09:19:00 +00:00
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2020-04-10 09:24:16 +00:00
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#include <Columns/ColumnConst.h>
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2018-01-22 15:56:30 +00:00
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#include <Common/Macros.h>
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2021-01-27 18:43:41 +00:00
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#include <Common/ProfileEvents.h>
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2017-04-01 09:19:00 +00:00
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#include <Common/escapeForFileName.h>
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2017-07-13 20:58:19 +00:00
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#include <Common/typeid_cast.h>
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2020-04-16 21:54:43 +00:00
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#include <Common/quoteString.h>
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2020-12-23 16:04:05 +00:00
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#include <Common/randomSeed.h>
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2021-01-26 18:45:37 +00:00
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#include <Common/formatReadable.h>
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2017-04-01 09:19:00 +00:00
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2018-12-19 12:38:13 +00:00
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#include <Parsers/ASTDropQuery.h>
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#include <Parsers/ASTExpressionList.h>
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#include <Parsers/ASTIdentifier.h>
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2017-04-01 09:19:00 +00:00
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#include <Parsers/ASTInsertQuery.h>
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2018-12-19 12:38:13 +00:00
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#include <Parsers/ASTLiteral.h>
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2017-04-01 09:19:00 +00:00
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#include <Parsers/ASTSelectQuery.h>
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2018-12-19 12:38:13 +00:00
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#include <Parsers/ASTTablesInSelectQuery.h>
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2017-04-01 09:19:00 +00:00
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#include <Parsers/ParserAlterQuery.h>
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2018-12-19 12:38:13 +00:00
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#include <Parsers/TablePropertiesQueriesASTs.h>
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2017-04-01 09:19:00 +00:00
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#include <Parsers/parseQuery.h>
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2021-04-04 10:27:45 +00:00
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#include <Parsers/queryToString.h>
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2021-03-04 17:38:12 +00:00
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2018-12-19 12:38:13 +00:00
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#include <Interpreters/ClusterProxy/SelectStreamFactory.h>
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#include <Interpreters/ClusterProxy/executeQuery.h>
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2020-06-13 16:31:28 +00:00
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#include <Interpreters/Cluster.h>
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2018-12-19 12:38:13 +00:00
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#include <Interpreters/ExpressionAnalyzer.h>
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2017-04-01 09:19:00 +00:00
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#include <Interpreters/InterpreterAlterQuery.h>
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#include <Interpreters/InterpreterDescribeQuery.h>
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2018-12-19 12:38:13 +00:00
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#include <Interpreters/InterpreterSelectQuery.h>
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2021-04-04 10:27:45 +00:00
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#include <Interpreters/JoinedTables.h>
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2019-07-26 17:43:42 +00:00
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#include <Interpreters/TranslateQualifiedNamesVisitor.h>
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2020-07-22 17:13:05 +00:00
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#include <Interpreters/TreeRewriter.h>
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2020-05-20 20:16:32 +00:00
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#include <Interpreters/Context.h>
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2018-12-19 12:38:13 +00:00
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#include <Interpreters/createBlockSelector.h>
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2017-12-30 00:36:06 +00:00
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#include <Interpreters/evaluateConstantExpression.h>
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#include <Interpreters/getClusterName.h>
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2020-04-01 14:21:37 +00:00
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#include <Interpreters/getTableExpressions.h>
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2020-06-16 18:49:04 +00:00
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#include <Functions/IFunction.h>
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2017-04-01 09:19:00 +00:00
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2021-04-04 10:27:45 +00:00
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#include <Processors/QueryPlan/BuildQueryPipelineSettings.h>
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#include <Processors/QueryPlan/Optimizations/QueryPlanOptimizationSettings.h>
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2021-03-09 19:00:38 +00:00
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#include <Processors/QueryPlan/ReadFromPreparedSource.h>
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#include <Processors/Sources/NullSource.h>
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2021-04-04 10:27:45 +00:00
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#include <Processors/Sources/SourceFromInputStream.h>
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#include <Processors/NullSink.h>
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2021-03-09 19:00:38 +00:00
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2017-04-01 09:19:00 +00:00
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#include <Core/Field.h>
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2020-06-13 16:31:28 +00:00
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#include <Core/Settings.h>
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2012-05-21 20:38:34 +00:00
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2018-06-05 19:46:49 +00:00
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#include <IO/ReadHelpers.h>
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2020-11-09 19:07:38 +00:00
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#include <IO/WriteBufferFromString.h>
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#include <IO/Operators.h>
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2021-04-04 10:27:45 +00:00
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#include <IO/ConnectionTimeoutsContext.h>
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2018-06-05 19:46:49 +00:00
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2016-12-12 03:33:34 +00:00
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#include <Poco/DirectoryIterator.h>
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2015-02-10 21:10:58 +00:00
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#include <memory>
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2019-07-31 22:37:41 +00:00
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#include <filesystem>
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2020-04-22 21:44:22 +00:00
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#include <optional>
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2020-09-18 19:25:56 +00:00
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#include <cassert>
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2017-05-10 06:39:37 +00:00
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2016-12-12 03:33:34 +00:00
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2021-04-27 00:05:43 +00:00
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namespace fs = std::filesystem;
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2020-01-23 17:48:05 +00:00
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namespace
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{
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2020-03-09 01:03:43 +00:00
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const UInt64 FORCE_OPTIMIZE_SKIP_UNUSED_SHARDS_HAS_SHARDING_KEY = 1;
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const UInt64 FORCE_OPTIMIZE_SKIP_UNUSED_SHARDS_ALWAYS = 2;
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2020-08-15 13:25:30 +00:00
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const UInt64 DISTRIBUTED_GROUP_BY_NO_MERGE_AFTER_AGGREGATION = 2;
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2021-04-04 10:27:45 +00:00
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const UInt64 PARALLEL_DISTRIBUTED_INSERT_SELECT_ALL = 2;
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2020-01-23 17:48:05 +00:00
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}
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2021-01-27 18:43:41 +00:00
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namespace ProfileEvents
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{
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extern const Event DistributedRejectedInserts;
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extern const Event DistributedDelayedInserts;
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extern const Event DistributedDelayedInsertsMilliseconds;
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}
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2012-05-21 20:38:34 +00:00
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namespace DB
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{
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2016-01-11 21:46:36 +00:00
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namespace ErrorCodes
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{
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2021-03-09 19:00:38 +00:00
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extern const int LOGICAL_ERROR;
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2020-02-25 18:02:41 +00:00
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extern const int NOT_IMPLEMENTED;
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2017-04-01 07:20:54 +00:00
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extern const int STORAGE_REQUIRES_PARAMETER;
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2017-11-03 19:53:10 +00:00
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extern const int BAD_ARGUMENTS;
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2017-12-30 00:36:06 +00:00
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extern const int NUMBER_OF_ARGUMENTS_DOESNT_MATCH;
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extern const int INCORRECT_NUMBER_OF_COLUMNS;
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2018-03-16 02:08:31 +00:00
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extern const int INFINITE_LOOP;
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2018-06-05 19:46:49 +00:00
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extern const int TYPE_MISMATCH;
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2018-12-19 12:38:13 +00:00
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extern const int TOO_MANY_ROWS;
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2020-01-23 17:48:05 +00:00
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extern const int UNABLE_TO_SKIP_UNUSED_SHARDS;
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2021-02-02 02:25:19 +00:00
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extern const int INVALID_SHARD_ID;
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2021-02-28 05:24:39 +00:00
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extern const int ALTER_OF_COLUMN_IS_FORBIDDEN;
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2021-01-26 18:45:37 +00:00
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extern const int DISTRIBUTED_TOO_MANY_PENDING_BYTES;
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2021-01-27 18:43:41 +00:00
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extern const int ARGUMENT_OUT_OF_BOUND;
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2016-01-11 21:46:36 +00:00
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}
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2019-04-08 05:13:16 +00:00
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namespace ActionLocks
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{
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2019-04-22 15:11:16 +00:00
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extern const StorageActionBlockType DistributedSend;
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2019-04-08 05:13:16 +00:00
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}
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2016-01-11 21:46:36 +00:00
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2014-08-21 12:07:29 +00:00
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namespace
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{
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2017-04-01 07:20:54 +00:00
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2018-07-25 12:31:47 +00:00
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/// select query has database, table and table function names as AST pointers
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/// Creates a copy of query, changes database, table and table function names.
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2018-07-24 13:10:34 +00:00
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ASTPtr rewriteSelectQuery(const ASTPtr & query, const std::string & database, const std::string & table, ASTPtr table_function_ptr = nullptr)
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2017-05-10 06:39:37 +00:00
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{
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2018-02-25 00:50:53 +00:00
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auto modified_query_ast = query->clone();
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2019-07-26 17:43:42 +00:00
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ASTSelectQuery & select_query = modified_query_ast->as<ASTSelectQuery &>();
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2020-09-16 09:57:26 +00:00
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// Get rid of the settings clause so we don't send them to remote. Thus newly non-important
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// settings won't break any remote parser. It's also more reasonable since the query settings
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// are written into the query context and will be sent by the query pipeline.
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select_query.setExpression(ASTSelectQuery::Expression::SETTINGS, {});
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2020-04-01 14:21:37 +00:00
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if (table_function_ptr)
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select_query.addTableFunction(table_function_ptr);
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else
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select_query.replaceDatabaseAndTable(database, table);
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2019-07-26 17:43:42 +00:00
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2020-04-01 14:21:37 +00:00
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/// Restore long column names (cause our short names are ambiguous).
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/// TODO: aliased table functions & CREATE TABLE AS table function cases
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if (!table_function_ptr)
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2019-07-26 17:43:42 +00:00
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{
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RestoreQualifiedNamesVisitor::Data data;
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2020-04-01 14:21:37 +00:00
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data.distributed_table = DatabaseAndTableWithAlias(*getTableExpression(query->as<ASTSelectQuery &>(), 0));
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data.remote_table.database = database;
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data.remote_table.table = table;
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data.rename = true;
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RestoreQualifiedNamesVisitor(data).visit(modified_query_ast);
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2019-07-26 17:43:42 +00:00
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}
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2017-05-10 06:39:37 +00:00
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return modified_query_ast;
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}
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2018-11-23 17:39:16 +00:00
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/// The columns list in the original INSERT query is incorrect because inserted blocks are transformed
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/// to the form of the sample block of the Distributed table. So we rewrite it and add all columns from
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/// the sample block instead.
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2019-05-31 18:31:09 +00:00
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ASTPtr createInsertToRemoteTableQuery(const std::string & database, const std::string & table, const Block & sample_block_non_materialized)
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2017-05-10 06:39:37 +00:00
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{
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2018-11-23 17:39:16 +00:00
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auto query = std::make_shared<ASTInsertQuery>();
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2020-03-02 20:23:58 +00:00
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query->table_id = StorageID(database, table);
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2017-05-10 06:39:37 +00:00
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2019-05-31 18:31:09 +00:00
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auto columns = std::make_shared<ASTExpressionList>();
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query->columns = columns;
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query->children.push_back(columns);
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for (const auto & col : sample_block_non_materialized)
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columns->children.push_back(std::make_shared<ASTIdentifier>(col.name));
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2017-05-10 06:39:37 +00:00
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2018-11-23 17:39:16 +00:00
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return query;
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2017-05-10 06:39:37 +00:00
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}
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/// Calculate maximum number in file names in directory and all subdirectories.
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/// To ensure global order of data blocks yet to be sent across server restarts.
