[Pacemaker] pengine self-maintenance

[Dejan Muhamedagic]

Hi,

On Mon, May 17, 2010 at 06:56:00AM -0400, Vadym Chepkov wrote:
> 
> On May 17, 2010, at 2:52 AM, Andrew Beekhof wrote:
> 
> > On Sun, May 16, 2010 at 1:09 AM, Vadym Chepkov <vchepkov at gmail.com> wrote:
> >> Hi
> >> 
> >> I noticed pengine (pacemaker-1.0.8-6.el5) creates quite a lot of files in
> >> /var/lib/pengine,
> >> especially when cluster-recheck-interval is set to enable failure-timeout
> >> checks.
> > 
> > pengine metadata | grep series-max
> 
> Great, thanks, after I set it, I take it I need to clean "excessive" manually?

Yes, I think so.

> # crm configure show |grep series-max
> 	pe-error-series-max="10" \
> 	pe-warn-series-max="10" \
> 	pe-input-series-max="10"

You don't want to set it that low. PE input files are part of
your cluster history. Set it to a few thousand.

> # ls /var/lib/pengine/|wc -l
> 123500
> 
> > 
> >> /var/lib/heartbeat/crm/ seems also growing unattended.
> > 
> > Unless there is a bug somewhere, it should be storing only the last
> > 100 configurations.
> 
> you are right, they are being "reused"
> 
> > 
> >> Does pacemaker do any self-maintenance or it will cause system to crash
> >> eventually by utilizing all inodes?
> >> 
> >> Also, why "cluster-recheck-interval" not in "pengine metadata" output? Is it
> >> deprecated?
> > 
> > Its controlled by the crmd, so its in the "crmd metadata" output.
> 
> Ah, then crm cli has a bug? 
> 
> When you click <TAB> metadata of crmd is not shown:
> 
> crm(live)configure# property 
> batch-limit=                  no-quorum-policy=             pe-input-series-max=          stonith-enabled=
> cluster-delay=                node-health-green=            pe-warn-series-max=           stonith-timeout=
> default-action-timeout=       node-health-red=              remove-after-stop=            stop-all-resources=
> default-resource-stickiness=  node-health-strategy=         start-failure-is-fatal=       stop-orphan-actions=
> is-managed-default=           node-health-yellow=           startup-fencing=              stop-orphan-resources=
> maintenance-mode=             pe-error-series-max=          stonith-action=               symmetric-cluster=

Yes, you can file a bugzilla for that. Note that the property
will still be set if you type it.

Thanks,

Dejan

> Thanks,
> Vadym
> 
> 
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