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In STATEMENT based replication, a statement that failed on the master but that updated non-transactional tables is written to binary log with the error code appended to it. On the slave, the statement is executed and the same error is expected. However, when an "expected error" did not happen on the slave and was either ignored or was related to a concurrency issue on the master, the slave did not rollback the effects of the statement and as such inconsistencies might happen. To fix the problem, we automatically rollback a statement that should have failed on a slave but succeded and whose expected failure is either ignored or stems from a concurrency issue on the master.
149 lines
4.2 KiB
Text
149 lines
4.2 KiB
Text
###############################################################################
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#BUG#44581 Slave stops when transaction with non-transactional table gets
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#lock wait timeout
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#
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# In STMT and MIXED modes, a statement that changes both non-transactional and
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# transactional tables must be written to the binary log whenever there are
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# changes to non-transactional tables. This means that the statement gets into
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# the # binary log even when the changes to the transactional tables fail. In
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# particular, in the presence of a failure such statement is annotated with the
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# error number and wrapped in a begin/rollback. On the slave, while applying
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# the statement, it is expected the same failure and the rollback prevents the
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# transactional changes to be persisted.
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# This test aims to verify if a statement that updates both transactional and
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# non-transacitonal tables and fails due to concurrency problems is correctly
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# processed by the slave in the sense that the statements get into the binary
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# log, the error is ignored and only the non-transactional tables are changed.
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###############################################################################
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--source include/master-slave.inc
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--source include/have_innodb.inc
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--source include/have_binlog_format_statement.inc
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--echo ########################################################################
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--echo # Environment
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--echo ########################################################################
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connection master;
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CREATE TABLE t (i INT, PRIMARY KEY(i), f CHAR(8)) engine = Innodb;
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CREATE TABLE n (d DATETIME, f CHAR(32)) engine = MyIsam;
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DELIMITER |;
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CREATE TRIGGER tr AFTER UPDATE ON t FOR EACH ROW
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BEGIN
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INSERT INTO n VALUES ( now(), concat( 'updated t: ', old.f, ' -> ', new.f ) );
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END |
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DELIMITER ;|
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INSERT INTO t VALUES (4,'black'), (2,'red'), (3,'yelow'), (1,'cyan');
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connect (conn1, 127.0.0.1,root,,);
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connect (conn2, 127.0.0.1,root,,);
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--echo ########################################################################
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--echo # Testing ER_LOCK_WAIT_TIMEOUT
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--echo ########################################################################
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let $type=2;
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while ($type)
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{
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let $binlog_start= query_get_value("SHOW MASTER STATUS", Position, 1);
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connection conn1;
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if (`select $type = 2`)
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{
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SET AUTOCOMMIT = 1;
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BEGIN;
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}
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if (`select $type = 1`)
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{
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SET AUTOCOMMIT = 0;
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}
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eval UPDATE t SET f = 'yellow $type' WHERE i = 3;
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connection conn2;
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if (`select $type = 2`)
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{
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SET AUTOCOMMIT = 1;
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BEGIN;
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}
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if (`select $type = 1`)
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{
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SET AUTOCOMMIT = 0;
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}
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--error ER_LOCK_WAIT_TIMEOUT
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eval UPDATE t SET f = 'magenta $type' WHERE f = 'red';
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eval INSERT INTO t VALUES (5 + ($type * 10),"brown");
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INSERT INTO n VALUES (now(),"brown");
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connection conn1;
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COMMIT;
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connection conn2;
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ROLLBACK;
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--source include/show_binlog_events.inc
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let $binlog_start= query_get_value("SHOW MASTER STATUS", Position, 1);
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connection conn1;
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if (`select $type = 2`)
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{
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SET AUTOCOMMIT = 1;
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BEGIN;
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}
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if (`select $type = 1`)
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{
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SET AUTOCOMMIT = 0;
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}
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eval UPDATE t SET f = 'gray $type' WHERE i = 3;
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connection conn2;
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if (`select $type = 2`)
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{
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SET AUTOCOMMIT = 1;
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BEGIN;
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}
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if (`select $type = 1`)
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{
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SET AUTOCOMMIT = 0;
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}
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--error ER_LOCK_WAIT_TIMEOUT
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eval UPDATE t SET f = 'dark blue $type' WHERE f = 'red';
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eval INSERT INTO t VALUES (6 + ($type * 10),"brown");
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INSERT INTO n VALUES (now(),"brown");
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connection conn1;
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COMMIT;
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connection conn2;
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COMMIT;
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--source include/show_binlog_events.inc
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dec $type;
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}
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connection master;
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sync_slave_with_master;
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connection master;
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let $diff_statement= SELECT * FROM t order by i;
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source include/diff_master_slave.inc;
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connection master;
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let $diff_statement= SELECT * FROM n order by d, f;
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source include/diff_master_slave.inc;
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--echo ########################################################################
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--echo # Cleanup
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--echo ########################################################################
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connection master;
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DROP TRIGGER tr;
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DROP TABLE t;
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DROP TABLE n;
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sync_slave_with_master;
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connection master;
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disconnect conn1;
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disconnect conn2;
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