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2019-01-04 12:10:00 +00:00
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UInt64 getMaximumFileNumber(const std::string & dir_path)
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2017-05-10 06:39:37 +00:00
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{
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UInt64 res = 0;
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2019-07-31 22:37:41 +00:00
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std::filesystem::recursive_directory_iterator begin(dir_path);
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std::filesystem::recursive_directory_iterator end;
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2017-05-10 06:39:37 +00:00
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for (auto it = begin; it != end; ++it)
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2017-04-01 07:20:54 +00:00
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{
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2019-01-04 12:10:00 +00:00
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const auto & file_path = it->path();
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2017-04-01 07:20:54 +00:00
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2019-07-31 22:37:41 +00:00
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if (!std::filesystem::is_regular_file(*it) || !endsWith(file_path.filename().string(), ".bin"))
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2017-05-10 06:39:37 +00:00
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continue;
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2017-04-01 07:20:54 +00:00
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2017-05-10 06:39:37 +00:00
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UInt64 num = 0;
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try
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{
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2019-01-04 12:10:00 +00:00
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num = parse<UInt64>(file_path.filename().stem().string());
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2017-05-10 06:39:37 +00:00
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}
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catch (Exception & e)
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{
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2019-01-04 12:10:00 +00:00
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e.addMessage("Unexpected file name " + file_path.filename().string() + " found at " + file_path.parent_path().string() + ", should have numeric base name.");
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2017-05-10 06:39:37 +00:00
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throw;
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}
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if (num > res)
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res = num;
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2017-04-01 07:20:54 +00:00
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}
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2017-05-10 06:39:37 +00:00
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return res;
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}
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2019-08-19 20:28:24 +00:00
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std::string makeFormattedListOfShards(const ClusterPtr & cluster)
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{
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2020-11-09 19:07:38 +00:00
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WriteBufferFromOwnString buf;
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2019-08-19 20:28:24 +00:00
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bool head = true;
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2020-11-09 19:07:38 +00:00
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buf << "[";
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2019-08-19 20:28:24 +00:00
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for (const auto & shard_info : cluster->getShardsInfo())
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{
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2020-11-09 19:07:38 +00:00
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(head ? buf : buf << ", ") << shard_info.shard_num;
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2019-08-19 20:28:24 +00:00
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head = false;
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}
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2020-11-09 19:07:38 +00:00
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buf << "]";
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2019-08-19 20:28:24 +00:00
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2020-11-09 19:07:38 +00:00
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return buf.str();
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2019-08-19 20:28:24 +00:00
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}
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2021-04-10 23:33:54 +00:00
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ExpressionActionsPtr buildShardingKeyExpression(const ASTPtr & sharding_key, ContextPtr context, const NamesAndTypesList & columns, bool project)
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2020-03-22 10:37:35 +00:00
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{
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ASTPtr query = sharding_key;
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2020-07-22 17:13:05 +00:00
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auto syntax_result = TreeRewriter(context).analyze(query, columns);
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2020-03-22 10:37:35 +00:00
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return ExpressionAnalyzer(query, syntax_result, context).getActions(project);
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2014-08-13 12:52:30 +00:00
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}
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2020-06-16 18:49:04 +00:00
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bool isExpressionActionsDeterministics(const ExpressionActionsPtr & actions)
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{
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for (const auto & action : actions->getActions())
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{
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2020-11-10 14:54:59 +00:00
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if (action.node->type != ActionsDAG::ActionType::FUNCTION)
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2020-06-16 18:49:04 +00:00
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continue;
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2020-11-03 11:28:28 +00:00
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if (!action.node->function_base->isDeterministic())
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2020-06-16 18:49:04 +00:00
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return false;
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}
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return true;
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}
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2020-03-22 10:37:35 +00:00
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class ReplacingConstantExpressionsMatcher
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{
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public:
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using Data = Block;
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2014-08-13 12:52:30 +00:00
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2020-03-22 10:37:35 +00:00
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static bool needChildVisit(ASTPtr &, const ASTPtr &)
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{
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return true;
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}
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|
static void visit(ASTPtr & node, Block & block_with_constants)
|
|
|
|
{
|
|
|
|
if (!node->as<ASTFunction>())
|
|
|
|
return;
|
2017-06-06 18:48:38 +00:00
|
|
|
|
2020-03-22 10:37:35 +00:00
|
|
|
std::string name = node->getColumnName();
|
|
|
|
if (block_with_constants.has(name))
|
|
|
|
{
|
|
|
|
auto result = block_with_constants.getByName(name);
|
|
|
|
if (!isColumnConst(*result.column))
|
|
|
|
return;
|
|
|
|
|
2020-03-23 17:28:38 +00:00
|
|
|
node = std::make_shared<ASTLiteral>(assert_cast<const ColumnConst &>(*result.column).getField());
|
2020-03-22 10:37:35 +00:00
|
|
|
}
|
|
|
|
}
|
|
|
|
};
|
2020-03-23 17:28:38 +00:00
|
|
|
|
2020-06-18 09:08:24 +00:00
|
|
|
void replaceConstantExpressions(
|
|
|
|
ASTPtr & node,
|
2021-04-10 23:33:54 +00:00
|
|
|
ContextPtr context,
|
2020-06-18 09:08:24 +00:00
|
|
|
const NamesAndTypesList & columns,
|
|
|
|
ConstStoragePtr storage,
|
|
|
|
const StorageMetadataPtr & metadata_snapshot)
|
2018-11-08 15:43:14 +00:00
|
|
|
{
|
2020-07-22 17:13:05 +00:00
|
|
|
auto syntax_result = TreeRewriter(context).analyze(node, columns, storage, metadata_snapshot);
|
2020-03-22 10:37:35 +00:00
|
|
|
Block block_with_constants = KeyCondition::getBlockWithConstants(node, syntax_result, context);
|
|
|
|
|
|
|
|
InDepthNodeVisitor<ReplacingConstantExpressionsMatcher, true> visitor(block_with_constants);
|
|
|
|
visitor.visit(node);
|
2018-11-08 15:43:14 +00:00
|
|
|
}
|
2017-06-06 18:48:38 +00:00
|
|
|
|
2020-04-22 21:44:22 +00:00
|
|
|
/// Returns one of the following:
|
|
|
|
/// - QueryProcessingStage::Complete
|
|
|
|
/// - QueryProcessingStage::WithMergeableStateAfterAggregation
|
|
|
|
/// - none (in this case regular WithMergeableState should be used)
|
|
|
|
std::optional<QueryProcessingStage::Enum> getOptimizedQueryProcessingStage(const ASTPtr & query_ptr, bool extremes, const Block & sharding_key_block)
|
2020-04-01 18:38:01 +00:00
|
|
|
{
|
2020-04-22 21:44:22 +00:00
|
|
|
const auto & select = query_ptr->as<ASTSelectQuery &>();
|
|
|
|
|
|
|
|
auto sharding_block_has = [&](const auto & exprs, size_t limit = SIZE_MAX) -> bool
|
|
|
|
{
|
|
|
|
size_t i = 0;
|
|
|
|
for (auto & expr : exprs)
|
|
|
|
{
|
2020-09-03 01:39:36 +00:00
|
|
|
++i;
|
|
|
|
if (i > limit)
|
2020-04-22 21:44:22 +00:00
|
|
|
break;
|
|
|
|
|
|
|
|
auto id = expr->template as<ASTIdentifier>();
|
|
|
|
if (!id)
|
|
|
|
return false;
|
|
|
|
/// TODO: if GROUP BY contains multiIf()/if() it should contain only columns from sharding_key
|
2020-10-24 18:46:10 +00:00
|
|
|
if (!sharding_key_block.has(id->name()))
|
2020-04-22 21:44:22 +00:00
|
|
|
return false;
|
|
|
|
}
|
|
|
|
return true;
|
|
|
|
};
|
|
|
|
|
|
|
|
// GROUP BY qualifiers
|
|
|
|
// - TODO: WITH TOTALS can be implemented
|
|
|
|
// - TODO: WITH ROLLUP can be implemented (I guess)
|
|
|
|
if (select.group_by_with_totals || select.group_by_with_rollup || select.group_by_with_cube)
|
|
|
|
return {};
|
|
|
|
|
|
|
|
// TODO: extremes support can be implemented
|
|
|
|
if (extremes)
|
|
|
|
return {};
|
|
|
|
|
|
|
|
// DISTINCT
|
|
|
|
if (select.distinct)
|
|
|
|
{
|
|
|
|
if (!sharding_block_has(select.select()->children))
|
|
|
|
return {};
|
|
|
|
}
|
2020-04-01 18:38:01 +00:00
|
|
|
|
2020-04-22 21:44:22 +00:00
|
|
|
// GROUP BY
|
|
|
|
const ASTPtr group_by = select.groupBy();
|
|
|
|
if (!group_by)
|
|
|
|
{
|
|
|
|
if (!select.distinct)
|
|
|
|
return {};
|
|
|
|
}
|
|
|
|
else
|
|
|
|
{
|
|
|
|
if (!sharding_block_has(group_by->children, 1))
|
|
|
|
return {};
|
|
|
|
}
|
|
|
|
|
|
|
|
// ORDER BY
|
|
|
|
const ASTPtr order_by = select.orderBy();
|
|
|
|
if (order_by)
|
|
|
|
return QueryProcessingStage::WithMergeableStateAfterAggregation;
|
|
|
|
|
|
|
|
// LIMIT BY
|
|
|
|
// LIMIT
|
2020-12-02 17:11:39 +00:00
|
|
|
// OFFSET
|
|
|
|
if (select.limitBy() || select.limitLength() || select.limitOffset())
|
2020-04-22 21:44:22 +00:00
|
|
|
return QueryProcessingStage::WithMergeableStateAfterAggregation;
|
|
|
|
|
|
|
|
// Only simple SELECT FROM GROUP BY sharding_key can use Complete state.
|
|
|
|
return QueryProcessingStage::Complete;
|
|
|
|
}
|
|
|
|
|
|
|
|
size_t getClusterQueriedNodes(const Settings & settings, const ClusterPtr & cluster)
|
|
|
|
{
|
2020-04-01 18:38:01 +00:00
|
|
|
size_t num_local_shards = cluster->getLocalShardCount();
|
|
|
|
size_t num_remote_shards = cluster->getRemoteShardCount();
|
2020-04-22 21:44:22 +00:00
|
|
|
return (num_remote_shards * settings.max_parallel_replicas) + num_local_shards;
|
2020-04-01 18:38:01 +00:00
|
|
|
}
|
|
|
|
|
2020-03-26 18:25:26 +00:00
|
|
|
}
|
2020-03-22 10:37:35 +00:00
|
|
|
|
|
|
|
|
|
|
|
/// For destruction of std::unique_ptr of type that is incomplete in class definition.
|
|
|
|
StorageDistributed::~StorageDistributed() = default;
|
2020-01-20 17:54:52 +00:00
|
|
|
|
2020-04-24 09:20:09 +00:00
|
|
|
|
2020-04-28 10:38:57 +00:00
|
|
|
NamesAndTypesList StorageDistributed::getVirtuals() const
|
2020-04-27 13:55:30 +00:00
|
|
|
{
|
|
|
|
/// NOTE This is weird. Most of these virtual columns are part of MergeTree
|
|
|
|
/// tables info. But Distributed is general-purpose engine.
|
2020-04-28 10:38:57 +00:00
|
|
|
return NamesAndTypesList{
|
2020-04-27 13:55:30 +00:00
|
|
|
NameAndTypePair("_table", std::make_shared<DataTypeString>()),
|
|
|
|
NameAndTypePair("_part", std::make_shared<DataTypeString>()),
|
|
|
|
NameAndTypePair("_part_index", std::make_shared<DataTypeUInt64>()),
|
2020-11-20 17:23:53 +00:00
|
|
|
NameAndTypePair("_part_uuid", std::make_shared<DataTypeUUID>()),
|
2020-04-27 13:55:30 +00:00
|
|
|
NameAndTypePair("_partition_id", std::make_shared<DataTypeString>()),
|
|
|
|
NameAndTypePair("_sample_factor", std::make_shared<DataTypeFloat64>()),
|
|
|
|
NameAndTypePair("_shard_num", std::make_shared<DataTypeUInt32>()),
|
|
|
|
};
|
|
|
|
}
|
2020-04-24 09:20:09 +00:00
|
|
|
|
2014-09-30 03:08:47 +00:00
|
|
|
StorageDistributed::StorageDistributed(
|
2019-12-04 16:06:55 +00:00
|
|
|
const StorageID & id_,
|
2018-03-06 20:18:34 +00:00
|
|
|
const ColumnsDescription & columns_,
|
2019-08-24 21:20:20 +00:00
|
|
|
const ConstraintsDescription & constraints_,
|
2017-04-01 07:20:54 +00:00
|
|
|
const String & remote_database_,
|
|
|
|
const String & remote_table_,
|
|
|
|
const String & cluster_name_,
|
2021-04-10 23:33:54 +00:00
|
|
|
ContextPtr context_,
|
2017-04-01 07:20:54 +00:00
|
|
|
const ASTPtr & sharding_key_,
|
2020-07-23 14:10:48 +00:00
|
|
|
const String & storage_policy_name_,
|
2019-10-25 19:07:47 +00:00
|
|
|
const String & relative_data_path_,
|
2021-01-07 14:14:41 +00:00
|
|
|
const DistributedSettings & distributed_settings_,
|
2020-10-14 12:19:29 +00:00
|
|
|
bool attach_,
|
|
|
|
ClusterPtr owned_cluster_)
|
2020-04-27 13:55:30 +00:00
|
|
|
: IStorage(id_)
|
2021-04-10 23:33:54 +00:00
|
|
|
, WithContext(context_->getGlobalContext())
|
2019-12-04 16:06:55 +00:00
|
|
|
, remote_database(remote_database_)
|
|
|
|
, remote_table(remote_table_)
|
2020-05-30 21:57:37 +00:00
|
|
|
, log(&Poco::Logger::get("StorageDistributed (" + id_.table_name + ")"))
|
2020-10-14 12:19:29 +00:00
|
|
|
, owned_cluster(std::move(owned_cluster_))
|
2021-04-10 23:33:54 +00:00
|
|
|
, cluster_name(getContext()->getMacros()->expand(cluster_name_))
|
2019-12-04 16:06:55 +00:00
|
|
|
, has_sharding_key(sharding_key_)
|
2020-01-20 17:54:52 +00:00
|
|
|
, relative_data_path(relative_data_path_)
|
2021-01-07 14:14:41 +00:00
|
|
|
, distributed_settings(distributed_settings_)
|
2020-12-23 16:04:05 +00:00
|
|
|
, rng(randomSeed())
|
2014-09-30 03:08:47 +00:00
|
|
|
{
|
2020-06-19 15:39:41 +00:00
|
|
|
StorageInMemoryMetadata storage_metadata;
|
|
|
|
storage_metadata.setColumns(columns_);
|
|
|
|
storage_metadata.setConstraints(constraints_);
|
|
|
|
setInMemoryMetadata(storage_metadata);
|
2019-08-24 21:20:20 +00:00
|
|
|
|
2019-08-26 13:46:07 +00:00
|
|
|
if (sharding_key_)
|
|
|
|
{
|
2021-04-10 23:33:54 +00:00
|
|
|
sharding_key_expr = buildShardingKeyExpression(sharding_key_, getContext(), storage_metadata.getColumns().getAllPhysical(), false);
|
2019-08-26 13:46:07 +00:00
|
|
|
sharding_key_column_name = sharding_key_->getColumnName();
|
2020-06-16 18:49:04 +00:00
|
|
|
sharding_key_is_deterministic = isExpressionActionsDeterministics(sharding_key_expr);
|
2019-08-26 13:46:07 +00:00
|
|
|
}
|
|
|
|
|
2020-01-20 17:54:52 +00:00
|
|
|
if (!relative_data_path.empty())
|
2020-07-23 14:10:48 +00:00
|
|
|
{
|
2021-04-10 23:33:54 +00:00
|
|
|
storage_policy = getContext()->getStoragePolicy(storage_policy_name_);
|
2020-09-15 09:26:56 +00:00
|
|
|
data_volume = storage_policy->getVolume(0);
|
|
|
|
if (storage_policy->getVolumes().size() > 1)
|
|
|
|
LOG_WARNING(log, "Storage policy for Distributed table has multiple volumes. "
|
|
|
|
"Only {} volume will be used to store data. Other will be ignored.", data_volume->getName());
|
2020-07-23 14:10:48 +00:00
|
|
|
}
|
2020-01-20 17:54:52 +00:00
|
|
|
|
2018-03-16 02:08:31 +00:00
|
|
|
/// Sanity check. Skip check if the table is already created to allow the server to start.
