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71 lines
2.4 KiB
Text
71 lines
2.4 KiB
Text
#
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# This test tests the operation of transaction replay. If a potentially conflicting remote transaction arrives at
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# just the right time during the commit of a local transaction, the local transaction will be aborted and replayed.
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#
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--source include/galera_cluster.inc
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--source include/have_innodb.inc
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--source include/have_debug_sync.inc
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--source suite/galera/include/galera_have_debug_sync.inc
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--let $wsrep_local_replays_old = `SELECT VARIABLE_VALUE FROM INFORMATION_SCHEMA.GLOBAL_STATUS WHERE VARIABLE_NAME = 'wsrep_local_replays'`
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CREATE TABLE t1 (f1 INTEGER PRIMARY KEY, f2 CHAR(1));
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INSERT INTO t1 VALUES (1, 'a');
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INSERT INTO t1 VALUES (2, 'a');
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--connection node_1
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SET AUTOCOMMIT=ON;
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START TRANSACTION;
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UPDATE t1 SET f2 = 'b' WHERE f1 = 1;
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SELECT * FROM t1 WHERE f1 = 2 FOR UPDATE;
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# Block the commit
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--connect node_1a, 127.0.0.1, root, , test, $NODE_MYPORT_1
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SET GLOBAL wsrep_provider_options = 'dbug=d,commit_monitor_enter_sync';
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--connection node_1
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--send COMMIT;
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# Wait until commit is blocked
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--connection node_1a
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SET SESSION wsrep_sync_wait = 0;
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--let $wait_condition = SELECT COUNT(*) = 1 FROM INFORMATION_SCHEMA.GLOBAL_STATUS WHERE VARIABLE_NAME = 'wsrep_debug_sync_waiters' AND VARIABLE_VALUE = 'commit_monitor_enter_sync'
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--source include/wait_condition.inc
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# Issue a conflicting update on node #2
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--connection node_2
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UPDATE t1 SET f2 = 'c' WHERE f1 = 2;
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# Wait for both transactions to be blocked
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--connection node_1a
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--let $wait_condition = SELECT COUNT(*) = 1 FROM INFORMATION_SCHEMA.PROCESSLIST WHERE STATE = 'System lock';
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--source include/wait_condition.inc
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--let $wait_condition = SELECT COUNT(*) = 1 FROM INFORMATION_SCHEMA.PROCESSLIST WHERE STATE = 'init' AND INFO = 'COMMIT';
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--source include/wait_condition.inc
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# Unblock the commit
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--connection node_1a
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SET GLOBAL wsrep_provider_options = 'dbug=';
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SET GLOBAL wsrep_provider_options = 'signal=commit_monitor_enter_sync';
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# Commit succeeds
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--connection node_1
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--reap
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SELECT COUNT(*) = 1 FROM t1 WHERE f2 = 'b';
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SELECT COUNT(*) = 1 FROM t1 WHERE f2 = 'c';
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# wsrep_local_replays has increased by 1
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--let $wsrep_local_replays_new = `SELECT VARIABLE_VALUE FROM INFORMATION_SCHEMA.GLOBAL_STATUS WHERE VARIABLE_NAME = 'wsrep_local_replays'`
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--disable_query_log
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--eval SELECT $wsrep_local_replays_new - $wsrep_local_replays_old = 1 AS wsrep_local_replays;
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--enable_query_log
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--connection node_2
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SELECT COUNT(*) = 1 FROM t1 WHERE f2 = 'b';
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SELECT COUNT(*) = 1 FROM t1 WHERE f2 = 'c';
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DROP TABLE t1;
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