Bug #39569 | events_bugs fails sporadically on pushbuild (should have failed with errno 1539) | ||
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Submitted: | 21 Sep 2008 15:17 | Modified: | 10 Nov 2008 17:43 |
Reporter: | Sven Sandberg | Email Updates: | |
Status: | Closed | Impact on me: | |
Category: | Tests: Replication | Severity: | S7 (Test Cases) |
Version: | 5.1, 6.0, all trees | OS: | Any |
Assigned to: | Matthias Leich | CPU Architecture: | Any |
Tags: | disabled, events_bugs, pushbuild, sporadic, test failure |
[21 Sep 2008 15:17]
Sven Sandberg
[16 Oct 2008 19:20]
Matthias Leich
The problem: ============ --echo # Waiting for the event scheduler to execute and drop event e1... let $wait_timeout = 2; <======= This wait_timeout is a bit small. My experience with testing boxes and high parallel load is, that there might be a delay between execution of one statement and the next one of up to ~ 2 seconds. This is especially valid if we have a switch to another thread between the statement executions. let $wait_condition = SELECT COUNT(*) = 0 FROM INFORMATION_SCHEMA.EVENTS WHERE event_schema = 'events_test' AND event_name = 'e1'; --source include/wait_condition.inc <======= The protocol of the problematic test run shows here "Timeout in wait_condition.inc ...." = The event e1 did not disappear. --echo --echo # Waiting for the event scheduler to execute and update event e2... let $wait_condition = SELECT last_executed IS NOT NULL FROM INFORMATION_SCHEMA.EVENTS WHERE event_schema = 'events_test' AND event_name = 'e2'; --source include/wait_condition.inc --echo SET GLOBAL EVENT_SCHEDULER = OFF; <=== Now the EVENT_SCHEDULER is OFF which means even if there are actions to be done by him like removal of event "e1" he cannot do this. --echo SELECT event_name, last_executed IS NULL, definer FROM INFORMATION_SCHEMA.EVENTS WHERE event_schema = 'events_test'; <== The protocol of the problematic test run shows here event_name last_executed IS NULL definer e1 1 mysqltest_u1@localhost e2 0 mysqltest_u1@localhost whereas it is expected that the event e1 does no more exists. --echo --error ER_EVENT_DOES_NOT_EXIST DROP EVENT e1; <== We get here DROP EVENT e1' succeeded - should have failed with errno 1539... because the EVENT SCHEDULER had with no Conclusion: $wait_timeout has to be increased
[16 Oct 2008 19:46]
Bugs System
A patch for this bug has been committed. After review, it may be pushed to the relevant source trees for release in the next version. You can access the patch from: http://lists.mysql.com/commits/56416 2672 Matthias Leich 2008-10-16 - Fix for Bug #39848, #39863, #39978, #39569 Bug#39848 events_bugs fails sporadically on pushbuild (missing rows in table event_log) Details: Reimplement the subtest for BUG 28924 - check if the number of rows within the table event_log changes but don't print rows because the number varies depending on load on testing box - shift DROP USER befor DROP EVENT = Subtest fits again to old bug - remove no more needed comments + variables Bug#39863 events_bugs fails sporadically on pushbuild (extra processes in I_S.PROCESSLIST) Details: Abort with appropriate message to the protocol if release_lock() does not has the intended effect. This cannot prevent problems caused by the probably buggy release_lock() but it reveals if we had a problem in this area. Bug#39978 main.events_bugs does not clean up Detail: Restore global.event_scheduler = ON at end of test Bug#39569 events_bugs fails sporadically on pushbuild (should have failed with errno 1539) Detail: Set $wait_timeout to 4 instead of 2 - Minor improvements of formatting Details: - Add comments - Remove tabs and trailing blanks - Add line breaks for better readability
[17 Oct 2008 12:55]
Bugs System
A patch for this bug has been committed. After review, it may be pushed to the relevant source trees for release in the next version. You can access the patch from: http://lists.mysql.com/commits/56471 2673 Matthias Leich 2008-10-17 - Fix for Bug #39848, #39863, #39978, #39569 Bug#39848 events_bugs fails sporadically on pushbuild (missing rows in table event_log) Details: Reimplement the subtest for BUG 28924 - check if the number of rows within the table event_log changes but don't print rows because the number varies depending on load on testing box - shift DROP USER befor DROP EVENT = Subtest fits again to old bug - remove no more needed comments + variables Bug#39863 events_bugs fails sporadically on pushbuild (extra processes in I_S.PROCESSLIST) Details: Abort with appropriate message to the protocol if release_lock() does not has the intended effect. This cannot prevent problems caused by the probably buggy release_lock() but it reveals if we had a problem in this area. Bug#39978 main.events_bugs does not clean up Detail: Restore global.event_scheduler = ON at end of test Bug#39569 events_bugs fails sporadically on pushbuild (should have failed with errno 1539) Detail: Set $wait_timeout to 4 instead of 2 - Fix two instabilities (result sets pulled from processlist in subtest for bug 16407) which were found during tests with high parallel I/O load - Minor improvements of formatting Details: - Add comments - Remove tabs and trailing blanks - Add line breaks for better readability
[27 Oct 2008 21:23]
Patrick Crews
Ok to push.