|
2019-08-03 11:02:40 +00:00
|
|
|
if (!attach_ && !cluster_name.empty())
|
2018-03-16 02:08:31 +00:00
|
|
|
{
|
2021-04-10 23:33:54 +00:00
|
|
|
size_t num_local_shards = getContext()->getCluster(cluster_name)->getLocalShardCount();
|
2019-12-04 16:06:55 +00:00
|
|
|
if (num_local_shards && remote_database == id_.database_name && remote_table == id_.table_name)
|
|
|
|
throw Exception("Distributed table " + id_.table_name + " looks at itself", ErrorCodes::INFINITE_LOOP);
|
2018-03-16 02:08:31 +00:00
|
|
|
}
|
2014-09-30 03:08:47 +00:00
|
|
|
}
|
|
|
|
|
2017-03-09 03:34:09 +00:00
|
|
|
|
2018-07-24 13:10:34 +00:00
|
|
|
StorageDistributed::StorageDistributed(
|
2019-12-04 16:06:55 +00:00
|
|
|
const StorageID & id_,
|
2018-03-12 13:47:01 +00:00
|
|
|
const ColumnsDescription & columns_,
|
2019-08-24 21:20:20 +00:00
|
|
|
const ConstraintsDescription & constraints_,
|
2018-07-24 13:10:34 +00:00
|
|
|
ASTPtr remote_table_function_ptr_,
|
|
|
|
const String & cluster_name_,
|
2021-04-10 23:33:54 +00:00
|
|
|
ContextPtr context_,
|
2018-07-24 13:10:34 +00:00
|
|
|
const ASTPtr & sharding_key_,
|
2020-07-23 14:10:48 +00:00
|
|
|
const String & storage_policy_name_,
|
2019-10-25 19:07:47 +00:00
|
|
|
const String & relative_data_path_,
|
2021-01-07 14:14:41 +00:00
|
|
|
const DistributedSettings & distributed_settings_,
|
2020-10-14 12:19:29 +00:00
|
|
|
bool attach,
|
|
|
|
ClusterPtr owned_cluster_)
|
2021-04-12 17:07:01 +00:00
|
|
|
: StorageDistributed(id_, columns_, constraints_, String{}, String{}, cluster_name_, context_, sharding_key_,
|
2021-03-12 23:47:20 +00:00
|
|
|
storage_policy_name_, relative_data_path_, distributed_settings_, attach, std::move(owned_cluster_))
|
2018-07-24 13:10:34 +00:00
|
|
|
{
|
2019-12-04 16:06:55 +00:00
|
|
|
remote_table_function_ptr = std::move(remote_table_function_ptr_);
|
2018-07-24 13:10:34 +00:00
|
|
|
}
|
|
|
|
|
2020-11-07 21:30:40 +00:00
|
|
|
QueryProcessingStage::Enum StorageDistributed::getQueryProcessingStage(
|
2021-04-22 13:32:17 +00:00
|
|
|
ContextPtr local_context,
|
|
|
|
QueryProcessingStage::Enum to_stage,
|
|
|
|
const StorageMetadataPtr & metadata_snapshot,
|
|
|
|
SelectQueryInfo & query_info) const
|
2020-04-16 21:54:43 +00:00
|
|
|
{
|
2021-04-10 23:33:54 +00:00
|
|
|
const auto & settings = local_context->getSettingsRef();
|
2020-04-30 23:47:19 +00:00
|
|
|
|
2020-09-10 19:55:36 +00:00
|
|
|
ClusterPtr cluster = getCluster();
|
|
|
|
query_info.cluster = cluster;
|
|
|
|
|
|
|
|
/// Always calculate optimized cluster here, to avoid conditions during read()
|
|
|
|
/// (Anyway it will be calculated in the read())
|
2021-04-12 19:15:58 +00:00
|
|
|
if (getClusterQueriedNodes(settings, cluster) > 1 && settings.optimize_skip_unused_shards)
|
2020-09-10 19:55:36 +00:00
|
|
|
{
|
2021-04-10 23:33:54 +00:00
|
|
|
ClusterPtr optimized_cluster = getOptimizedCluster(local_context, metadata_snapshot, query_info.query);
|
2020-09-10 19:55:36 +00:00
|
|
|
if (optimized_cluster)
|
|
|
|
{
|
2021-03-12 23:47:20 +00:00
|
|
|
LOG_DEBUG(log, "Skipping irrelevant shards - the query will be sent to the following shards of the cluster (shard numbers): {}",
|
|
|
|
makeFormattedListOfShards(optimized_cluster));
|
2020-09-10 19:55:36 +00:00
|
|
|
cluster = optimized_cluster;
|
2021-03-29 19:02:34 +00:00
|
|
|
query_info.optimized_cluster = cluster;
|
2020-09-10 19:55:36 +00:00
|
|
|
}
|
|
|
|
else
|
|
|
|
{
|
2021-03-12 23:47:20 +00:00
|
|
|
LOG_DEBUG(log, "Unable to figure out irrelevant shards from WHERE/PREWHERE clauses - the query will be sent to all shards of the cluster{}",
|
|
|
|
has_sharding_key ? "" : " (no sharding key)");
|
2020-09-10 19:55:36 +00:00
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2020-04-22 21:44:22 +00:00
|
|
|
if (settings.distributed_group_by_no_merge)
|
2020-08-15 13:25:30 +00:00
|
|
|
{
|
|
|
|
if (settings.distributed_group_by_no_merge == DISTRIBUTED_GROUP_BY_NO_MERGE_AFTER_AGGREGATION)
|
|
|
|
return QueryProcessingStage::WithMergeableStateAfterAggregation;
|
|
|
|
else
|
|
|
|
return QueryProcessingStage::Complete;
|
|
|
|
}
|
2020-04-16 21:54:43 +00:00
|
|
|
|
2020-04-22 21:44:22 +00:00
|
|
|
/// Nested distributed query cannot return Complete stage,
|
|
|
|
/// since the parent query need to aggregate the results after.
|
|
|
|
if (to_stage == QueryProcessingStage::WithMergeableState)
|
|
|
|
return QueryProcessingStage::WithMergeableState;
|
|
|
|
|
|
|
|
/// If there is only one node, the query can be fully processed by the
|
|
|
|
/// shard, initiator will work as a proxy only.
|
|
|
|
if (getClusterQueriedNodes(settings, cluster) == 1)
|
|
|
|
return QueryProcessingStage::Complete;
|
|
|
|
|
|
|
|
if (settings.optimize_skip_unused_shards &&
|
|
|
|
settings.optimize_distributed_group_by_sharding_key &&
|
|
|
|
has_sharding_key &&
|
2020-10-16 21:58:06 +00:00
|
|
|
(settings.allow_nondeterministic_optimize_skip_unused_shards || sharding_key_is_deterministic))
|
2020-04-22 21:44:22 +00:00
|
|
|
{
|
|
|
|
Block sharding_key_block = sharding_key_expr->getSampleBlock();
|
2020-09-10 19:55:36 +00:00
|
|
|
auto stage = getOptimizedQueryProcessingStage(query_info.query, settings.extremes, sharding_key_block);
|
2020-04-22 21:44:22 +00:00
|
|
|
if (stage)
|
|
|
|
{
|
|
|
|
LOG_DEBUG(log, "Force processing stage to {}", QueryProcessingStage::toString(*stage));
|
|
|
|
return *stage;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
return QueryProcessingStage::WithMergeableState;
|
2020-03-18 00:57:00 +00:00
|
|
|
}
|
|
|
|
|
2020-08-03 13:54:14 +00:00
|
|
|
Pipe StorageDistributed::read(
|
2020-09-25 13:19:26 +00:00
|
|
|
const Names & column_names,
|
|
|
|
const StorageMetadataPtr & metadata_snapshot,
|
2020-11-10 12:02:22 +00:00
|
|
|
SelectQueryInfo & query_info,
|
2021-04-10 23:33:54 +00:00
|
|
|
ContextPtr local_context,
|
2020-09-25 13:19:26 +00:00
|
|
|
QueryProcessingStage::Enum processed_stage,
|
|
|
|
const size_t max_block_size,
|
|
|
|
const unsigned num_streams)
|
|
|
|
{
|
|
|
|
QueryPlan plan;
|
2021-04-10 23:33:54 +00:00
|
|
|
read(plan, column_names, metadata_snapshot, query_info, local_context, processed_stage, max_block_size, num_streams);
|
2021-03-04 17:38:12 +00:00
|
|
|
return plan.convertToPipe(
|
2021-04-10 23:33:54 +00:00
|
|
|
QueryPlanOptimizationSettings::fromContext(local_context),
|
|
|
|
BuildQueryPipelineSettings::fromContext(local_context));
|
2020-09-25 13:19:26 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
void StorageDistributed::read(
|
2020-09-18 14:16:53 +00:00
|
|
|
QueryPlan & query_plan,
|
2019-09-18 21:17:00 +00:00
|
|
|
const Names & column_names,
|
2020-06-17 14:37:21 +00:00
|
|
|
const StorageMetadataPtr & metadata_snapshot,
|
2020-09-20 17:52:17 +00:00
|
|
|
SelectQueryInfo & query_info,
|
2021-04-10 23:33:54 +00:00
|
|
|
ContextPtr local_context,
|
2018-04-19 14:47:09 +00:00
|
|
|
QueryProcessingStage::Enum processed_stage,
|
|
|
|
const size_t /*max_block_size*/,
|
|
|
|
const unsigned /*num_streams*/)
|
|
|
|
{
|
2017-04-01 07:20:54 +00:00
|
|
|
const auto & modified_query_ast = rewriteSelectQuery(
|
2018-07-24 13:10:34 +00:00
|
|
|
query_info.query, remote_database, remote_table, remote_table_function_ptr);
|
2015-02-10 20:48:17 +00:00
|
|
|
|
2019-08-09 13:37:42 +00:00
|
|
|
Block header =
|
2021-04-10 23:33:54 +00:00
|
|
|
InterpreterSelectQuery(query_info.query, local_context, SelectQueryOptions(processed_stage).analyze()).getSampleBlock();
|
2018-02-15 18:54:12 +00:00
|
|
|
|
2021-03-09 19:00:38 +00:00
|
|
|
/// Return directly (with correct header) if no shard to query.
|
2021-03-29 19:02:34 +00:00
|
|
|
if (query_info.getCluster()->getShardsInfo().empty())
|
2021-03-09 19:00:38 +00:00
|
|
|
{
|
|
|
|
Pipe pipe(std::make_shared<NullSource>(header));
|
|
|
|
auto read_from_pipe = std::make_unique<ReadFromPreparedSource>(std::move(pipe));
|
|
|
|
read_from_pipe->setStepDescription("Read from NullSource (Distributed)");
|
|
|
|
query_plan.addStep(std::move(read_from_pipe));
|
|
|
|
|
|
|
|
return;
|
|
|
|
}
|
2018-02-15 18:54:12 +00:00
|
|
|
|
2021-04-10 23:33:54 +00:00
|
|
|
const Scalars & scalars = local_context->hasQueryContext() ? local_context->getQueryContext()->getScalars() : Scalars{};
|
2019-10-19 20:36:35 +00:00
|
|
|
|
2019-09-18 21:17:00 +00:00
|
|
|
bool has_virtual_shard_num_column = std::find(column_names.begin(), column_names.end(), "_shard_num") != column_names.end();
|
2020-06-17 14:37:21 +00:00
|
|
|
if (has_virtual_shard_num_column && !isVirtualColumn("_shard_num", metadata_snapshot))
|
2019-09-18 21:17:00 +00:00
|
|
|
has_virtual_shard_num_column = false;
|
|
|
|
|
2018-09-10 03:59:48 +00:00
|
|
|
ClusterProxy::SelectStreamFactory select_stream_factory = remote_table_function_ptr
|
|
|
|
? ClusterProxy::SelectStreamFactory(
|
2021-04-10 23:33:54 +00:00
|
|
|
header, processed_stage, remote_table_function_ptr, scalars, has_virtual_shard_num_column, local_context->getExternalTables())
|
2018-07-25 12:31:47 +00:00
|
|
|
: ClusterProxy::SelectStreamFactory(
|
2021-04-10 23:33:54 +00:00
|
|
|
header,
|
|
|
|
processed_stage,
|
|
|
|
StorageID{remote_database, remote_table},
|
|
|
|
scalars,
|
|
|
|
has_virtual_shard_num_column,
|
|
|
|
local_context->getExternalTables());
|
2015-11-06 17:44:01 +00:00
|
|
|
|
2020-11-10 12:02:22 +00:00
|
|
|
ClusterProxy::executeQuery(query_plan, select_stream_factory, log,
|
2021-03-07 15:51:01 +00:00
|
|
|
modified_query_ast, local_context, query_info,
|
|
|
|
sharding_key_expr, sharding_key_column_name,
|
|
|
|
getCluster());
|
2021-03-09 19:00:38 +00:00
|
|
|
|
|
|
|
/// This is a bug, it is possible only when there is no shards to query, and this is handled earlier.
