[Bug 1460164] Re: upgrade of openvswitch-switch can sometimes break neutron-plugin-openvswitch-agent

[James Page]

This is caused by the restart of the ovs daemons (part of the upgrade
process - its done post install to minimize downtime):

2015-05-28 14:24:18.336 47866 ERROR neutron.agent.linux.ovsdb_monitor
[-] Error received from ovsdb monitor: ovsdb-client:
unix:/var/run/openvswitch/db.sock: receive failed (End of file)

I would suspect that the code in neutron is not behaving very nicely in
terms of recovering from this disconnect, resulting the in the lockup
you see.

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https://bugs.launchpad.net/bugs/1460164

Title:
  upgrade of openvswitch-switch can sometimes break neutron-plugin-
  openvswitch-agent

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