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MDEV-19746: Galera test failures because of wsrep_slave_threads identification Problem was that tests select INFORMATION_SCHEMA.PROCESSLIST processes from user system user and empty state. Thus, there is not clear state for slave threads. Changes: - Added new status variables that store current amount of applier threads (wsrep_applier_thread_count) and rollbacker threads (wsrep_rollbacker_thread_count). This will make clear how many slave threads of certain type there is. - Added THD state "wsrep applier idle" when applier slave thread is waiting for work. This makes finding slave/applier threads easier. - Added force-restart option for mtr to always restart servers between tests to avoid race on start of the test - Added wait_condition_with_debug to wait until the passed statement returns true, or the operation times out. If operation times out, the additional error statement will be executed Changes to be committed: new file: mysql-test/include/force_restart.inc new file: mysql-test/include/wait_condition_with_debug.inc modified: mysql-test/mysql-test-run.pl modified: mysql-test/suite/galera/disabled.def modified: mysql-test/suite/galera/r/MW-336.result modified: mysql-test/suite/galera/r/galera_kill_applier.result modified: mysql-test/suite/galera/r/galera_var_slave_threads.result new file: mysql-test/suite/galera/t/MW-336.cnf modified: mysql-test/suite/galera/t/MW-336.test modified: mysql-test/suite/galera/t/galera_kill_applier.test modified: mysql-test/suite/galera/t/galera_parallel_autoinc_largetrx.test modified: mysql-test/suite/galera/t/galera_parallel_autoinc_manytrx.test modified: mysql-test/suite/galera/t/galera_var_slave_threads.test modified: mysql-test/suite/wsrep/disabled.def modified: mysql-test/suite/wsrep/r/variables.result modified: mysql-test/suite/wsrep/t/variables.test modified: sql/mysqld.cc modified: sql/wsrep_mysqld.cc modified: sql/wsrep_mysqld.h modified: sql/wsrep_thd.cc modified: sql/wsrep_var.cc
7 years ago
MDEV-19746: Galera test failures because of wsrep_slave_threads identification Problem was that tests select INFORMATION_SCHEMA.PROCESSLIST processes from user system user and empty state. Thus, there is not clear state for slave threads. Changes: - Added new status variables that store current amount of applier threads (wsrep_applier_thread_count) and rollbacker threads (wsrep_rollbacker_thread_count). This will make clear how many slave threads of certain type there is. - Added THD state "wsrep applier idle" when applier slave thread is waiting for work. This makes finding slave/applier threads easier. - Added force-restart option for mtr to always restart servers between tests to avoid race on start of the test - Added wait_condition_with_debug to wait until the passed statement returns true, or the operation times out. If operation times out, the additional error statement will be executed Changes to be committed: new file: mysql-test/include/force_restart.inc new file: mysql-test/include/wait_condition_with_debug.inc modified: mysql-test/mysql-test-run.pl modified: mysql-test/suite/galera/disabled.def modified: mysql-test/suite/galera/r/MW-336.result modified: mysql-test/suite/galera/r/galera_kill_applier.result modified: mysql-test/suite/galera/r/galera_var_slave_threads.result new file: mysql-test/suite/galera/t/MW-336.cnf modified: mysql-test/suite/galera/t/MW-336.test modified: mysql-test/suite/galera/t/galera_kill_applier.test modified: mysql-test/suite/galera/t/galera_parallel_autoinc_largetrx.test modified: mysql-test/suite/galera/t/galera_parallel_autoinc_manytrx.test modified: mysql-test/suite/galera/t/galera_var_slave_threads.test modified: mysql-test/suite/wsrep/disabled.def modified: mysql-test/suite/wsrep/r/variables.result modified: mysql-test/suite/wsrep/t/variables.test modified: sql/mysqld.cc modified: sql/wsrep_mysqld.cc modified: sql/wsrep_mysqld.h modified: sql/wsrep_thd.cc modified: sql/wsrep_var.cc
7 years ago
MDEV-19746: Galera test failures because of wsrep_slave_threads identification Problem was that tests select INFORMATION_SCHEMA.PROCESSLIST processes from user system user and empty state. Thus, there is not clear state for slave threads. Changes: - Added new status variables that store current amount of applier threads (wsrep_applier_thread_count) and rollbacker threads (wsrep_rollbacker_thread_count). This will make clear how many slave threads of certain type there is. - Added THD state "wsrep applier idle" when applier slave thread is waiting for work. This makes finding slave/applier threads easier. - Added force-restart option for mtr to always restart servers between tests to avoid race on start of the test - Added wait_condition_with_debug to wait until the passed statement returns true, or the operation times out. If operation times out, the additional error statement will be executed Changes to be committed: new file: mysql-test/include/force_restart.inc new file: mysql-test/include/wait_condition_with_debug.inc modified: mysql-test/mysql-test-run.pl modified: mysql-test/suite/galera/disabled.def modified: mysql-test/suite/galera/r/MW-336.result modified: mysql-test/suite/galera/r/galera_kill_applier.result modified: mysql-test/suite/galera/r/galera_var_slave_threads.result new file: mysql-test/suite/galera/t/MW-336.cnf modified: mysql-test/suite/galera/t/MW-336.test modified: mysql-test/suite/galera/t/galera_kill_applier.test modified: mysql-test/suite/galera/t/galera_parallel_autoinc_largetrx.test modified: mysql-test/suite/galera/t/galera_parallel_autoinc_manytrx.test modified: mysql-test/suite/galera/t/galera_var_slave_threads.test modified: mysql-test/suite/wsrep/disabled.def modified: mysql-test/suite/wsrep/r/variables.result modified: mysql-test/suite/wsrep/t/variables.test modified: sql/mysqld.cc modified: sql/wsrep_mysqld.cc modified: sql/wsrep_mysqld.h modified: sql/wsrep_thd.cc modified: sql/wsrep_var.cc