|
|
|
|
if (!query_plan.isInitialized())
|
|
|
|
throw Exception("Pipeline is not initialized", ErrorCodes::LOGICAL_ERROR);
|
2012-05-21 20:38:34 +00:00
|
|
|
}
|
|
|
|
|
2017-03-09 03:34:09 +00:00
|
|
|
|
2021-04-10 23:33:54 +00:00
|
|
|
BlockOutputStreamPtr StorageDistributed::write(const ASTPtr &, const StorageMetadataPtr & metadata_snapshot, ContextPtr local_context)
|
2014-08-12 13:46:46 +00:00
|
|
|
{
|
2018-03-16 02:08:31 +00:00
|
|
|
auto cluster = getCluster();
|
2021-04-10 23:33:54 +00:00
|
|
|
const auto & settings = local_context->getSettingsRef();
|
2016-10-10 08:44:52 +00:00
|
|
|
|
2018-01-25 12:18:27 +00:00
|
|
|
/// Ban an attempt to make async insert into the table belonging to DatabaseMemory
|
2021-02-02 02:25:19 +00:00
|
|
|
if (!storage_policy && !owned_cluster && !settings.insert_distributed_sync && !settings.insert_shard_id)
|
2018-01-25 12:18:27 +00:00
|
|
|
{
|
2021-01-05 23:54:22 +00:00
|
|
|
throw Exception("Storage " + getName() + " must have own data directory to enable asynchronous inserts",
|
2018-01-25 12:18:27 +00:00
|
|
|
ErrorCodes::BAD_ARGUMENTS);
|
|
|
|
}
|
2016-10-10 08:44:52 +00:00
|
|
|
|
2021-02-02 02:25:19 +00:00
|
|
|
auto shard_num = cluster->getLocalShardCount() + cluster->getRemoteShardCount();
|
|
|
|
|
2018-01-25 12:18:27 +00:00
|
|
|
/// If sharding key is not specified, then you can only write to a shard containing only one shard
|
2021-02-02 02:25:19 +00:00
|
|
|
if (!settings.insert_shard_id && !settings.insert_distributed_one_random_shard && !has_sharding_key && shard_num >= 2)
|
|
|
|
{
|
|
|
|
throw Exception(
|
|
|
|
"Method write is not supported by storage " + getName() + " with more than one shard and no sharding key provided",
|
|
|
|
ErrorCodes::STORAGE_REQUIRES_PARAMETER);
|
|
|
|
}
|
|
|
|
|
|
|
|
if (settings.insert_shard_id && settings.insert_shard_id > shard_num)
|
2018-01-25 12:18:27 +00:00
|
|
|
{
|
2021-02-02 02:25:19 +00:00
|
|
|
throw Exception("Shard id should be range from 1 to shard number", ErrorCodes::INVALID_SHARD_ID);
|
2018-01-25 12:18:27 +00:00
|
|
|
}
|
2014-08-21 12:07:29 +00:00
|
|
|
|
2018-01-25 12:18:27 +00:00
|
|
|
/// Force sync insertion if it is remote() table function
|
2021-02-02 02:25:19 +00:00
|
|
|
bool insert_sync = settings.insert_distributed_sync || settings.insert_shard_id || owned_cluster;
|
2017-11-02 14:01:11 +00:00
|
|
|
auto timeout = settings.insert_distributed_timeout;
|
|
|
|
|
2017-04-01 07:20:54 +00:00
|
|
|
/// DistributedBlockOutputStream will not own cluster, but will own ConnectionPools of the cluster
|
|
|
|
return std::make_shared<DistributedBlockOutputStream>(
|
2021-04-10 23:33:54 +00:00
|
|
|
local_context, *this, metadata_snapshot,
|
2021-01-05 23:54:22 +00:00
|
|
|
createInsertToRemoteTableQuery(
|
|
|
|
remote_database, remote_table, metadata_snapshot->getSampleBlockNonMaterialized()),
|
2021-04-15 14:31:23 +00:00
|
|
|
cluster, insert_sync, timeout, StorageID{remote_database, remote_table});
|
2014-08-12 13:46:46 +00:00
|
|
|
}
|
|
|
|
|
2017-03-09 03:34:09 +00:00
|
|
|
|
2021-04-10 23:33:54 +00:00
|
|
|
QueryPipelinePtr StorageDistributed::distributedWrite(const ASTInsertQuery & query, ContextPtr local_context)
|
2021-04-04 10:27:45 +00:00
|
|
|
{
|
2021-04-10 23:33:54 +00:00
|
|
|
const Settings & settings = local_context->getSettingsRef();
|
2021-04-04 10:27:45 +00:00
|
|
|
std::shared_ptr<StorageDistributed> storage_src;
|
|
|
|
auto & select = query.select->as<ASTSelectWithUnionQuery &>();
|
|
|
|
auto new_query = std::dynamic_pointer_cast<ASTInsertQuery>(query.clone());
|
|
|
|
if (select.list_of_selects->children.size() == 1)
|
|
|
|
{
|
|
|
|
if (auto * select_query = select.list_of_selects->children.at(0)->as<ASTSelectQuery>())
|
|
|
|
{
|
2021-04-10 23:33:54 +00:00
|
|
|
JoinedTables joined_tables(Context::createCopy(local_context), *select_query);
|
2021-04-04 10:27:45 +00:00
|
|
|
|
|
|
|
if (joined_tables.tablesCount() == 1)
|
|
|
|
{
|
|
|
|
storage_src = std::dynamic_pointer_cast<StorageDistributed>(joined_tables.getLeftTableStorage());
|
|
|
|
if (storage_src)
|
|
|
|
{
|
|
|
|
const auto select_with_union_query = std::make_shared<ASTSelectWithUnionQuery>();
|
|
|
|
select_with_union_query->list_of_selects = std::make_shared<ASTExpressionList>();
|
|
|
|
|
|
|
|
auto new_select_query = std::dynamic_pointer_cast<ASTSelectQuery>(select_query->clone());
|
|
|
|
select_with_union_query->list_of_selects->children.push_back(new_select_query);
|
|
|
|
|
|
|
|
new_select_query->replaceDatabaseAndTable(storage_src->getRemoteDatabaseName(), storage_src->getRemoteTableName());
|
|
|
|
|
|
|
|
new_query->select = select_with_union_query;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
if (!storage_src || storage_src->getClusterName() != getClusterName())
|
|
|
|
{
|
|
|
|
return nullptr;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (settings.parallel_distributed_insert_select == PARALLEL_DISTRIBUTED_INSERT_SELECT_ALL)
|
|
|
|
{
|
|
|
|
new_query->table_id = StorageID(getRemoteDatabaseName(), getRemoteTableName());
|
|
|
|
}
|
|
|
|
|
|
|
|
const auto & cluster = getCluster();
|
|
|
|
const auto & shards_info = cluster->getShardsInfo();
|
|
|
|
|
|
|
|
std::vector<std::unique_ptr<QueryPipeline>> pipelines;
|
|
|
|
|
|
|
|
String new_query_str = queryToString(new_query);
|
|
|
|
for (size_t shard_index : ext::range(0, shards_info.size()))
|
|
|
|
{
|
|
|
|
const auto & shard_info = shards_info[shard_index];
|
|
|
|
if (shard_info.isLocal())
|
|
|
|
{
|
2021-04-10 23:33:54 +00:00
|
|
|
InterpreterInsertQuery interpreter(new_query, local_context);
|
2021-04-04 10:27:45 +00:00
|
|
|
pipelines.emplace_back(std::make_unique<QueryPipeline>(interpreter.execute().pipeline));
|
|
|
|
}
|
|
|
|
else
|
|
|
|
{
|
|
|
|
auto timeouts = ConnectionTimeouts::getTCPTimeoutsWithFailover(settings);
|
|
|
|
auto connections = shard_info.pool->getMany(timeouts, &settings, PoolMode::GET_ONE);
|
|
|
|
if (connections.empty() || connections.front().isNull())
|
|
|
|
throw Exception(
|
|
|
|
"Expected exactly one connection for shard " + toString(shard_info.shard_num), ErrorCodes::LOGICAL_ERROR);
|
|
|
|
|
|
|
|
/// INSERT SELECT query returns empty block
|
2021-04-10 23:33:54 +00:00
|
|
|
auto in_stream = std::make_shared<RemoteBlockInputStream>(std::move(connections), new_query_str, Block{}, local_context);
|
2021-04-04 10:27:45 +00:00
|
|
|
pipelines.emplace_back(std::make_unique<QueryPipeline>());
|
|
|
|
pipelines.back()->init(Pipe(std::make_shared<SourceFromInputStream>(std::move(in_stream))));
|
|
|
|
pipelines.back()->setSinks([](const Block & header, QueryPipeline::StreamType) -> ProcessorPtr
|
|
|
|
{
|
|
|
|
return std::make_shared<EmptySink>(header);
|
|
|
|
});
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2021-04-10 23:33:54 +00:00
|
|
|
return std::make_unique<QueryPipeline>(QueryPipeline::unitePipelines(std::move(pipelines)));
|
2021-04-04 10:27:45 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
|
2021-04-10 23:33:54 +00:00
|
|
|
void StorageDistributed::checkAlterIsPossible(const AlterCommands & commands, ContextPtr local_context) const
|
2013-09-23 12:01:19 +00:00
|
|
|
{
|
2021-04-10 23:33:54 +00:00
|
|
|
auto name_deps = getDependentViewsByColumn(local_context);
|
2019-12-26 18:17:05 +00:00
|
|
|
for (const auto & command : commands)
|
|
|
|
{
|
|
|
|
if (command.type != AlterCommand::Type::ADD_COLUMN
|
|
|
|
&& command.type != AlterCommand::Type::MODIFY_COLUMN
|
|
|
|
&& command.type != AlterCommand::Type::DROP_COLUMN
|
2020-05-07 12:54:35 +00:00
|
|
|
&& command.type != AlterCommand::Type::COMMENT_COLUMN
|
|
|
|
&& command.type != AlterCommand::Type::RENAME_COLUMN)
|
2016-05-13 21:08:19 +00:00
|
|
|
|
2019-12-26 18:17:05 +00:00
|
|
|
throw Exception("Alter of type '" + alterTypeToString(command.type) + "' is not supported by storage " + getName(),
|
|
|
|
ErrorCodes::NOT_IMPLEMENTED);
|
2021-04-30 05:02:32 +00:00
|
|
|
if (command.type == AlterCommand::DROP_COLUMN && !command.clear)
|
2021-02-28 05:24:39 +00:00
|
|
|
{
|
2021-02-28 07:42:08 +00:00
|
|
|
const auto & deps_mv = name_deps[command.column_name];
|
2021-02-28 05:24:39 +00:00
|
|
|
if (!deps_mv.empty())
|
|
|
|
{
|
|
|
|
throw Exception(
|
|
|
|
"Trying to ALTER DROP column " + backQuoteIfNeed(command.column_name) + " which is referenced by materialized view "
|
|
|
|
+ toString(deps_mv),
|
|
|
|
ErrorCodes::ALTER_OF_COLUMN_IS_FORBIDDEN);
|
|
|
|
}
|
|
|
|
}
|
2019-12-26 18:17:05 +00:00
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2021-04-10 23:33:54 +00:00
|
|
|
void StorageDistributed::alter(const AlterCommands & params, ContextPtr local_context, TableLockHolder &)
|
2013-09-23 12:01:19 +00:00
|
|
|
{
|
2019-12-10 20:47:05 +00:00
|
|
|
auto table_id = getStorageID();
|
2019-08-26 14:50:34 +00:00
|
|
|
|
2021-04-10 23:33:54 +00:00
|
|
|
checkAlterIsPossible(params, local_context);
|
2020-06-09 17:28:29 +00:00
|
|
|
StorageInMemoryMetadata new_metadata = getInMemoryMetadata();
|
2021-04-10 23:33:54 +00:00
|
|
|
params.apply(new_metadata, local_context);
|
|
|
|
DatabaseCatalog::instance().getDatabase(table_id.database_name)->alterTable(local_context, table_id, new_metadata);
|
2020-06-15 16:55:33 +00:00
|
|
|
setInMemoryMetadata(new_metadata);
|
2013-09-23 12:01:19 +00:00
|
|
|
}
|
2014-02-04 15:44:15 +00:00
|
|
|
|
2017-03-09 03:34:09 +00:00
|
|
|
|
2017-06-06 17:06:14 +00:00
|
|
|
void StorageDistributed::startup()
|
|
|
|
{
|
2021-04-12 11:58:24 +00:00
|
|
|
if (remote_database.empty() && !remote_table_function_ptr && !getCluster()->maybeCrossReplication())
|
2020-05-23 22:24:01 +00:00
|
|
|
LOG_WARNING(log, "Name of remote database is empty. Default database will be used implicitly.");
|
2020-02-21 13:44:44 +00:00
|
|
|
|
2020-07-23 14:10:48 +00:00
|
|
|
if (!storage_policy)
|
2020-01-20 17:54:52 +00:00
|
|
|
return;
|
|
|
|
|
2020-09-15 09:26:56 +00:00
|
|
|
for (const DiskPtr & disk : data_volume->getDisks())
|
2021-01-09 12:26:37 +00:00
|
|
|
createDirectoryMonitors(disk);
|
2020-01-20 17:54:52 +00:00
|
|
|
|
|
|
|
for (const String & path : getDataPaths())
|
|
|
|
{
|
|
|
|
UInt64 inc = getMaximumFileNumber(path);
|
|
|
|
if (inc > file_names_increment.value)
|
|
|
|
file_names_increment.value.store(inc);
|
|
|
|
}
|
2020-05-23 22:24:01 +00:00
|
|
|
LOG_DEBUG(log, "Auto-increment is {}", file_names_increment.value);
|
2017-06-06 17:06:14 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
|
2014-08-13 11:26:13 +00:00
|
|
|
void StorageDistributed::shutdown()
|
|
|
|
{
|
2020-04-24 23:03:27 +00:00
|
|
|
monitors_blocker.cancelForever();
|
|
|
|
|
2020-04-24 23:03:26 +00:00
|
|
|
std::lock_guard lock(cluster_nodes_mutex);
|
Fix DROP TABLE for Distributed (racy with INSERT)
<details>
```
drop() on T1275:
0 DB::StorageDistributed::drop (this=0x7f9ed34f0000) at ../contrib/libcxx/include/__hash_table:966
1 0x000000000d557242 in DB::DatabaseOnDisk::dropTable (this=0x7f9fc22706d8, context=..., table_name=...)
at ../contrib/libcxx/include/new:340
2 0x000000000d6fcf7c in DB::InterpreterDropQuery::executeToTable (this=this@entry=0x7f9e42560dc0, query=...)
at ../contrib/libcxx/include/memory:3826
3 0x000000000d6ff5ee in DB::InterpreterDropQuery::execute (this=0x7f9e42560dc0) at ../src/Interpreters/InterpreterDropQuery.cpp:50
4 0x000000000daa40c0 in DB::executeQueryImpl (begin=<optimized out>, end=<optimized out>, context=..., internal=<optimized out>,
stage=DB::QueryProcessingStage::Complete, has_query_tail=false, istr=0x0) at ../src/Interpreters/executeQuery.cpp:420
5 0x000000000daa59df in DB::executeQuery (query=..., context=..., internal=internal@entry=false, stage=<optimized out>,
may_have_embedded_data=<optimized out>) at ../contrib/libcxx/include/string:1487
6 0x000000000e1369e6 in DB::TCPHandler::runImpl (this=this@entry=0x7f9ddf3a9000) at ../src/Server/TCPHandler.cpp:254
7 0x000000000e1379c9 in DB::TCPHandler::run (this=0x7f9ddf3a9000) at ../src/Server/TCPHandler.cpp:1326
8 0x000000001086fac7 in Poco::Net::TCPServerConnection::start (this=this@entry=0x7f9ddf3a9000)
at ../contrib/poco/Net/src/TCPServerConnection.cpp:43
9 0x000000001086ff2b in Poco::Net::TCPServerDispatcher::run (this=0x7f9e4eba5c00)
at ../contrib/poco/Net/src/TCPServerDispatcher.cpp:114
10 0x00000000109dbe8e in Poco::PooledThread::run (this=0x7f9e4a2d2f80) at ../contrib/poco/Foundation/src/ThreadPool.cpp:199
11 0x00000000109d78f9 in Poco::ThreadImpl::runnableEntry (pThread=<optimized out>)
at ../contrib/poco/Foundation/include/Poco/SharedPtr.h:401
12 0x00007f9fc3cccea7 in start_thread (arg=<optimized out>) at pthread_create.c:477
13 0x00007f9fc3bebeaf in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95
StorageDistributedDirectoryMonitor on T166:
0 DB::StorageDistributedDirectoryMonitor::StorageDistributedDirectoryMonitor (this=0x7f9ea7ab1400, storage_=..., path_=...,
pool_=..., monitor_blocker_=..., bg_pool_=...) at ../src/Storages/Distributed/DirectoryMonitor.cpp:81
1 0x000000000dbf684e in std::__1::make_unique<> () at ../contrib/libcxx/include/memory:3474
2 DB::StorageDistributed::requireDirectoryMonitor (this=0x7f9ed34f0000, disk=..., name=...)
at ../src/Storages/StorageDistributed.cpp:682
3 0x000000000de3d5fa in DB::DistributedBlockOutputStream::writeToShard (this=this@entry=0x7f9ed39c7418, block=..., dir_names=...)
