Details
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Bug
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Status: Closed (View Workflow)
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Critical
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Resolution: Fixed
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10.5, 10.2(EOL), 10.3(EOL), 10.4(EOL)
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None
Description
# Configure max_binlog_cache_size=4096
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# Generate a multi statement transaction such that the binlog cache size
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# exceeds the configured "max_binlog_cache_size=4096" limit. Observe that
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# an INCIDENT event is written to the binary log even though the statement
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# was safely rolled back. This INCIDENT event will stop the slave applier thread.
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--source include/have_binlog_format_row.inc
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--source include/have_innodb.inc
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--source include/master-slave.inc
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SET @old_max_binlog_cache_size= @@global.max_binlog_cache_size;
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SET @old_binlog_cache_size= @@global.binlog_cache_size;
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SET GLOBAL binlog_cache_size=4096;
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SET GLOBAL max_binlog_cache_size=4096;
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CREATE TABLE t( f INT) ENGINE=INNODB;
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BEGIN;
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let $counter=72;
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--disable_query_log
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while ($counter) {
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--error 0,1534
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INSERT INTO t VALUES (1);
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dec $counter;
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}
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--enable_query_log
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COMMIT;
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SELECT COUNT(*) from t;
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SHOW BINLOG EVENTS;
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DROP TABLE t;
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eval SET GLOBAL max_binlog_cache_size= @old_max_binlog_cache_size;
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eval SET GLOBAL binlog_cache_size= @old_binlog_cache_size;
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--source include/rpl_end.inc
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Part of "SHOW BINLOG EVENTS" output:
master-bin.000001 9288 Annotate_rows 1 9335 INSERT INTO t VALUES (1)
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master-bin.000001 9335 Table_map 1 9379 table_id: 31 (test.t)
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master-bin.000001 9379 Write_rows_v1 1 9417 table_id: 31 flags: STMT_END_F
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master-bin.000001 9417 Annotate_rows 1 9464 INSERT INTO t VALUES (1)
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master-bin.000001 9464 Table_map 1 9508 table_id: 31 (test.t)
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master-bin.000001 9508 Write_rows_v1 1 9546 table_id: 31 flags: STMT_END_F
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master-bin.000001 9546 Xid 1 9577 COMMIT /* xid=140 */
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master-bin.000001 9577 Incident 1 9634 #1 (LOST_EVENTS)
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master-bin.000001 9634 Gtid 1 9676 GTID 0-1-3
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master-bin.000001 9676 Query 1 9783 use `test`; DROP TABLE `t` /* generated by server */
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Slave reports following error:
Last_SQL_Errno 1590
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Last_SQL_Error The incident LOST_EVENTS occurred on the master. Message: error writing to the binary log
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Report INCIDENT event only in a case where safe rollback is not possible.
Attachments
Issue Links
- relates to
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MDEV-21087 ER_SLAVE_INCIDENT arrives at slave without failure specifics
- Closed