[Pacemaker] Help with OCFS2 / DLM Stability

[Darren.Mansell at opengi.co.uk]

On Wed, 2010-03-10 at 13:28 +0100, Dejan Muhamedagic wrote:
> Hi,
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> On Tue, Mar 09, 2010 at 11:37:02AM -0000, Darren.Mansell at opengi.co.uk wro=
te:
> > Hi everyone.
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> > Further to some discussions a couple of weeks ago with regard to OCFS2
> > on SLES 11 HAE I'm looking to finally nail this problem.
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> > We have a 3 node cluster that has a STONITH shootout every week. This
> > morning one node got stuck in a state where it couldn't be fenced due
> > the RSA not being responsive.
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> > I'm not sure if the problem is due to:
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> > *         Network interruption causing Totem failures.
> > *         Java (Tomcat) processes falling over.
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> I suppose that those are activequote and activequoteadmin. You
> should increase the timeouts, 10 seconds is too short in general,
> and for java/tomcat probably even more so.
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> > *         DLM falling over.
> > *         Any of the above in any combination.
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> > I've attached a hb_report. Could you see if you can see anything?
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> Any good reason to ignore quorum? For a three node cluster you
> should remove the no-quorum-policy property or, perhaps because
> of ocfs2, set it to freeze.
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> Pacemaker is 1.0.3, perhaps it's time to upgrade too. There is a
> SLE11 HAE update available.
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> From the logs:
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> Mar  9 06:28:43 OGG-ACTIVEQUOTE-02 pengine: [5540]: WARN: unpack_rsc_op: =
Processing failed op activequote:1_monitor_10000 on OGG-ACTIVEQUOTE-03: unk=
nown exec error
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> Interestingly, there is no lrmd log for this on 03.
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> Then there are several operation timeouts, perhaps due to ocfs2
> hanging, two activequote and activequoteadmin stop operations
> could not be killed even with -9, so they were probably waiting
> for the disk.
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> Mar  9 06:29:40 OGG-ACTIVEQUOTE-02 openais[5439]: [crm  ] info: pcmk_peer=
_update: lost: OGG-ACTIVEQUOTE-03 504997642
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> Do you know why the node vanished? You should try to keep your
> networking healthy.
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> Thanks,
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> Dejan
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> > Thanks
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> > Darren Mansell
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> > _______________________________________________
> > Pacemaker mailing list
> > Pacemaker at oss.clusterlabs.org
> > http://oss.clusterlabs.org/mailman/listinfo/pacemaker
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