at ../src/Storages/Distributed/DistributedBlockOutputStream.cpp:634
4 0x000000000de3e214 in DB::DistributedBlockOutputStream::writeAsyncImpl (this=this@entry=0x7f9ed39c7418, block=...,
shard_id=shard_id@entry=79) at ../src/Storages/Distributed/DistributedBlockOutputStream.cpp:539
5 0x000000000de3e47b in DB::DistributedBlockOutputStream::writeSplitAsync (this=this@entry=0x7f9ed39c7418, block=...)
at ../contrib/libcxx/include/vector:1546
6 0x000000000de3eab0 in DB::DistributedBlockOutputStream::writeAsync (block=..., this=0x7f9ed39c7418)
at ../src/Storages/Distributed/DistributedBlockOutputStream.cpp:141
7 DB::DistributedBlockOutputStream::write (this=0x7f9ed39c7418, block=...)
at ../src/Storages/Distributed/DistributedBlockOutputStream.cpp:135
8 0x000000000d73b376 in DB::PushingToViewsBlockOutputStream::write (this=this@entry=0x7f9ea7a8cf58, block=...)
at ../src/DataStreams/PushingToViewsBlockOutputStream.cpp:157
9 0x000000000d7853eb in DB::AddingDefaultBlockOutputStream::write (this=0x7f9ed383d118, block=...)
at ../contrib/libcxx/include/memory:3826
10 0x000000000d740790 in DB::SquashingBlockOutputStream::write (this=0x7f9ed383de18, block=...)
at ../contrib/libcxx/include/memory:3826
11 0x000000000d68c308 in DB::CountingBlockOutputStream::write (this=0x7f9ea7ac6d60, block=...)
at ../contrib/libcxx/include/memory:3826
12 0x000000000ddab449 in DB::StorageBuffer::writeBlockToDestination (this=this@entry=0x7f9fbd56a000, block=..., table=...)
at ../src/Storages/StorageBuffer.cpp:747
13 0x000000000ddabfa6 in DB::StorageBuffer::flushBuffer (this=this@entry=0x7f9fbd56a000, buffer=...,
check_thresholds=check_thresholds@entry=true, locked=locked@entry=false, reset_block_structure=reset_block_structure@entry=false)
at ../src/Storages/StorageBuffer.cpp:661
14 0x000000000ddac415 in DB::StorageBuffer::flushAllBuffers (reset_blocks_structure=false, check_thresholds=true, this=0x7f9fbd56a000)
at ../src/Storages/StorageBuffer.cpp:605
shutdown() on T1275:
0 DB::StorageDistributed::shutdown (this=0x7f9ed34f0000) at ../contrib/libcxx/include/atomic:1612
1 0x000000000d6fd938 in DB::InterpreterDropQuery::executeToTable (this=this@entry=0x7f98530c79a0, query=...)
at ../src/Storages/TableLockHolder.h:12
2 0x000000000d6ff5ee in DB::InterpreterDropQuery::execute (this=0x7f98530c79a0) at ../src/Interpreters/InterpreterDropQuery.cpp:50
3 0x000000000daa40c0 in DB::executeQueryImpl (begin=<optimized out>, end=<optimized out>, context=..., internal=<optimized out>,
stage=DB::QueryProcessingStage::Complete, has_query_tail=false, istr=0x0) at ../src/Interpreters/executeQuery.cpp:420
4 0x000000000daa59df in DB::executeQuery (query=..., context=..., internal=internal@entry=false, stage=<optimized out>,
may_have_embedded_data=<optimized out>) at ../contrib/libcxx/include/string:1487
5 0x000000000e1369e6 in DB::TCPHandler::runImpl (this=this@entry=0x7f9ddf3a9000) at ../src/Server/TCPHandler.cpp:254
6 0x000000000e1379c9 in DB::TCPHandler::run (this=0x7f9ddf3a9000) at ../src/Server/TCPHandler.cpp:1326
7 0x000000001086fac7 in Poco::Net::TCPServerConnection::start (this=this@entry=0x7f9ddf3a9000)
at ../contrib/poco/Net/src/TCPServerConnection.cpp:43
8 0x000000001086ff2b in Poco::Net::TCPServerDispatcher::run (this=0x7f9e4eba5c00)
at ../contrib/poco/Net/src/TCPServerDispatcher.cpp:114
9 0x00000000109dbe8e in Poco::PooledThread::run (this=0x7f9e4a2d2f80) at ../contrib/poco/Foundation/src/ThreadPool.cpp:199
10 0x00000000109d78f9 in Poco::ThreadImpl::runnableEntry (pThread=<optimized out>)
at ../contrib/poco/Foundation/include/Poco/SharedPtr.h:401
11 0x00007f9fc3cccea7 in start_thread (arg=<optimized out>) at pthread_create.c:477
12 0x00007f9fc3bebeaf in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95
```
</details>
2020-10-26 20:01:06 +00:00
|
|
|
|
|
|
|
LOG_DEBUG(log, "Joining background threads for async INSERT");
|
2017-07-27 15:24:39 +00:00
|
|
|
cluster_nodes_data.clear();
|
Fix DROP TABLE for Distributed (racy with INSERT)
<details>
```
drop() on T1275:
0 DB::StorageDistributed::drop (this=0x7f9ed34f0000) at ../contrib/libcxx/include/__hash_table:966
1 0x000000000d557242 in DB::DatabaseOnDisk::dropTable (this=0x7f9fc22706d8, context=..., table_name=...)
at ../contrib/libcxx/include/new:340
2 0x000000000d6fcf7c in DB::InterpreterDropQuery::executeToTable (this=this@entry=0x7f9e42560dc0, query=...)
at ../contrib/libcxx/include/memory:3826
3 0x000000000d6ff5ee in DB::InterpreterDropQuery::execute (this=0x7f9e42560dc0) at ../src/Interpreters/InterpreterDropQuery.cpp:50
4 0x000000000daa40c0 in DB::executeQueryImpl (begin=<optimized out>, end=<optimized out>, context=..., internal=<optimized out>,
stage=DB::QueryProcessingStage::Complete, has_query_tail=false, istr=0x0) at ../src/Interpreters/executeQuery.cpp:420
5 0x000000000daa59df in DB::executeQuery (query=..., context=..., internal=internal@entry=false, stage=<optimized out>,
may_have_embedded_data=<optimized out>) at ../contrib/libcxx/include/string:1487
6 0x000000000e1369e6 in DB::TCPHandler::runImpl (this=this@entry=0x7f9ddf3a9000) at ../src/Server/TCPHandler.cpp:254
7 0x000000000e1379c9 in DB::TCPHandler::run (this=0x7f9ddf3a9000) at ../src/Server/TCPHandler.cpp:1326
8 0x000000001086fac7 in Poco::Net::TCPServerConnection::start (this=this@entry=0x7f9ddf3a9000)
at ../contrib/poco/Net/src/TCPServerConnection.cpp:43
9 0x000000001086ff2b in Poco::Net::TCPServerDispatcher::run (this=0x7f9e4eba5c00)
at ../contrib/poco/Net/src/TCPServerDispatcher.cpp:114
10 0x00000000109dbe8e in Poco::PooledThread::run (this=0x7f9e4a2d2f80) at ../contrib/poco/Foundation/src/ThreadPool.cpp:199
11 0x00000000109d78f9 in Poco::ThreadImpl::runnableEntry (pThread=<optimized out>)
at ../contrib/poco/Foundation/include/Poco/SharedPtr.h:401
12 0x00007f9fc3cccea7 in start_thread (arg=<optimized out>) at pthread_create.c:477
13 0x00007f9fc3bebeaf in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95
StorageDistributedDirectoryMonitor on T166:
0 DB::StorageDistributedDirectoryMonitor::StorageDistributedDirectoryMonitor (this=0x7f9ea7ab1400, storage_=..., path_=...,
pool_=..., monitor_blocker_=..., bg_pool_=...) at ../src/Storages/Distributed/DirectoryMonitor.cpp:81
1 0x000000000dbf684e in std::__1::make_unique<> () at ../contrib/libcxx/include/memory:3474
2 DB::StorageDistributed::requireDirectoryMonitor (this=0x7f9ed34f0000, disk=..., name=...)
at ../src/Storages/StorageDistributed.cpp:682
3 0x000000000de3d5fa in DB::DistributedBlockOutputStream::writeToShard (this=this@entry=0x7f9ed39c7418, block=..., dir_names=...)
at ../src/Storages/Distributed/DistributedBlockOutputStream.cpp:634
4 0x000000000de3e214 in DB::DistributedBlockOutputStream::writeAsyncImpl (this=this@entry=0x7f9ed39c7418, block=...,
shard_id=shard_id@entry=79) at ../src/Storages/Distributed/DistributedBlockOutputStream.cpp:539
5 0x000000000de3e47b in DB::DistributedBlockOutputStream::writeSplitAsync (this=this@entry=0x7f9ed39c7418, block=...)
at ../contrib/libcxx/include/vector:1546
6 0x000000000de3eab0 in DB::DistributedBlockOutputStream::writeAsync (block=..., this=0x7f9ed39c7418)
at ../src/Storages/Distributed/DistributedBlockOutputStream.cpp:141
7 DB::DistributedBlockOutputStream::write (this=0x7f9ed39c7418, block=...)
at ../src/Storages/Distributed/DistributedBlockOutputStream.cpp:135
8 0x000000000d73b376 in DB::PushingToViewsBlockOutputStream::write (this=this@entry=0x7f9ea7a8cf58, block=...)
at ../src/DataStreams/PushingToViewsBlockOutputStream.cpp:157
9 0x000000000d7853eb in DB::AddingDefaultBlockOutputStream::write (this=0x7f9ed383d118, block=...)
at ../contrib/libcxx/include/memory:3826
10 0x000000000d740790 in DB::SquashingBlockOutputStream::write (this=0x7f9ed383de18, block=...)
at ../contrib/libcxx/include/memory:3826
11 0x000000000d68c308 in DB::CountingBlockOutputStream::write (this=0x7f9ea7ac6d60, block=...)
at ../contrib/libcxx/include/memory:3826
12 0x000000000ddab449 in DB::StorageBuffer::writeBlockToDestination (this=this@entry=0x7f9fbd56a000, block=..., table=...)
at ../src/Storages/StorageBuffer.cpp:747
13 0x000000000ddabfa6 in DB::StorageBuffer::flushBuffer (this=this@entry=0x7f9fbd56a000, buffer=...,
check_thresholds=check_thresholds@entry=true, locked=locked@entry=false, reset_block_structure=reset_block_structure@entry=false)
at ../src/Storages/StorageBuffer.cpp:661
14 0x000000000ddac415 in DB::StorageBuffer::flushAllBuffers (reset_blocks_structure=false, check_thresholds=true, this=0x7f9fbd56a000)
at ../src/Storages/StorageBuffer.cpp:605
shutdown() on T1275:
0 DB::StorageDistributed::shutdown (this=0x7f9ed34f0000) at ../contrib/libcxx/include/atomic:1612
1 0x000000000d6fd938 in DB::InterpreterDropQuery::executeToTable (this=this@entry=0x7f98530c79a0, query=...)
at ../src/Storages/TableLockHolder.h:12
2 0x000000000d6ff5ee in DB::InterpreterDropQuery::execute (this=0x7f98530c79a0) at ../src/Interpreters/InterpreterDropQuery.cpp:50
3 0x000000000daa40c0 in DB::executeQueryImpl (begin=<optimized out>, end=<optimized out>, context=..., internal=<optimized out>,
stage=DB::QueryProcessingStage::Complete, has_query_tail=false, istr=0x0) at ../src/Interpreters/executeQuery.cpp:420
4 0x000000000daa59df in DB::executeQuery (query=..., context=..., internal=internal@entry=false, stage=<optimized out>,
may_have_embedded_data=<optimized out>) at ../contrib/libcxx/include/string:1487
5 0x000000000e1369e6 in DB::TCPHandler::runImpl (this=this@entry=0x7f9ddf3a9000) at ../src/Server/TCPHandler.cpp:254
6 0x000000000e1379c9 in DB::TCPHandler::run (this=0x7f9ddf3a9000) at ../src/Server/TCPHandler.cpp:1326
7 0x000000001086fac7 in Poco::Net::TCPServerConnection::start (this=this@entry=0x7f9ddf3a9000)
at ../contrib/poco/Net/src/TCPServerConnection.cpp:43
8 0x000000001086ff2b in Poco::Net::TCPServerDispatcher::run (this=0x7f9e4eba5c00)
at ../contrib/poco/Net/src/TCPServerDispatcher.cpp:114
9 0x00000000109dbe8e in Poco::PooledThread::run (this=0x7f9e4a2d2f80) at ../contrib/poco/Foundation/src/ThreadPool.cpp:199
10 0x00000000109d78f9 in Poco::ThreadImpl::runnableEntry (pThread=<optimized out>)
at ../contrib/poco/Foundation/include/Poco/SharedPtr.h:401
11 0x00007f9fc3cccea7 in start_thread (arg=<optimized out>) at pthread_create.c:477
12 0x00007f9fc3bebeaf in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95
```
</details>
2020-10-26 20:01:06 +00:00
|
|
|
LOG_DEBUG(log, "Background threads for async INSERT joined");
|
2014-08-13 11:26:13 +00:00
|
|
|
}
|
2020-07-16 20:35:23 +00:00
|
|
|
void StorageDistributed::drop()
|
|
|
|
{
|
Fix DROP TABLE for Distributed (racy with INSERT)
<details>
```
drop() on T1275:
0 DB::StorageDistributed::drop (this=0x7f9ed34f0000) at ../contrib/libcxx/include/__hash_table:966
1 0x000000000d557242 in DB::DatabaseOnDisk::dropTable (this=0x7f9fc22706d8, context=..., table_name=...)
