Bug #12500 Server crash during "stop slave"

Submitted: 10 Aug 2005 15:01 Modified: 10 Apr 2006 8:07
Reporter: Joerg Bruehe Email Updates:
Status: Duplicate Impact on me:
None 
Category:MySQL Server: Replication Severity:S1 (Critical)
Version:5.0.* OS:MacOS (OS X (PPC + x86))
Assigned to: Assigned Account CPU Architecture:Any

[10 Aug 2005 15:01] Joerg Bruehe
Description:
Release build of 5.0.11, based on ChangeSet
  1.1950.1.1 05/08/06 03:10:35 kent@mysql.com +1 -0
  make_win_src_distribution.sh:
    Added missing backslashes

Test suite failure:

rpl_mystery22                  [ fail ]

Errors are (from PATH/mysqltest-time) :
At line 21: query 'stop slave' failed: 2013: Lost connection to MySQL server during query

Occurred: production-icc-glibc23-5.0-cluster.log   ps-protocol

How to repeat:
Test suite failure.
[29 Sep 2005 22:03] Brian Aker
Not enough information was provided for us to be able
to handle this bug. Please re-read the instructions at
http://bugs.mysql.com/how-to-report.php

If you can provide more information, feel free to add it
to this bug and change the status back to 'Open'.

Thank you for your interest in MySQL.
[7 Mar 2006 15:01] Joerg Bruehe
It re-occurs in several releases, on varying plytforms, with low frequency.

Last issue: Release build of 5.0.19, on "osx-imac-x86", build of "cluster".
It seems an autosave was not taken, at least none is logged.
(Build finished 2006-03-05 09:30:21)

=====
rpl_relayspace                 [ fail ]

Errors are (from PATH/mysqltest-time) :
mysqltest: At line NNN: query 'stop slave' failed: 2013: Lost connection to MySQL server during query
(the last lines may be the most important ones)

Ending Tests
=====
[5 Apr 2006 21:55] Elliot Murphy
Duplicate of bug#15671
[6 Apr 2006 6:36] Greg Lehey
It's not yet clear that this bug is a duplicate of BUG#15171.  It affects a different operating system, a different hardware platform, and a different test.  Even if it is a duplicate, it may prove simpler to investigate the problem on this platform, since we've had some strangenesses with Apple.
[7 Apr 2006 4:12] Greg Lehey
Investigated this problem on FreeBSD/x86 and Linux/amd64 (I don't have access to Linux/i686).  I was unable to reproduce the problem; it ran in a loop 100 times without a failure.  I have also not seen it fail under MacOS X/PPC, though I have not run it as long there.

My best bet is that this problem no longer occurs; if it does, it will show up in the test suite, so this report should be closed.
[7 Apr 2006 5:08] Greg Lehey
Just after sending the previous message, the MacOS X test failed with the same problems described in BUG#15671.  I don't see any reason to associate this failure with the present bug report.
[7 Apr 2006 8:30] Joerg Bruehe
Forgot to change the platform - observed first in 5.0.19, and repeated in 5.0.20,
it occurs on OS X only, on both PPC and x86 CPUs ("powermacg5" + "osx-imac-x86").
[10 Apr 2006 8:07] Joerg Bruehe
Greg Lehey has looked into this, and found it is just another symptom of the same bug that also causes problems on "start slave", bug#15671.
So on his proposal, I mark this 12500 as "duplicate" and refer all (future) references to bug#15671.

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