mariadb/mysql-test/r/events_stress.result

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fix for bug#16406 (Events: DROP DATABASE doesn't automatically drop events) WL#1034 - This changeset also changes the executor so its quite more stable now. Stressing test case added that executes ~800 events per second and dropping hundreds of events at once using DROP DATABASE. (with fixes after review of JimW) (with fixes after review of Serg) mysql-test/r/events.result: update results after TRIGGER_ACL was added mysql-test/t/events.test: -redundant line sql/event.cc: Implemented evex_db_drop_events() which drops all events from a specific database. Needed for SQLCOM_DROP_DATABASE sql/event.h: - protect the event better (see the changes to event_executor.cc and event.cc). An event object could be used in a spawned thread before it's executed but till now the object is marked as being executed when the anonymous sp_head is executed. However, there are timeframes before and after that during which the event is not marked as executed and other thread may delete the object -> so we end with a nirvana pointer. sql/event_executor.cc: - extract some of the code executed in the main thread to a function. Too long functions are bad for the overview. - prepend all information/error messages to the console with "SCHEDULER:" for better overview, and easied searching in the log tables. sql/event_priv.h: - change the name, of evex_db_find_event_by_name() and don't used C++ features like function overloading - define consts for result returned from event_timed::spawn_now() sql/event_timed.cc: - add few methods related to event execution. now the event spawns the worker thread and passes itself as parameter. This way it locks itself for exectution first and then spawning -> no race condition. When the worker thread has finished working with the reference it calls back event_timed::spawn_thread_finish() to unlock itself. sql/sql_db.cc: - call evex_drop_db_events() on DROP DATABASE
2006-02-16 00:43:11 +01:00
CREATE DATABASE IF NOT EXISTS events_test;
CREATE DATABASE events_test2;
USE events_test2;
CREATE EVENT ev_drop1 ON SCHEDULE EVERY 10 MINUTE DISABLE DO SELECT 1;
CREATE EVENT ev_drop2 ON SCHEDULE EVERY 10 MINUTE DISABLE DO SELECT 1;
CREATE EVENT ev_drop3 ON SCHEDULE EVERY 10 MINUTE DISABLE DO SELECT 1;
USE events_test;
SELECT COUNT(*) FROM INFORMATION_SCHEMA.EVENTS WHERE EVENT_SCHEMA='events_test2';
COUNT(*)
3
DROP DATABASE events_test2;
SELECT COUNT(*) FROM INFORMATION_SCHEMA.EVENTS WHERE EVENT_SCHEMA='events_test2';
COUNT(*)
0
"Now testing stability - dropping db -> events while they are running"
CREATE DATABASE events_test2;
USE events_test2;
SELECT COUNT(*) FROM INFORMATION_SCHEMA.EVENTS WHERE EVENT_SCHEMA='events_test2';
COUNT(*)
1000
SET GLOBAL event_scheduler=1;
DROP DATABASE events_test2;
SET GLOBAL event_scheduler=0;
SELECT COUNT(*) FROM INFORMATION_SCHEMA.EVENTS WHERE EVENT_SCHEMA='events_test2';
COUNT(*)
0
CREATE DATABASE events_test3;
USE events_test3;
SELECT COUNT(*) FROM INFORMATION_SCHEMA.EVENTS WHERE EVENT_SCHEMA='events_test3';
COUNT(*)
950
CREATE DATABASE events_test4;
USE events_test4;
CREATE DATABASE events_test2;
USE events_test2;
SELECT COUNT(*) FROM INFORMATION_SCHEMA.EVENTS WHERE EVENT_SCHEMA='events_test2';
COUNT(*)
1050
DROP DATABASE events_test2;
SET GLOBAL event_scheduler=0;
DROP DATABASE events_test3;
SET GLOBAL event_scheduler=1;
DROP DATABASE events_test4;
SET GLOBAL event_scheduler=1;
USE events_test;
DROP DATABASE events_test;