[MDEV-7103] Sporadic test falure in rpl.rpl_parallel_show_binlog_events_purge_logs Created: 2014-11-13  Updated: 2014-11-17  Resolved: 2014-11-13

Status: Closed
Project: MariaDB Server
Component/s: Tests
Affects Version/s: 5.5.40, 10.0.14
Fix Version/s: 5.5.41, 10.0.15

Type: Bug Priority: Major
Reporter: Kristian Nielsen Assignee: Kristian Nielsen
Resolution: Fixed Votes: 0
Labels: None

Issue Links:
Blocks
blocks MDEV-7069 Fix buildbot failures in main server ... Stalled

 Description   

The test case rpl.rpl_parallel_show_binlog_events_purge_logs fails
sporadically.

The problem is this in the test case:

SET DEBUG_SYNC= 'now SIGNAL end';
 
SET DEBUG_SYNC= 'RESET';

This pattern is always wrong. The RESET will race with whoever is waiting for
the previous SIGNAL. If the waiter loses the race, it will never wake up, as
the signal is cleared before the waiter sees it.

 Comments   
Comment by Kristian Nielsen [ 2014-11-13 ]

Pushed to 5.5.40

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