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<p dir="ltr">Oops, I apparently wasn't reading carefully enough and mixed your issue with hosts and mine with guests.</p>
<p dir="ltr">Sorry for the noise!<br>
Arne</p>
<div class="x_quote">Am 24.07.2014 17:42 schrieb Tim Bell <Tim.Bell@cern.ch>:<br type="attribution">
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If it is the hypervisors rebooting, a possible scenario would be if you have a BMC and enabled watchdog. This will reboot the server if it does not call home to the BMC every 'n' seconds.<br>
<br>
If you have a very busy hypervisor, you may need to tune the watchdog timeout.<br>
<br>
I suspect something would be logged in the BMC ipmi sel logs but not sure.<br>
<br>
Tim<br>
<br>
> -----Original Message-----<br>
> From: Arne Wiebalck [<a href="mailto:Arne.Wiebalck@cern.ch">mailto:Arne.Wiebalck@cern.ch</a>]<br>
> Sent: 24 July 2014 17:10<br>
> To: Juan José Pavlik Salles<br>
> Cc: openstack-operators@lists.openstack.org<br>
> Subject: Re: [Openstack-operators] Compute nodes reboot periodically by their<br>
> own<br>
> <br>
> Hi,<br>
> <br>
> Your compute nodes reboot or are shut off?<br>
> <br>
> I am currently looking at some cases where VMs seem to spontaneously shut<br>
> themselves off. At least from the nova logs’ perspective there is no difference to<br>
> a normal shutdown, VM owners however confirm that they did not touch their<br>
> VMs. So far I was unable to explain this.<br>
> <br>
> This is with Havana on a RHEL6 derivative, though.<br>
> <br>
> Cheers,<br>
> Arne<br>
> <br>
> --<br>
> Arne Wiebalck<br>
> CERN IT<br>
> <br>
> On 24 Jul 2014, at 16:46, Juan José Pavlik Salles <jjpavlik@gmail.com> wrote:<br>
> <br>
> > Hello guys, We have got a small Grizzly cloud running since the begging of<br>
> 2013 with Ubuntu 12.04. 2 compute nodes, a storage node and a controller,<br>
> nothing too fancy. Everything works just fine, but... the compute nodes reboot<br>
> themselves periodically, sometimes every 2 weeks, some times once a month.<br>
> I've done almost everything I can think of: memory checks, analysed the logs,<br>
> moved all the VMs to one node, and I just can't find the problem.<br>
> ><br>
> > Have you ever heard this kind of behaviour on compute nodes? Any ideas<br>
> where I should look for the problem?<br>
> ><br>
> > Thanks in advance.<br>
> ><br>
> > --<br>
> > Pavlik Salles Juan José<br>
> > Blog - <a href="http://viviendolared.blogspot.com">http://viviendolared.blogspot.com</a><br>
> > _______________________________________________<br>
> > OpenStack-operators mailing list<br>
> > OpenStack-operators@lists.openstack.org<br>
> > <a href="http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack-operator">
http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack-operator</a><br>
> > s<br>
> <br>
> <br>
> _______________________________________________<br>
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> OpenStack-operators@lists.openstack.org<br>
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