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# # This test checks that applier threads are immune to KILL QUERY and KILL STATEMENT # --source include/galera_cluster.inc --source include/have_innodb.inc --source include/force_restart.inc --connection node_2 SELECT @@wsrep_slave_threads; SET GLOBAL wsrep_slave_threads=2; --let $wait_condition = SELECT COUNT(*) = 2 FROM INFORMATION_SCHEMA.PROCESSLIST WHERE USER = 'system user' AND STATE = 'wsrep applier idle'; --let $wait_condition_on_error_output = SELECT COUNT(*), 2 as EXPECTED_VALUE FROM INFORMATION_SCHEMA.PROCESSLIST WHERE USER = 'system user' AND STATE = 'wsrep applier idle'; show processlist --source include/wait_condition_with_debug.inc --let $applier_thread = `SELECT ID FROM INFORMATION_SCHEMA.PROCESSLIST WHERE USER = 'system user' AND STATE = 'wsrep applier idle' LIMIT 1` --replace_result $applier_thread ID --error ER_KILL_DENIED_ERROR --eval KILL $applier_thread --replace_result $applier_thread ID --error ER_KILL_DENIED_ERROR --eval KILL QUERY $applier_thread --let $aborter_thread = `SELECT ID FROM INFORMATION_SCHEMA.PROCESSLIST WHERE USER = 'system user' AND STATE = 'wsrep aborter idle' LIMIT 1` --replace_result $aborter_thread ID --error ER_KILL_DENIED_ERROR --eval KILL $aborter_thread --replace_result $aborter_thread ID --error ER_KILL_DENIED_ERROR --eval KILL QUERY $aborter_thread SET GLOBAL wsrep_slave_threads=DEFAULT; --connection node_1 create table t1(a int not null primary key) engine=innodb; insert into t1 values (1); insert into t1 values (2); --connection node_2 --echo # Wait until one of the appliers has exited --let $wait_condition = SELECT VARIABLE_VALUE = 1 FROM INFORMATION_SCHEMA.GLOBAL_STATUS WHERE VARIABLE_NAME = 'wsrep_applier_thread_count'; --let $wait_condition_on_error_output = SELECT COUNT(*), 1 as EXPECTED_VALUE FROM INFORMATION_SCHEMA.PROCESSLIST WHERE USER = 'system user' AND STATE = 'wsrep applier idle'; show processlist --source include/wait_condition_with_debug.inc select count(*) from t1; SELECT @@wsrep_slave_threads; --connection node_1 drop table t1;