Comment 8 for bug 985489
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| Rafi Khardalian (rkhardalian) wrote Re: nova-compute stops processing compute.$HOSTNAME occasionally | #8 |
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We ran into this issue as well and as you have correctly stated, it's a result of libvirtd becoming unresponsive. Thus far we have not been able to resolve the issue at its core but I can offer you a workaround.
It's a simple script which calls virsh help (which will block indefinitely when the libvirtd process is unresponsive), wait 30 seconds for a response and restart libvirtd after the timeout has elapsed. Run it out of cron every 5 minutes or whatever you're comfortable doing.
https:/
By no means is this a fix but it'll mitigate the issue for you operationally for now. In every situation we've had the script trigger, nova-compute recovers as you would expect, without needing a restart.
Hope that helps.