at ../contrib/libcxx/include/new:340
2 0x000000000d6fcf7c in DB::InterpreterDropQuery::executeToTable (this=this@entry=0x7f9e42560dc0, query=...)
at ../contrib/libcxx/include/memory:3826
3 0x000000000d6ff5ee in DB::InterpreterDropQuery::execute (this=0x7f9e42560dc0) at ../src/Interpreters/InterpreterDropQuery.cpp:50
4 0x000000000daa40c0 in DB::executeQueryImpl (begin=<optimized out>, end=<optimized out>, context=..., internal=<optimized out>,
stage=DB::QueryProcessingStage::Complete, has_query_tail=false, istr=0x0) at ../src/Interpreters/executeQuery.cpp:420
5 0x000000000daa59df in DB::executeQuery (query=..., context=..., internal=internal@entry=false, stage=<optimized out>,
may_have_embedded_data=<optimized out>) at ../contrib/libcxx/include/string:1487
6 0x000000000e1369e6 in DB::TCPHandler::runImpl (this=this@entry=0x7f9ddf3a9000) at ../src/Server/TCPHandler.cpp:254
7 0x000000000e1379c9 in DB::TCPHandler::run (this=0x7f9ddf3a9000) at ../src/Server/TCPHandler.cpp:1326
8 0x000000001086fac7 in Poco::Net::TCPServerConnection::start (this=this@entry=0x7f9ddf3a9000)
at ../contrib/poco/Net/src/TCPServerConnection.cpp:43
9 0x000000001086ff2b in Poco::Net::TCPServerDispatcher::run (this=0x7f9e4eba5c00)
at ../contrib/poco/Net/src/TCPServerDispatcher.cpp:114
10 0x00000000109dbe8e in Poco::PooledThread::run (this=0x7f9e4a2d2f80) at ../contrib/poco/Foundation/src/ThreadPool.cpp:199
11 0x00000000109d78f9 in Poco::ThreadImpl::runnableEntry (pThread=<optimized out>)
at ../contrib/poco/Foundation/include/Poco/SharedPtr.h:401
12 0x00007f9fc3cccea7 in start_thread (arg=<optimized out>) at pthread_create.c:477
13 0x00007f9fc3bebeaf in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95
StorageDistributedDirectoryMonitor on T166:
0 DB::StorageDistributedDirectoryMonitor::StorageDistributedDirectoryMonitor (this=0x7f9ea7ab1400, storage_=..., path_=...,
pool_=..., monitor_blocker_=..., bg_pool_=...) at ../src/Storages/Distributed/DirectoryMonitor.cpp:81
1 0x000000000dbf684e in std::__1::make_unique<> () at ../contrib/libcxx/include/memory:3474
2 DB::StorageDistributed::requireDirectoryMonitor (this=0x7f9ed34f0000, disk=..., name=...)
at ../src/Storages/StorageDistributed.cpp:682
3 0x000000000de3d5fa in DB::DistributedBlockOutputStream::writeToShard (this=this@entry=0x7f9ed39c7418, block=..., dir_names=...)
at ../src/Storages/Distributed/DistributedBlockOutputStream.cpp:634
4 0x000000000de3e214 in DB::DistributedBlockOutputStream::writeAsyncImpl (this=this@entry=0x7f9ed39c7418, block=...,
shard_id=shard_id@entry=79) at ../src/Storages/Distributed/DistributedBlockOutputStream.cpp:539
5 0x000000000de3e47b in DB::DistributedBlockOutputStream::writeSplitAsync (this=this@entry=0x7f9ed39c7418, block=...)
at ../contrib/libcxx/include/vector:1546
6 0x000000000de3eab0 in DB::DistributedBlockOutputStream::writeAsync (block=..., this=0x7f9ed39c7418)
at ../src/Storages/Distributed/DistributedBlockOutputStream.cpp:141
7 DB::DistributedBlockOutputStream::write (this=0x7f9ed39c7418, block=...)
at ../src/Storages/Distributed/DistributedBlockOutputStream.cpp:135
8 0x000000000d73b376 in DB::PushingToViewsBlockOutputStream::write (this=this@entry=0x7f9ea7a8cf58, block=...)
at ../src/DataStreams/PushingToViewsBlockOutputStream.cpp:157
9 0x000000000d7853eb in DB::AddingDefaultBlockOutputStream::write (this=0x7f9ed383d118, block=...)
at ../contrib/libcxx/include/memory:3826
10 0x000000000d740790 in DB::SquashingBlockOutputStream::write (this=0x7f9ed383de18, block=...)
at ../contrib/libcxx/include/memory:3826
11 0x000000000d68c308 in DB::CountingBlockOutputStream::write (this=0x7f9ea7ac6d60, block=...)
at ../contrib/libcxx/include/memory:3826
12 0x000000000ddab449 in DB::StorageBuffer::writeBlockToDestination (this=this@entry=0x7f9fbd56a000, block=..., table=...)
at ../src/Storages/StorageBuffer.cpp:747
13 0x000000000ddabfa6 in DB::StorageBuffer::flushBuffer (this=this@entry=0x7f9fbd56a000, buffer=...,
check_thresholds=check_thresholds@entry=true, locked=locked@entry=false, reset_block_structure=reset_block_structure@entry=false)
at ../src/Storages/StorageBuffer.cpp:661
14 0x000000000ddac415 in DB::StorageBuffer::flushAllBuffers (reset_blocks_structure=false, check_thresholds=true, this=0x7f9fbd56a000)
at ../src/Storages/StorageBuffer.cpp:605
shutdown() on T1275:
0 DB::StorageDistributed::shutdown (this=0x7f9ed34f0000) at ../contrib/libcxx/include/atomic:1612
1 0x000000000d6fd938 in DB::InterpreterDropQuery::executeToTable (this=this@entry=0x7f98530c79a0, query=...)
at ../src/Storages/TableLockHolder.h:12
2 0x000000000d6ff5ee in DB::InterpreterDropQuery::execute (this=0x7f98530c79a0) at ../src/Interpreters/InterpreterDropQuery.cpp:50
3 0x000000000daa40c0 in DB::executeQueryImpl (begin=<optimized out>, end=<optimized out>, context=..., internal=<optimized out>,
stage=DB::QueryProcessingStage::Complete, has_query_tail=false, istr=0x0) at ../src/Interpreters/executeQuery.cpp:420
4 0x000000000daa59df in DB::executeQuery (query=..., context=..., internal=internal@entry=false, stage=<optimized out>,
may_have_embedded_data=<optimized out>) at ../contrib/libcxx/include/string:1487
5 0x000000000e1369e6 in DB::TCPHandler::runImpl (this=this@entry=0x7f9ddf3a9000) at ../src/Server/TCPHandler.cpp:254
6 0x000000000e1379c9 in DB::TCPHandler::run (this=0x7f9ddf3a9000) at ../src/Server/TCPHandler.cpp:1326
7 0x000000001086fac7 in Poco::Net::TCPServerConnection::start (this=this@entry=0x7f9ddf3a9000)
at ../contrib/poco/Net/src/TCPServerConnection.cpp:43
8 0x000000001086ff2b in Poco::Net::TCPServerDispatcher::run (this=0x7f9e4eba5c00)
at ../contrib/poco/Net/src/TCPServerDispatcher.cpp:114
9 0x00000000109dbe8e in Poco::PooledThread::run (this=0x7f9e4a2d2f80) at ../contrib/poco/Foundation/src/ThreadPool.cpp:199
10 0x00000000109d78f9 in Poco::ThreadImpl::runnableEntry (pThread=<optimized out>)
at ../contrib/poco/Foundation/include/Poco/SharedPtr.h:401
11 0x00007f9fc3cccea7 in start_thread (arg=<optimized out>) at pthread_create.c:477
12 0x00007f9fc3bebeaf in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95
```
</details>
2020-10-26 20:01:06 +00:00
|
|
|
// Some INSERT in-between shutdown() and drop() can call
|
|
|
|
// requireDirectoryMonitor() again, so call shutdown() to clear them, but
|
|
|
|
// when the drop() (this function) executed none of INSERT is allowed in
|
|
|
|
// parallel.
|
|
|
|
//
|
|
|
|
// And second time shutdown() should be fast, since none of
|
|
|
|
// DirectoryMonitor should do anything, because ActionBlocker is canceled
|
|
|
|
// (in shutdown()).
|
|
|
|
shutdown();
|
2020-07-16 20:35:23 +00:00
|
|
|
|
|
|
|
// Distributed table w/o sharding_key does not allows INSERTs
|
|
|
|
if (relative_data_path.empty())
|
|
|
|
return;
|
|
|
|
|
|
|
|
LOG_DEBUG(log, "Removing pending blocks for async INSERT from filesystem on DROP TABLE");
|
|
|
|
|
2020-09-15 09:26:56 +00:00
|
|
|
auto disks = data_volume->getDisks();
|
2020-07-16 20:35:23 +00:00
|
|
|
for (const auto & disk : disks)
|
|
|
|
disk->removeRecursive(relative_data_path);
|
|
|
|
|
|
|
|
LOG_DEBUG(log, "Removed");
|
|
|
|
}
|
2014-08-13 11:26:13 +00:00
|
|
|
|
2020-01-20 17:54:52 +00:00
|
|
|
Strings StorageDistributed::getDataPaths() const
|
|
|
|
{
|
|
|
|
Strings paths;
|
|
|
|
|
|
|
|
if (relative_data_path.empty())
|
|
|
|
return paths;
|
|
|
|
|
2020-09-15 09:26:56 +00:00
|
|
|
for (const DiskPtr & disk : data_volume->getDisks())
|
2020-01-20 17:54:52 +00:00
|
|
|
paths.push_back(disk->getPath() + relative_data_path);
|
|
|
|
|
|
|
|
return paths;
|
|
|
|
}
|
2017-03-09 03:34:09 +00:00
|
|
|
|
2021-04-10 23:33:54 +00:00
|
|
|
void StorageDistributed::truncate(const ASTPtr &, const StorageMetadataPtr &, ContextPtr, TableExclusiveLockHolder &)
|
2018-04-21 00:35:20 +00:00
|
|
|
{
|
2018-06-09 15:48:22 +00:00
|
|
|
std::lock_guard lock(cluster_nodes_mutex);
|
2018-04-21 00:35:20 +00:00
|
|
|
|
2020-07-16 20:35:23 +00:00
|
|
|
LOG_DEBUG(log, "Removing pending blocks for async INSERT from filesystem on TRUNCATE TABLE");
|
|
|
|
|
2018-06-09 15:48:22 +00:00
|
|
|
for (auto it = cluster_nodes_data.begin(); it != cluster_nodes_data.end();)
|
2018-04-21 00:35:20 +00:00
|
|
|
{
|
2021-02-08 19:07:30 +00:00
|
|
|
it->second.directory_monitor->shutdownAndDropAllData();
|
2018-06-09 15:48:22 +00:00
|
|
|
it = cluster_nodes_data.erase(it);
|
2018-04-21 00:35:20 +00:00
|
|
|
}
|
2020-07-16 20:35:23 +00:00
|
|
|
|
|
|
|
LOG_DEBUG(log, "Removed");
|
2018-04-21 00:35:20 +00:00
|
|
|
}
|
2017-03-09 03:34:09 +00:00
|
|
|
|
2020-03-29 07:43:40 +00:00
|
|
|
StoragePolicyPtr StorageDistributed::getStoragePolicy() const
|
|
|
|
{
|
2020-07-23 14:10:48 +00:00
|
|
|
return storage_policy;
|
2020-03-29 07:43:40 +00:00
|
|
|
}
|
|
|
|
|
2021-01-09 12:26:37 +00:00
|
|
|
void StorageDistributed::createDirectoryMonitors(const DiskPtr & disk)
|
2014-08-13 11:26:13 +00:00
|
|
|
{
|
2021-01-09 12:26:37 +00:00
|
|
|
const std::string path(disk->getPath() + relative_data_path);
|
2021-04-27 00:05:43 +00:00
|
|
|
fs::create_directories(path);
|
2014-08-14 11:50:36 +00:00
|
|
|
|
2019-07-31 22:37:41 +00:00
|
|
|
std::filesystem::directory_iterator begin(path);
|
|
|
|
std::filesystem::directory_iterator end;
|
2017-05-10 06:39:37 +00:00
|
|
|
for (auto it = begin; it != end; ++it)
|
2020-11-04 18:58:43 +00:00
|
|
|
{
|
|
|
|
const auto & dir_path = it->path();
|
|
|
|
if (std::filesystem::is_directory(dir_path))
|
|
|
|
{
|
|
|
|
const auto & tmp_path = dir_path / "tmp";
|
|
|
|
|
|
|
|
/// "tmp" created by DistributedBlockOutputStream
|
|
|
|
if (std::filesystem::is_directory(tmp_path) && std::filesystem::is_empty(tmp_path))
|
|
|
|
std::filesystem::remove(tmp_path);
|
|
|
|
|
|
|
|
if (std::filesystem::is_empty(dir_path))
|
|
|
|
{
|
2020-11-22 17:13:40 +00:00
|
|
|
LOG_DEBUG(log, "Removing {} (used for async INSERT into Distributed)", dir_path.string());
|
2020-11-04 18:58:43 +00:00
|
|
|
/// Will be created by DistributedBlockOutputStream on demand.
