lmb at suse
Sep 17, 2009, 1:55 AM
Post #1 of 1
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Re: hb tries to release resources before all processes are stopped
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On 2009-09-17T01:26:33, Holger Latz <holger.latz[at]googlemail.com> wrote:
> resources from right-to-left of the haresources. I suppose the problem
> is that mysql's mysqld_multi script just _initiates_ the stop-process
> and does not wait, until all mysql-processes are really finished.
That's a bug in the mysqld_multi script. You can fix this by fixing the
script.
A
while ! check_if_stopped ; do sleep 1 ; done
should suffice.
What is a bit surprising is that the Filesystem RA doesn't kill the
processes; it's supposed to at least try and in the normal course of
life, should succeed to. There's some cases where it can't (ie, open
references in-kernel which lsof/fuser can't find), but I wouldn't think
mysqld_multi triggers that ...
FWIW, if you were running a crm-style cluster, the failed stop would
escalate to a node fence and the cluster as a whole still be able to
proceed.
Regards,
Lars
--
Architect Storage/HA, OPS Engineering, Novell, Inc.
SUSE LINUX Products GmbH, GF: Markus Rex, HRB 16746 (AG Nürnberg)
"Experience is the name everyone gives to their mistakes." -- Oscar Wilde
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