Public bug reported:
This issue appears to be a consequence of
https://bugs.launchpad.net/ubuntu/+source/nova/+bug/1420572 where we
added a 'wait-for-state running' to the nova-compute upstart so as to
ensure that neutron-ovs-cleanup has finished before nova-compute starts.
I have started to spot, however, that on some hosts (metal only) there
is now a race between the two whereby nova-compute fails to start or
boot/reboot with the following in /var/log/upstart/nova-compute.log:
...
libvirt-bin stop/waiting
wait-for-state stop/waiting
neutron-ovs-cleanup start/pre-start, process 3084
start: Job failed to start
If I manually restart nova-compute all is fine. So this looks like a
race between nova-compute's wait-for-state and neutron-ovs-cleanup's
pre-start -> start/running.
** Affects: neutron (Ubuntu)
Importance: High
Status: New
** Package changed: nova (Ubuntu) => neutron (Ubuntu)
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https://bugs.launchpad.net/bugs/1471022
Title:
[SRU] race between nova-compute and neutron-ovs-cleanup
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