|
|
|
|
std::filesystem::remove(dir_path);
|
|
|
|
}
|
|
|
|
else
|
|
|
|
{
|
|
|
|
requireDirectoryMonitor(disk, dir_path.filename().string());
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
2014-08-13 11:26:13 +00:00
|
|
|
}
|
|
|
|
|
2017-03-09 03:34:09 +00:00
|
|
|
|
2021-01-09 12:26:37 +00:00
|
|
|
StorageDistributedDirectoryMonitor& StorageDistributed::requireDirectoryMonitor(const DiskPtr & disk, const std::string & name)
|
2017-07-27 15:24:39 +00:00
|
|
|
{
|
2021-01-09 12:26:37 +00:00
|
|
|
const std::string & disk_path = disk->getPath();
|
|
|
|
const std::string key(disk_path + name);
|
2017-07-27 15:24:39 +00:00
|
|
|
|
2018-02-07 13:02:47 +00:00
|
|
|
std::lock_guard lock(cluster_nodes_mutex);
|
2020-01-20 17:54:52 +00:00
|
|
|
auto & node_data = cluster_nodes_data[key];
|
2020-04-14 18:12:08 +00:00
|
|
|
if (!node_data.directory_monitor)
|
|
|
|
{
|
2020-06-03 00:10:39 +00:00
|
|
|
node_data.connection_pool = StorageDistributedDirectoryMonitor::createPool(name, *this);
|
2020-04-14 18:12:08 +00:00
|
|
|
node_data.directory_monitor = std::make_unique<StorageDistributedDirectoryMonitor>(
|
2021-01-09 12:26:37 +00:00
|
|
|
*this, disk, relative_data_path + name,
|
|
|
|
node_data.connection_pool,
|
|
|
|
monitors_blocker,
|
2021-04-10 23:33:54 +00:00
|
|
|
getContext()->getDistributedSchedulePool());
|
2020-04-14 18:12:08 +00:00
|
|
|
}
|
|
|
|
return *node_data.directory_monitor;
|
2014-08-19 08:04:13 +00:00
|
|
|
}
|
|
|
|
|
2020-06-03 23:50:47 +00:00
|
|
|
std::vector<StorageDistributedDirectoryMonitor::Status> StorageDistributed::getDirectoryMonitorsStatuses() const
|
2020-06-02 23:47:32 +00:00
|
|
|
{
|
2020-06-03 23:50:47 +00:00
|
|
|
std::vector<StorageDistributedDirectoryMonitor::Status> statuses;
|
|
|
|
std::lock_guard lock(cluster_nodes_mutex);
|
2020-06-06 15:57:52 +00:00
|
|
|
statuses.reserve(cluster_nodes_data.size());
|
2020-06-04 17:23:46 +00:00
|
|
|
for (const auto & node : cluster_nodes_data)
|
2020-06-03 23:50:47 +00:00
|
|
|
statuses.push_back(node.second.directory_monitor->getStatus());
|
|
|
|
return statuses;
|
2020-06-02 23:47:32 +00:00
|
|
|
}
|
|
|
|
|
2021-01-26 18:45:36 +00:00
|
|
|
std::optional<UInt64> StorageDistributed::totalBytes(const Settings &) const
|
|
|
|
{
|
|
|
|
UInt64 total_bytes = 0;
|
|
|
|
for (const auto & status : getDirectoryMonitorsStatuses())
|
|
|
|
total_bytes += status.bytes_count;
|
|
|
|
return total_bytes;
|
|
|
|
}
|
|
|
|
|
2015-09-18 13:36:10 +00:00
|
|
|
size_t StorageDistributed::getShardCount() const
|
|
|
|
{
|
2018-03-16 02:08:31 +00:00
|
|
|
return getCluster()->getShardCount();
|
2016-10-10 08:44:52 +00:00
|
|
|
}
|
|
|
|
|
2020-01-20 17:54:52 +00:00
|
|
|
ClusterPtr StorageDistributed::getCluster() const
|
2017-07-27 15:24:39 +00:00
|
|
|
{
|
2021-04-10 23:33:54 +00:00
|
|
|
return owned_cluster ? owned_cluster : getContext()->getCluster(cluster_name);
|
2019-04-08 05:13:16 +00:00
|
|
|
}
|
|
|
|
|
2021-04-10 23:33:54 +00:00
|
|
|
ClusterPtr StorageDistributed::getOptimizedCluster(
|
|
|
|
ContextPtr local_context, const StorageMetadataPtr & metadata_snapshot, const ASTPtr & query_ptr) const
|
2020-03-24 07:51:54 +00:00
|
|
|
{
|
|
|
|
ClusterPtr cluster = getCluster();
|
2021-04-10 23:33:54 +00:00
|
|
|
const Settings & settings = local_context->getSettingsRef();
|
2020-03-24 07:51:54 +00:00
|
|
|
|
2020-10-16 21:58:06 +00:00
|
|
|
bool sharding_key_is_usable = settings.allow_nondeterministic_optimize_skip_unused_shards || sharding_key_is_deterministic;
|
|
|
|
|
|
|
|
if (has_sharding_key && sharding_key_is_usable)
|
2020-03-24 07:51:54 +00:00
|
|
|
{
|
2021-04-10 23:33:54 +00:00
|
|
|
ClusterPtr optimized = skipUnusedShards(cluster, query_ptr, metadata_snapshot, local_context);
|
2020-03-24 07:51:54 +00:00
|
|
|
if (optimized)
|
|
|
|
return optimized;
|
|
|
|
}
|
|
|
|
|
|
|
|
UInt64 force = settings.force_optimize_skip_unused_shards;
|
|
|
|
if (force)
|
|
|
|
{
|
2020-11-09 19:07:38 +00:00
|
|
|
WriteBufferFromOwnString exception_message;
|
2020-03-24 07:51:54 +00:00
|
|
|
if (!has_sharding_key)
|
|
|
|
exception_message << "No sharding key";
|
2020-10-16 21:58:06 +00:00
|
|
|
else if (!sharding_key_is_usable)
|
2020-06-16 18:49:04 +00:00
|
|
|
exception_message << "Sharding key is not deterministic";
|
2020-03-24 07:51:54 +00:00
|
|
|
else
|
|
|
|
exception_message << "Sharding key " << sharding_key_column_name << " is not used";
|
|
|
|
|
|
|
|
if (force == FORCE_OPTIMIZE_SKIP_UNUSED_SHARDS_ALWAYS)
|
|
|
|
throw Exception(exception_message.str(), ErrorCodes::UNABLE_TO_SKIP_UNUSED_SHARDS);
|
|
|
|
if (force == FORCE_OPTIMIZE_SKIP_UNUSED_SHARDS_HAS_SHARDING_KEY && has_sharding_key)
|
|
|
|
throw Exception(exception_message.str(), ErrorCodes::UNABLE_TO_SKIP_UNUSED_SHARDS);
|
|
|
|
}
|
|
|
|
|
2021-03-30 05:02:26 +00:00
|
|
|
return {};
|
2020-03-24 07:51:54 +00:00
|
|
|
}
|
|
|
|
|
2020-05-01 08:31:05 +00:00
|
|
|
IColumn::Selector StorageDistributed::createSelector(const ClusterPtr cluster, const ColumnWithTypeAndName & result)
|
2020-04-30 23:37:55 +00:00
|
|
|
{
|
|
|
|
const auto & slot_to_shard = cluster->getSlotToShard();
|
|
|
|
|
|
|
|
// If result.type is DataTypeLowCardinality, do shard according to its dictionaryType
|
|
|
|
#define CREATE_FOR_TYPE(TYPE) \
|
|
|
|
if (typeid_cast<const DataType##TYPE *>(result.type.get())) \
|
|
|
|
return createBlockSelector<TYPE>(*result.column, slot_to_shard); \
|
|
|
|
else if (auto * type_low_cardinality = typeid_cast<const DataTypeLowCardinality *>(result.type.get())) \
|
|
|
|
if (typeid_cast<const DataType ## TYPE *>(type_low_cardinality->getDictionaryType().get())) \
|
|
|
|
return createBlockSelector<TYPE>(*result.column->convertToFullColumnIfLowCardinality(), slot_to_shard);
|
|
|
|
|
|
|
|
CREATE_FOR_TYPE(UInt8)
|
|
|
|
CREATE_FOR_TYPE(UInt16)
|
|
|
|
CREATE_FOR_TYPE(UInt32)
|
|
|
|
CREATE_FOR_TYPE(UInt64)
|
|
|
|
CREATE_FOR_TYPE(Int8)
|
|
|
|
CREATE_FOR_TYPE(Int16)
|
|
|
|
CREATE_FOR_TYPE(Int32)
|
|
|
|
CREATE_FOR_TYPE(Int64)
|
|
|
|
|
|
|
|
#undef CREATE_FOR_TYPE
|
|
|
|
|
|
|
|
throw Exception{"Sharding key expression does not evaluate to an integer type", ErrorCodes::TYPE_MISMATCH};
|
|
|
|
}
|
|
|
|
|
2018-12-19 12:38:13 +00:00
|
|
|
/// Returns a new cluster with fewer shards if constant folding for `sharding_key_expr` is possible
|
2019-08-19 20:28:24 +00:00
|
|
|
/// using constraints from "PREWHERE" and "WHERE" conditions, otherwise returns `nullptr`
|
2020-06-17 16:39:58 +00:00
|
|
|
ClusterPtr StorageDistributed::skipUnusedShards(
|
|
|
|
ClusterPtr cluster,
|
|
|
|
const ASTPtr & query_ptr,
|
|
|
|
const StorageMetadataPtr & metadata_snapshot,
|
2021-04-10 23:33:54 +00:00
|
|
|
ContextPtr local_context) const
|
2018-12-19 12:38:13 +00:00
|
|
|
{
|
2020-03-24 07:51:54 +00:00
|
|
|
const auto & select = query_ptr->as<ASTSelectQuery &>();
|
2018-12-19 12:38:13 +00:00
|
|
|
|
2019-08-19 20:28:24 +00:00
|
|
|
if (!select.prewhere() && !select.where())
|
|
|
|
{
|
2018-12-19 12:38:13 +00:00
|
|
|
return nullptr;
|
2019-08-19 20:28:24 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
ASTPtr condition_ast;
|
|
|
|
if (select.prewhere() && select.where())
|
|
|
|
{
|
|
|
|
condition_ast = makeASTFunction("and", select.prewhere()->clone(), select.where()->clone());
|
|
|
|
}
|
|
|
|
else
|
|
|
|
{
|
|
|
|
condition_ast = select.prewhere() ? select.prewhere()->clone() : select.where()->clone();
|
|
|
|
}
|
2018-12-19 12:38:13 +00:00
|
|
|
|
2021-04-10 23:33:54 +00:00
|
|
|
replaceConstantExpressions(condition_ast, local_context, metadata_snapshot->getColumns().getAll(), shared_from_this(), metadata_snapshot);
|
2018-12-19 12:38:13 +00:00
|
|
|
|
2021-04-10 23:33:54 +00:00
|
|
|
size_t limit = local_context->getSettingsRef().optimize_skip_unused_shards_limit;
|
2021-03-08 07:05:56 +00:00
|
|
|
if (!limit || limit > SSIZE_MAX)
|
|
|
|
{
|
|
|
|
throw Exception("optimize_skip_unused_shards_limit out of range (0, {}]", ErrorCodes::ARGUMENT_OUT_OF_BOUND, SSIZE_MAX);
|
|
|
|
}
|
|
|
|
// To interpret limit==0 as limit is reached
|
|
|
|
++limit;
|
|
|
|
const auto blocks = evaluateExpressionOverConstantCondition(condition_ast, sharding_key_expr, limit);
|
|
|
|
|
|
|
|
if (!limit)
|
2018-12-19 12:38:13 +00:00
|
|
|
{
|
2021-03-08 07:05:56 +00:00
|
|
|
LOG_TRACE(log,
|
|
|
|
"Number of values for sharding key exceeds optimize_skip_unused_shards_limit={}, "
|
|
|
|
"try to increase it, but note that this may increase query processing time.",
|
2021-04-10 23:33:54 +00:00
|
|
|
local_context->getSettingsRef().optimize_skip_unused_shards_limit);
|
2018-12-19 12:38:13 +00:00
|
|
|
return nullptr;
|
|
|
|
}
|
|
|
|
|
|
|
|
// Can't get definite answer if we can skip any shards
|
|
|
|
if (!blocks)
|
|
|
|
{
|
|
|
|
return nullptr;
|
|
|
|
}
|
|
|
|
|
|
|
|
std::set<int> shards;
|
|
|
|
|
|
|
|
for (const auto & block : *blocks)
|
|
|
|
{
|
|
|
|
if (!block.has(sharding_key_column_name))
|
|
|
|
throw Exception("sharding_key_expr should evaluate as a single row", ErrorCodes::TOO_MANY_ROWS);
|
|
|
|
|
2020-03-18 03:27:32 +00:00
|
|
|
const ColumnWithTypeAndName & result = block.getByName(sharding_key_column_name);
|
2018-12-19 12:38:13 +00:00
|
|
|
const auto selector = createSelector(cluster, result);
|
|
|
|
|
|
|
|
shards.insert(selector.begin(), selector.end());
|
|
|
|
}
|
|
|
|
|
|
|
|
return cluster->getClusterWithMultipleShards({shards.begin(), shards.end()});
|
|
|
|
}
|
|
|
|
|
2019-04-08 05:13:16 +00:00
|
|
|
ActionLock StorageDistributed::getActionLock(StorageActionBlockType type)
|
|
|
|
{
|
2019-04-22 15:11:16 +00:00
|
|
|
if (type == ActionLocks::DistributedSend)
|
2019-04-08 05:13:16 +00:00
|
|
|
return monitors_blocker.cancel();
|
|
|
|
return {};
|
|
|
|
}
|
|
|
|
|
2021-04-10 23:33:54 +00:00
|
|
|
void StorageDistributed::flushClusterNodesAllData(ContextPtr local_context)
|
2019-04-08 05:13:16 +00:00
|
|
|
{
|
2021-02-10 20:07:28 +00:00
|
|
|
/// Sync SYSTEM FLUSH DISTRIBUTED with TRUNCATE
|
2021-04-10 23:33:54 +00:00
|
|
|
auto table_lock = lockForShare(local_context->getCurrentQueryId(), local_context->getSettingsRef().lock_acquire_timeout);
|
2021-02-10 20:07:28 +00:00
|
|
|
|
2021-02-08 19:07:30 +00:00
|
|
|
std::vector<std::shared_ptr<StorageDistributedDirectoryMonitor>> directory_monitors;
|
|
|
|
|
|
|
|
{
|
|
|
|
std::lock_guard lock(cluster_nodes_mutex);
|
|
|
|
|
|
|
|
directory_monitors.reserve(cluster_nodes_data.size());
|
|
|
|
for (auto & node : cluster_nodes_data)
|
|
|
|
