# Scenario: # SigCon connects to slave and creates some lock on a record, # and tries to commit, but pauses just before a check for is_aborted. # Master changes the same record # Applier thread (which is boosted to High Priority) tries to modify # the same row Master has modified, but observes the lock created by # SigCon, and decides to abort SigCon. # SigCon becomes unpaused, notices it should abort. # There was a bug in that SigCon client observed success, despite # the transaction being aborted. # no need to rerun this test three times --source include/have_binlog_format_mixed.inc --source include/have_debug.inc --source include/have_debug_sync.inc --source include/master-slave.inc --source include/rpl_connection_slave.inc SET GLOBAL DEBUG="+d,dbug_set_high_prio_sql_thread"; # now applier thread starts with high prio # since we are now setting the internal flag --source include/stop_slave_sql.inc --source include/start_slave_sql.inc --source include/rpl_connection_master.inc ####### MASTER ####### CREATE TABLE t1 (c1 INT NOT NULL PRIMARY KEY) ENGINE=InnoDB; INSERT INTO t1 VALUES (0); ####### SIGCON ####### --let $rpl_connection_name= sigcon --let $rpl_server_number= 2 --source include/rpl_connect.inc --echo [connection sigcon] --let $sync_slave_connection= sigcon --source include/sync_slave_sql_with_master.inc BEGIN; SELECT c1 FROM t1 WHERE c1=0 FOR UPDATE; SET DEBUG_SYNC='trx_commit_for_mysql_checks_for_aborted WAIT_FOR waiting1'; --send COMMIT ####### SLAVE ####### --source include/rpl_connection_slave.inc # Wait until sigcon reaches the ha_innobase_update_row_done debug sync point. --let $wait_condition=SELECT COUNT(*)=1 FROM INFORMATION_SCHEMA.PROCESSLIST WHERE State = 'debug sync point: trx_commit_for_mysql_checks_for_aborted' --source include/wait_condition.inc ####### MASTER ####### --source include/rpl_connection_master.inc UPDATE t1 SET c1=1 WHERE c1=0; ####### SLAVE ####### --source include/rpl_connection_slave.inc --sleep 3 # Now signal the waiting thread on sigcon to resume # and it should end up in an error stating that it # was aborted SET DEBUG_SYNC='now SIGNAL waiting1'; # Wait for c1 in t1 to be 1 --let $wait_condition=SELECT COUNT(*)=1 FROM t1 WHERE c1=1 --source include/wait_condition.inc ####### SIGCON ####### --echo [connection sigcon] --let $rpl_connection_name= sigcon --source include/rpl_connection.inc --reap --disconnect sigcon ####### SLAVE ####### --connection master --let $sync_slave_connection= slave --source include/sync_slave_sql_with_master.inc --let $assert_text= 'There is a 1 in t1' --let $assert_cond= [SELECT COUNT(*) AS count FROM t1 WHERE t1.c1 = 1, count, 1] = 1 --source include/assert.inc --let $assert_text= 'There is no 0 in t1' --let $assert_cond= [SELECT COUNT(*) AS count FROM t1 WHERE t1.c1 = 0, count, 1] = 0 --source include/assert.inc --let $assert_text= 'There is no 99 in t1' --let $assert_cond= [SELECT COUNT(*) AS count FROM t1 WHERE t1.c1 = 99, count, 1] = 0 --source include/assert.inc # Clean up. --connection master DROP TABLE t1; --source include/sync_slave_sql_with_master.inc # resetting the applier thread --source include/stop_slave_sql.inc SET GLOBAL DEBUG="-d,dbug_set_high_prio_sql_thread"; --source include/start_slave_sql.inc --source include/rpl_end.inc