Bug #27972 Test failure for rpl_ndb_circular_simplex

Submitted: 20 Apr 2007 8:08 Modified: 4 Aug 2007 4:12
Reporter: Mats Kindahl Email Updates:
Status: Closed Impact on me:
None 
Category:MySQL Server: Replication Severity:S2 (Serious)
Version:5.1 OS:Any
Assigned to: Mats Kindahl CPU Architecture:Any
Tags: pbfail

[20 Apr 2007 8:08] Mats Kindahl 
Description:
Test case rpl_ndb_circular_simplex fails occasionally. The failure is that the I/O thread stops just after being started because it is attempting to read from an impossible location. This occurs even though the slave has stopped previously at a known location, but that the master reports that the position does not exist when the slave starts again.

How to repeat:
Just run rpl_ndb_circular_simplex a few times on a loaded machine, and it should trigger.
[27 Jul 2007 13:07] 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/31698

ChangeSet@1.2540, 2007-07-27 15:06:46+02:00, mats@kindahl-laptop.dnsalias.net +3 -0
  BUG#27972 (Test failure for rpl_ndb_circular_simplex):
  Removing a RESET MASTER inside the test since that will change binlog
  positions in such a manner that the dual masters lose track of where
  they acually are.
[4 Aug 2007 1:18] Bugs System 
Pushed into 5.1.21-beta
[4 Aug 2007 4:12] Paul DuBois 
Test case change. No changelog entry needed.

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