directory_monitors.push_back(node.second.directory_monitor);
|
|
|
|
}
|
2019-04-08 05:13:16 +00:00
|
|
|
|
|
|
|
/// TODO: Maybe it should be executed in parallel
|
2021-02-08 19:07:30 +00:00
|
|
|
for (auto & node : directory_monitors)
|
|
|
|
node->flushAllData();
|
2019-04-08 05:13:16 +00:00
|
|
|
}
|
|
|
|
|
2020-04-07 14:05:51 +00:00
|
|
|
void StorageDistributed::rename(const String & new_path_to_table_data, const StorageID & new_table_id)
|
2019-12-19 19:39:49 +00:00
|
|
|
{
|
2020-09-18 19:25:56 +00:00
|
|
|
assert(relative_data_path != new_path_to_table_data);
|
|
|
|
if (!relative_data_path.empty())
|
2020-01-20 17:54:52 +00:00
|
|
|
renameOnDisk(new_path_to_table_data);
|
2020-04-07 14:05:51 +00:00
|
|
|
renameInMemory(new_table_id);
|
2020-01-20 17:54:52 +00:00
|
|
|
}
|
2020-07-23 14:10:48 +00:00
|
|
|
|
|
|
|
|
2020-12-23 16:04:05 +00:00
|
|
|
size_t StorageDistributed::getRandomShardIndex(const Cluster::ShardsInfo & shards)
|
|
|
|
{
|
|
|
|
|
|
|
|
UInt32 total_weight = 0;
|
|
|
|
for (const auto & shard : shards)
|
|
|
|
total_weight += shard.weight;
|
|
|
|
|
|
|
|
assert(total_weight > 0);
|
|
|
|
|
|
|
|
size_t res;
|
|
|
|
{
|
|
|
|
std::lock_guard lock(rng_mutex);
|
|
|
|
res = std::uniform_int_distribution<size_t>(0, total_weight - 1)(rng);
|
|
|
|
}
|
|
|
|
|
|
|
|
for (auto i = 0ul, s = shards.size(); i < s; ++i)
|
|
|
|
{
|
|
|
|
if (shards[i].weight > res)
|
|
|
|
return i;
|
|
|
|
res -= shards[i].weight;
|
|
|
|
}
|
|
|
|
|
|
|
|
__builtin_unreachable();
|
|
|
|
}
|
|
|
|
|
|
|
|
|
2020-01-20 17:54:52 +00:00
|
|
|
void StorageDistributed::renameOnDisk(const String & new_path_to_table_data)
|
|
|
|
{
|
2020-09-15 09:26:56 +00:00
|
|
|
for (const DiskPtr & disk : data_volume->getDisks())
|
2019-12-19 19:39:49 +00:00
|
|
|
{
|
2020-09-18 19:08:53 +00:00
|
|
|
disk->moveDirectory(relative_data_path, new_path_to_table_data);
|
2020-01-20 17:54:52 +00:00
|
|
|
|
2020-09-18 19:08:53 +00:00
|
|
|
auto new_path = disk->getPath() + new_path_to_table_data;
|
2020-05-23 22:24:01 +00:00
|
|
|
LOG_DEBUG(log, "Updating path to {}", new_path);
|
2020-01-20 17:54:52 +00:00
|
|
|
|
2019-12-19 19:39:49 +00:00
|
|
|
std::lock_guard lock(cluster_nodes_mutex);
|
|
|
|
for (auto & node : cluster_nodes_data)
|
2021-01-09 12:26:37 +00:00
|
|
|
node.second.directory_monitor->updatePath(new_path_to_table_data);
|
2019-12-19 19:39:49 +00:00
|
|
|
}
|
2020-01-20 17:54:52 +00:00
|
|
|
|
|
|
|
relative_data_path = new_path_to_table_data;
|
2019-12-19 19:39:49 +00:00
|
|
|
}
|
|
|
|
|
2021-01-27 18:43:41 +00:00
|
|
|
void StorageDistributed::delayInsertOrThrowIfNeeded() const
|
2021-01-26 18:45:37 +00:00
|
|
|
{
|
2021-01-27 18:43:41 +00:00
|
|
|
if (!distributed_settings.bytes_to_throw_insert &&
|
|
|
|
!distributed_settings.bytes_to_delay_insert)
|
2021-01-26 18:45:37 +00:00
|
|
|
return;
|
|
|
|
|
2021-04-10 23:33:54 +00:00
|
|
|
UInt64 total_bytes = *totalBytes(getContext()->getSettingsRef());
|
2021-01-27 18:43:41 +00:00
|
|
|
|
|
|
|
if (distributed_settings.bytes_to_throw_insert && total_bytes > distributed_settings.bytes_to_throw_insert)
|
2021-01-26 18:45:37 +00:00
|
|
|
{
|
2021-01-27 18:43:41 +00:00
|
|
|
ProfileEvents::increment(ProfileEvents::DistributedRejectedInserts);
|
2021-01-26 18:45:37 +00:00
|
|
|
throw Exception(ErrorCodes::DISTRIBUTED_TOO_MANY_PENDING_BYTES,
|
|
|
|
"Too many bytes pending for async INSERT: {} (bytes_to_throw_insert={})",
|
|
|
|
formatReadableSizeWithBinarySuffix(total_bytes),
|
|
|
|
formatReadableSizeWithBinarySuffix(distributed_settings.bytes_to_throw_insert));
|
|
|
|
}
|
2021-01-27 18:43:41 +00:00
|
|
|
|
|
|
|
if (distributed_settings.bytes_to_delay_insert && total_bytes > distributed_settings.bytes_to_delay_insert)
|
|
|
|
{
|
|
|
|
/// Step is 5% of the delay and minimal one second.
|
|
|
|
/// NOTE: max_delay_to_insert is in seconds, and step is in ms.
|
|
|
|
const size_t step_ms = std::min<double>(1., double(distributed_settings.max_delay_to_insert) * 1'000 * 0.05);
|
|
|
|
UInt64 delayed_ms = 0;
|
|
|
|
|
|
|
|
do {
|
|
|
|
delayed_ms += step_ms;
|
|
|
|
std::this_thread::sleep_for(std::chrono::milliseconds(step_ms));
|
2021-04-10 23:33:54 +00:00
|
|
|
} while (*totalBytes(getContext()->getSettingsRef()) > distributed_settings.bytes_to_delay_insert && delayed_ms < distributed_settings.max_delay_to_insert*1000);
|
2021-01-27 18:43:41 +00:00
|
|
|
|
|
|
|
ProfileEvents::increment(ProfileEvents::DistributedDelayedInserts);
|
|
|
|
ProfileEvents::increment(ProfileEvents::DistributedDelayedInsertsMilliseconds, delayed_ms);
|
|
|
|
|
2021-04-10 23:33:54 +00:00
|
|
|
UInt64 new_total_bytes = *totalBytes(getContext()->getSettingsRef());
|
2021-01-27 18:43:41 +00:00
|
|
|
LOG_INFO(log, "Too many bytes pending for async INSERT: was {}, now {}, INSERT was delayed to {} ms",
|
|
|
|
formatReadableSizeWithBinarySuffix(total_bytes),
|
|
|
|
formatReadableSizeWithBinarySuffix(new_total_bytes),
|
|
|
|
delayed_ms);
|
|
|
|
|
|
|
|
if (new_total_bytes > distributed_settings.bytes_to_delay_insert)
|
|
|
|
{
|
|
|
|
ProfileEvents::increment(ProfileEvents::DistributedRejectedInserts);
|
|
|
|
throw Exception(ErrorCodes::DISTRIBUTED_TOO_MANY_PENDING_BYTES,
|
|
|
|
"Too many bytes pending for async INSERT: {} (bytes_to_delay_insert={})",
|
|
|
|
formatReadableSizeWithBinarySuffix(new_total_bytes),
|
|
|
|
formatReadableSizeWithBinarySuffix(distributed_settings.bytes_to_delay_insert));
|
|
|
|
}
|
|
|
|
}
|
2021-01-26 18:45:37 +00:00
|
|
|
}
|
2017-12-30 00:36:06 +00:00
|
|
|
|
|
|
|
void registerStorageDistributed(StorageFactory & factory)
|
|
|
|
{
|
|
|
|
factory.registerStorage("Distributed", [](const StorageFactory::Arguments & args)
|
|
|
|
{
|
|
|
|
/** Arguments of engine is following:
|
|
|
|
* - name of cluster in configuration;
|
|
|
|
* - name of remote database;
|
|
|
|
* - name of remote table;
|
2020-01-20 17:54:52 +00:00
|
|
|
* - policy to store data in;
|
2017-12-30 00:36:06 +00:00
|
|
|
*
|
|
|
|
* Remote database may be specified in following form:
|
|
|
|
* - identifier;
|
|
|
|
* - constant expression with string result, like currentDatabase();
|
|
|
|
* -- string literal as specific case;
|
|
|
|
* - empty string means 'use default database from cluster'.
|
2021-01-07 14:14:41 +00:00
|
|
|
*
|
|
|
|
* Distributed engine also supports SETTINGS clause.
|
2017-12-30 00:36:06 +00:00
|
|
|
*/
|
|
|
|
|
|
|
|
ASTs & engine_args = args.engine_args;
|
|
|
|
|
2020-01-20 17:54:52 +00:00
|
|
|
if (engine_args.size() < 3 || engine_args.size() > 5)
|
|
|
|
throw Exception(
|
|
|
|
"Storage Distributed requires from 3 to 5 parameters - "
|
|
|
|
"name of configuration section with list of remote servers, "
|
|
|
|
"name of remote database, "
|
|
|
|
"name of remote table, "
|
|
|
|
"sharding key expression (optional), "
|
|
|
|
"policy to store data in (optional).",
|
|
|
|
ErrorCodes::NUMBER_OF_ARGUMENTS_DOESNT_MATCH);
|
2017-12-30 00:36:06 +00:00
|
|
|
|
2020-02-21 13:44:44 +00:00
|
|
|
String cluster_name = getClusterNameAndMakeLiteral(engine_args[0]);
|
2017-12-30 00:36:06 +00:00
|
|
|
|
2021-04-10 23:33:54 +00:00
|
|
|
engine_args[1] = evaluateConstantExpressionOrIdentifierAsLiteral(engine_args[1], args.getLocalContext());
|
|
|
|
engine_args[2] = evaluateConstantExpressionOrIdentifierAsLiteral(engine_args[2], args.getLocalContext());
|
2017-12-30 00:36:06 +00:00
|
|
|
|
2019-03-15 17:09:14 +00:00
|
|
|
String remote_database = engine_args[1]->as<ASTLiteral &>().value.safeGet<String>();
|
|
|
|
String remote_table = engine_args[2]->as<ASTLiteral &>().value.safeGet<String>();
|
2017-12-30 00:36:06 +00:00
|
|
|
|
2020-01-20 17:54:52 +00:00
|
|
|
const auto & sharding_key = engine_args.size() >= 4 ? engine_args[3] : nullptr;
|
2020-07-23 12:46:06 +00:00
|
|
|
const auto & storage_policy = engine_args.size() >= 5 ? engine_args[4]->as<ASTLiteral &>().value.safeGet<String>() : "default";
|
2017-12-30 00:36:06 +00:00
|
|
|
|
|
|
|
/// Check that sharding_key exists in the table and has numeric type.
|
|
|
|
if (sharding_key)
|
|
|
|
{
|
2021-04-10 23:33:54 +00:00
|
|
|
auto sharding_expr = buildShardingKeyExpression(sharding_key, args.getContext(), args.columns.getAllPhysical(), true);
|
2017-12-30 00:36:06 +00:00
|
|
|
const Block & block = sharding_expr->getSampleBlock();
|
|
|
|
|
|
|
|
if (block.columns() != 1)
|
|
|
|
throw Exception("Sharding expression must return exactly one column", ErrorCodes::INCORRECT_NUMBER_OF_COLUMNS);
|
|
|
|
|
|
|
|
auto type = block.getByPosition(0).type;
|
|
|
|
|
|
|
|
if (!type->isValueRepresentedByInteger())
|
|
|
|
throw Exception("Sharding expression has type " + type->getName() +
|
|
|
|
", but should be one of integer type", ErrorCodes::TYPE_MISMATCH);
|
|
|
|
}
|
|
|
|
|
2021-01-07 14:14:41 +00:00
|
|
|
/// TODO: move some arguments from the arguments to the SETTINGS.
|
|
|
|
DistributedSettings distributed_settings;
|
|
|
|
if (args.storage_def->settings)
|
|
|
|
{
|
|
|
|
distributed_settings.loadFromQuery(*args.storage_def);
|
|
|
|
}
|
|
|
|
|
2021-01-27 18:43:41 +00:00
|
|
|
if (distributed_settings.max_delay_to_insert < 1)
|
|
|
|
throw Exception(ErrorCodes::ARGUMENT_OUT_OF_BOUND,
|
|
|
|
"max_delay_to_insert cannot be less then 1");
|
|
|
|
|
|
|
|
if (distributed_settings.bytes_to_throw_insert && distributed_settings.bytes_to_delay_insert &&
|
|
|
|
distributed_settings.bytes_to_throw_insert <= distributed_settings.bytes_to_delay_insert)
|
|
|
|
{
|
|
|
|
throw Exception(ErrorCodes::ARGUMENT_OUT_OF_BOUND,
|
|
|
|
"bytes_to_throw_insert cannot be less or equal to bytes_to_delay_insert (since it is handled first)");
|
|
|
|
}
|
|
|
|
|
2017-12-30 00:36:06 +00:00
|
|
|
return StorageDistributed::create(
|
2019-12-04 16:06:55 +00:00
|
|
|
args.table_id, args.columns, args.constraints,
|
2017-12-30 00:36:06 +00:00
|
|
|
remote_database, remote_table, cluster_name,
|
2021-04-10 23:33:54 +00:00
|
|
|
args.getContext(),
|
2020-01-20 17:54:52 +00:00
|
|
|
sharding_key,
|
|
|
|
storage_policy,
|
|
|
|
args.relative_data_path,
|
2021-01-07 14:14:41 +00:00
|
|
|
distributed_settings,
|
2018-03-16 02:08:31 +00:00
|
|
|
args.attach);
|
2020-04-06 05:19:40 +00:00
|
|
|
},
|
|
|
|
{
|
2021-01-07 14:14:41 +00:00
|
|
|
.supports_settings = true,
|
2021-01-08 11:42:17 +00:00
|
|
|
.supports_parallel_insert = true,
|
2020-04-06 05:19:40 +00:00
|
|
|
.source_access_type = AccessType::REMOTE,
|
2017-12-30 00:36:06 +00:00
|
|
|
});
|
|
|
|
}
|
|
|
|
|
2012-05-21 20:38:34 +00:00
|
|
|
}
|