# # MW-292 Reset timestamp after transaction replay # # We force transaction replay to happen and then we check that NOW() is not stuck in time. # As a bonus we also check that RAND() continues to return random values after replay # # --source include/galera_cluster.inc --source include/have_innodb.inc --source include/have_debug_sync.inc --source include/galera_have_debug_sync.inc --let $wsrep_local_replays_old = `SELECT VARIABLE_VALUE FROM INFORMATION_SCHEMA.GLOBAL_STATUS WHERE VARIABLE_NAME = 'wsrep_local_replays'` CREATE TABLE rand_table (f1 FLOAT); CREATE TABLE t1 (f1 INTEGER PRIMARY KEY, f2 CHAR(1)); INSERT INTO t1 VALUES (1, 'a'); INSERT INTO t1 VALUES (2, 'a'); --connection node_1 SET AUTOCOMMIT=ON; START TRANSACTION; UPDATE t1 SET f2 = 'b' WHERE f1 = 1; SELECT * FROM t1 WHERE f1 = 2 FOR UPDATE; # Block the applier on node #1 and issue a conflicting update on node #2 --connect node_1a, 127.0.0.1, root, , test, $NODE_MYPORT_1 SET SESSION wsrep_sync_wait=0; --let $galera_sync_point = apply_monitor_slave_enter_sync --source include/galera_set_sync_point.inc --connection node_2 UPDATE t1 SET f2 = 'c' WHERE f1 = 2; --connection node_1a --source include/galera_wait_sync_point.inc --source include/galera_clear_sync_point.inc # Block the commit, send the COMMIT and wait until it gets blocked --let $galera_sync_point = commit_monitor_master_enter_sync --source include/galera_set_sync_point.inc --connection node_1 --send COMMIT --connection node_1a --let $galera_sync_point = apply_monitor_slave_enter_sync commit_monitor_master_enter_sync --source include/galera_wait_sync_point.inc --source include/galera_clear_sync_point.inc # Let the conflicting UPDATE proceed and wait until it hits abort_trx_end. # The victim transaction still sits in commit_monitor_master_sync_point. --let $galera_sync_point = abort_trx_end --source include/galera_set_sync_point.inc --let $galera_sync_point = apply_monitor_slave_enter_sync --source include/galera_signal_sync_point.inc --let $galera_sync_point = abort_trx_end commit_monitor_master_enter_sync --source include/galera_wait_sync_point.inc # Let the transactions proceed --source include/galera_clear_sync_point.inc --let $galera_sync_point = abort_trx_end --source include/galera_signal_sync_point.inc --let $galera_sync_point = commit_monitor_master_enter_sync --source include/galera_signal_sync_point.inc # Commit succeeds --connection node_1 --reap # Confirm that NOW() is not stuck in time relative to SYSDATE(); --sleep 3 SELECT TIMEDIFF(SYSDATE(), NOW()) < 2; INSERT INTO rand_table VALUES (RAND()),(RAND()),(RAND()),(RAND()),(RAND()); INSERT INTO rand_table VALUES (RAND()),(RAND()),(RAND()),(RAND()),(RAND()); SELECT COUNT(DISTINCT f1) = 10 FROM rand_table; # wsrep_local_replays has increased by 1 --let $wsrep_local_replays_new = `SELECT VARIABLE_VALUE FROM INFORMATION_SCHEMA.GLOBAL_STATUS WHERE VARIABLE_NAME = 'wsrep_local_replays'` --disable_query_log --eval SELECT $wsrep_local_replays_new - $wsrep_local_replays_old = 1 AS wsrep_local_replays; --enable_query_log --connection node_2 DROP TABLE t1; DROP TABLE rand_table;