[Bug 985489] Re: nova-compute stops processing compute.$HOSTNAME occasionally

[Andrew Glen-Young]

@Rafi,

Thanks for the suggestion. What you describe used to happen to me when
we were using Oneiric's libvirtd (LP#903212). Since upgrading to Precise
I haven't experienced the exact problem you're having.

My issue is that libvirtd seems to temporarily stop responding, enough
to block nova-compute, but it then responds to external commands later
when I probe it.

Looking through my monitoring logs, I can see that libvirtd occasionally
stops responding, but not for long enough to generate an alert. I
speculate that this is a timing issue, where libvirtd has stopped
responding for a very limited period and during that moment nova-compute
attempts to poll libvirtd?

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https://bugs.launchpad.net/bugs/985489

Title:
  nova-compute stops processing compute.$HOSTNAME occasionally

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