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e52315a4a2
This is a backport of the following fix from MySQL 5.7.23. Some code refactoring has been omitted, and the test case has been adapted to MariaDB. commit 7a689acaa65e9d602575f7aa53fe36a64a07460f Author: Krzysztof Kapuścik <krzysztof.kapuscik@oracle.com> Date: Tue Mar 13 12:34:03 2018 +0100 Bug#27082268 Invalid FTS sync synchronization The fix closes two issues: Bug #27082268 - INNODB: FAILING ASSERTION: SYM_NODE->TABLE != NULL DURING FTS SYNC Bug #27095935 - DEADLOCK BETWEEN FTS_DROP_INDEX AND FTS_OPTIMIZE_SYNC_TABLE Both issues were related to a FTS cache sync being done during operations that perfomed DDL actions on internal FTS tables (ALTER TABLE, TRUNCATE). In some cases the FTS tables and/or internal cache structures could get removed while still being used to perform FTS synchronization leading to crashes. In other the sync operations could not get finishes as it was waiting for dict lock which was taken by thread waiting for the background sync to be finished. The changes done includes: - Stopping background operations during ALTER TABLE and TRUNCATE. - Removal of unused code in FTS. - Cleanup of FTS sync related code to make it more readable and easier to maintain. RB#18262
117 lines
4.3 KiB
Text
117 lines
4.3 KiB
Text
CREATE TABLE t1 (
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id INT AUTO_INCREMENT NOT NULL PRIMARY KEY,
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value VARCHAR(1024)
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) ENGINE=InnoDB;
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CREATE FULLTEXT INDEX idx1 ON t1(value);
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Warnings:
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Warning 124 InnoDB rebuilding table to add column FTS_DOC_ID
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SET @save_debug = @@GLOBAL.debug_dbug;
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SET GLOBAL debug_dbug = '+d,fts_instrument_sync_request,fts_instrument_sync_before_syncing,ib_trunc_sleep_before_fts_cache_clear';
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INSERT INTO t1 (value) VALUES
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('By default or with the IN NATURAL LANGUAGE MODE modifier')
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;
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TRUNCATE TABLE t1;
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DROP TABLE t1;
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SET GLOBAL debug_dbug = @save_debug;
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CREATE TABLE t1 (
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id INT AUTO_INCREMENT NOT NULL PRIMARY KEY,
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value VARCHAR(1024)
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) ENGINE=InnoDB;
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CREATE FULLTEXT INDEX idx1 ON t1(value);
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Warnings:
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Warning 124 InnoDB rebuilding table to add column FTS_DOC_ID
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SET GLOBAL debug_dbug = '+d,fts_instrument_sync_request,fts_instrument_write_words_before_select_index,ib_trunc_sleep_before_fts_cache_clear';
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INSERT INTO t1 (value) VALUES
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('By default or with the IN NATURAL LANGUAGE MODE modifier'),
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('performs a natural language search for a string'),
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('collection is a set of one or more columns included'),
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('returns a relevance value; that is, a similarity measure'),
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('and the text in that row in the columns named in'),
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('By default, the search is performed in case-insensitive'),
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('sensitive full-text search, use a binary collation '),
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('example, a column that uses the latin1 character'),
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('collation of latin1_bin to make it case sensitive')
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;
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TRUNCATE TABLE t1;
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DROP TABLE t1;
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SET GLOBAL debug_dbug = @save_debug;
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CREATE TABLE t1 (
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value VARCHAR(1024)
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) ENGINE=InnoDB;
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CREATE FULLTEXT INDEX idx1 ON t1(value);
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Warnings:
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Warning 124 InnoDB rebuilding table to add column FTS_DOC_ID
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SET GLOBAL debug_dbug = '+d,fts_instrument_sync_request,fts_instrument_msg_sync_sleep';
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INSERT INTO t1 (value) VALUES
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('By default or with the IN NATURAL LANGUAGE MODE modifier'),
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('performs a natural language search for a string'),
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('collection is a set of one or more columns included'),
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('returns a relevance value; that is, a similarity measure'),
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('and the text in that row in the columns named in'),
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('By default, the search is performed in case-insensitive'),
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('sensitive full-text search, use a binary collation '),
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('example, a column that uses the latin1 character'),
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('collation of latin1_bin to make it case sensitive')
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;
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DROP INDEX idx1 ON t1;
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DROP TABLE t1;
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SET GLOBAL debug_dbug = @save_debug;
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CREATE TABLE t1 (
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value VARCHAR(1024)
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) ENGINE=InnoDB;
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CREATE FULLTEXT INDEX idx1 ON t1(value);
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Warnings:
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Warning 124 InnoDB rebuilding table to add column FTS_DOC_ID
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SET GLOBAL debug_dbug = '+d,fts_instrument_sync_request,fts_instrument_msg_sync_sleep';
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INSERT INTO t1 (value) VALUES
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('By default or with the IN NATURAL LANGUAGE MODE modifier'),
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('performs a natural language search for a string'),
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('collection is a set of one or more columns included'),
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('returns a relevance value; that is, a similarity measure'),
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('and the text in that row in the columns named in'),
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('By default, the search is performed in case-insensitive'),
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('sensitive full-text search, use a binary collation '),
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('example, a column that uses the latin1 character'),
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('collation of latin1_bin to make it case sensitive')
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;
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ALTER TABLE t1
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DROP INDEX idx1,
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ALGORITHM=INPLACE;
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DROP TABLE t1;
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SET GLOBAL debug_dbug = @save_debug;
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CREATE TABLE t1 (
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value VARCHAR(1024)
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) ENGINE=InnoDB;
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CREATE FULLTEXT INDEX idx1 ON t1(value);
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Warnings:
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Warning 124 InnoDB rebuilding table to add column FTS_DOC_ID
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SET GLOBAL debug_dbug = '+d,fts_instrument_sync_request,fts_instrument_msg_sync_sleep';
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INSERT INTO t1 (value) VALUES
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('example, a column that uses the latin1 character'),
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('collation of latin1_bin to make it case sensitive')
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;
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ALTER TABLE t1
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DROP INDEX idx1,
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ALGORITHM=COPY;
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DROP TABLE t1;
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SET GLOBAL debug_dbug = @save_debug;
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CREATE TABLE t1 (
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id1 INT NOT NULL AUTO_INCREMENT PRIMARY KEY,
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value VARCHAR(1024)
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) ENGINE=InnoDB;
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CREATE FULLTEXT INDEX idx1 ON t1(value);
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Warnings:
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Warning 124 InnoDB rebuilding table to add column FTS_DOC_ID
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SET GLOBAL debug_dbug = '+d,fts_instrument_sync_request,fts_instrument_msg_sync_sleep';
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INSERT INTO t1 (value) VALUES
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('example, a column that uses the latin1 character'),
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('collation of latin1_bin to make it case sensitive')
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;
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ALTER TABLE t1
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DROP COLUMN id1,
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ADD COLUMN id2 INT NOT NULL AUTO_INCREMENT PRIMARY KEY,
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DROP INDEX idx1,
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ADD FULLTEXT INDEX idx2(value),
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ALGORITHM=INPLACE;
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DROP TABLE t1;
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SET GLOBAL debug_dbug = @save_debug;
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