[4 Nov 2008 11:27]
Bugs System
A patch for this bug has been committed. After review, it may be pushed to the relevant source trees for release in the next version. You can access the patch from: http://lists.mysql.com/commits/57771 2692 Matthias Leich 2008-11-04 - Fix for Bug #39848, #39863, #39978, #39569 Bug#39848 events_bugs fails sporadically on pushbuild (missing rows in table event_log) Details: Reimplement the subtest for BUG 28924 - check if the number of rows within the table event_log changes but don't print rows because the number varies depending on load on testing box - shift DROP USER befor DROP EVENT = Subtest fits again to old bug - remove no more needed comments + variables Bug#39863 events_bugs fails sporadically on pushbuild (extra processes in I_S.PROCESSLIST) Details: Abort with appropriate message to the protocol if release_lock() does not has the intended effect. This cannot prevent problems caused by the probably buggy release_lock() but it reveals if we had a problem in this area. Bug#39978 main.events_bugs does not clean up Detail: Restore global.event_scheduler = ON at end of test Bug#39569 events_bugs fails sporadically on pushbuild (should have failed with errno 1539) Detail: Set $wait_timeout to 4 instead of 2 - Fix two instabilities (result sets pulled from processlist in subtest for bug 16407) which were found during tests with high parallel I/O load - Minor improvements of formatting Details: - Add comments - Remove tabs and trailing blanks - Add line breaks for better readability
[5 Nov 2008 12:24]
Matthias Leich
Pushed to 5.1-bugteam 6.0-bugteam
[10 Nov 2008 10:51]
Bugs System
Pushed into 6.0.8-alpha (revid:matthias.leich@sun.com-20081104112721-bqfae4rvb8tatg2e) (version source revid:matthias.leich@sun.com-20081104183908-ux6g8n3yj43bd43l) (pib:5)
[10 Nov 2008 11:36]
Bugs System
Pushed into 5.1.30 (revid:matthias.leich@sun.com-20081104112721-bqfae4rvb8tatg2e) (version source revid:matthias.leich@sun.com-20081104180256-w9rqsaozf7wby5ab) (pib:5)
[10 Nov 2008 17:43]
Paul DuBois
Test case changes. No changelog entry needed.
[19 Jan 2009 11:33]
Bugs System
Pushed into 5.1.31-ndb-6.2.17 (revid:tomas.ulin@sun.com-20090119095303-uwwvxiibtr38djii) (version source revid:tomas.ulin@sun.com-20090108105244-8opp3i85jw0uj5ib) (merge vers: 5.1.31-ndb-6.2.17) (pib:6)
[19 Jan 2009 13:09]
Bugs System
Pushed into 5.1.31-ndb-6.3.21 (revid:tomas.ulin@sun.com-20090119104956-guxz190n2kh31fxl) (version source revid:tomas.ulin@sun.com-20090119104956-guxz190n2kh31fxl) (merge vers: 5.1.31-ndb-6.3.21) (pib:6)
[19 Jan 2009 16:15]
Bugs System
Pushed into 5.1.31-ndb-6.4.1 (revid:tomas.ulin@sun.com-20090119144033-4aylstx5czzz88i5) (version source revid:tomas.ulin@sun.com-20090119144033-4aylstx5czzz88i5) (merge vers: 5.1.31-ndb-6.4.1) (pib:6)