7 years ago
MDEV-19746: Galera test failures because of wsrep_slave_threads identification Problem was that tests select INFORMATION_SCHEMA.PROCESSLIST processes from user system user and empty state. Thus, there is not clear state for slave threads. Changes: - Added new status variables that store current amount of applier threads (wsrep_applier_thread_count) and rollbacker threads (wsrep_rollbacker_thread_count). This will make clear how many slave threads of certain type there is. - Added THD state "wsrep applier idle" when applier slave thread is waiting for work. This makes finding slave/applier threads easier. - Added force-restart option for mtr to always restart servers between tests to avoid race on start of the test - Added wait_condition_with_debug to wait until the passed statement returns true, or the operation times out. If operation times out, the additional error statement will be executed Changes to be committed: new file: mysql-test/include/force_restart.inc new file: mysql-test/include/wait_condition_with_debug.inc modified: mysql-test/mysql-test-run.pl modified: mysql-test/suite/galera/disabled.def modified: mysql-test/suite/galera/r/MW-336.result modified: mysql-test/suite/galera/r/galera_kill_applier.result modified: mysql-test/suite/galera/r/galera_var_slave_threads.result new file: mysql-test/suite/galera/t/MW-336.cnf modified: mysql-test/suite/galera/t/MW-336.test modified: mysql-test/suite/galera/t/galera_kill_applier.test modified: mysql-test/suite/galera/t/galera_parallel_autoinc_largetrx.test modified: mysql-test/suite/galera/t/galera_parallel_autoinc_manytrx.test modified: mysql-test/suite/galera/t/galera_var_slave_threads.test modified: mysql-test/suite/wsrep/disabled.def modified: mysql-test/suite/wsrep/r/variables.result modified: mysql-test/suite/wsrep/t/variables.test modified: sql/mysqld.cc modified: sql/wsrep_mysqld.cc modified: sql/wsrep_mysqld.h modified: sql/wsrep_thd.cc modified: sql/wsrep_var.cc
7 years ago
MDEV-19746: Galera test failures because of wsrep_slave_threads identification Problem was that tests select INFORMATION_SCHEMA.PROCESSLIST processes from user system user and empty state. Thus, there is not clear state for slave threads. Changes: - Added new status variables that store current amount of applier threads (wsrep_applier_thread_count) and rollbacker threads (wsrep_rollbacker_thread_count). This will make clear how many slave threads of certain type there is. - Added THD state "wsrep applier idle" when applier slave thread is waiting for work. This makes finding slave/applier threads easier. - Added force-restart option for mtr to always restart servers between tests to avoid race on start of the test - Added wait_condition_with_debug to wait until the passed statement returns true, or the operation times out. If operation times out, the additional error statement will be executed Changes to be committed: new file: mysql-test/include/force_restart.inc new file: mysql-test/include/wait_condition_with_debug.inc modified: mysql-test/mysql-test-run.pl modified: mysql-test/suite/galera/disabled.def modified: mysql-test/suite/galera/r/MW-336.result modified: mysql-test/suite/galera/r/galera_kill_applier.result modified: mysql-test/suite/galera/r/galera_var_slave_threads.result new file: mysql-test/suite/galera/t/MW-336.cnf modified: mysql-test/suite/galera/t/MW-336.test modified: mysql-test/suite/galera/t/galera_kill_applier.test modified: mysql-test/suite/galera/t/galera_parallel_autoinc_largetrx.test modified: mysql-test/suite/galera/t/galera_parallel_autoinc_manytrx.test modified: mysql-test/suite/galera/t/galera_var_slave_threads.test modified: mysql-test/suite/wsrep/disabled.def modified: mysql-test/suite/wsrep/r/variables.result modified: mysql-test/suite/wsrep/t/variables.test modified: sql/mysqld.cc modified: sql/wsrep_mysqld.cc modified: sql/wsrep_mysqld.h modified: sql/wsrep_thd.cc modified: sql/wsrep_var.cc
7 years ago
  1. connection node_2;
  2. connection node_1;
  3. connection node_2;
  4. SELECT @@wsrep_slave_threads;
  5. @@wsrep_slave_threads
  6. 1
  7. SET GLOBAL wsrep_slave_threads=2;
  8. KILL ID;
  9. Got one of the listed errors
  10. KILL QUERY ID;
  11. Got one of the listed errors
  12. KILL ID;
  13. Got one of the listed errors
  14. KILL QUERY ID;
  15. Got one of the listed errors
  16. SET GLOBAL wsrep_slave_threads=DEFAULT;
  17. connection node_1;
  18. create table t1(a int not null primary key) engine=innodb;
  19. insert into t1 values (1);
  20. insert into t1 values (2);
  21. connection node_2;
  22. # Wait until one of the appliers has exited
  23. select count(*) from t1;
  24. count(*)
  25. 2
  26. SELECT @@wsrep_slave_threads;
  27. @@wsrep_slave_threads
  28. 1
  29. connection node_1;
  30. drop table t1;