** Changed in: neutron/havana
Status: Fix Committed => Fix Released
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https://bugs.launchpad.net/bugs/1263866
Title:
OVS lib deferred apply cannot handle concurrency
Status in OpenStack Neutron (virtual network service):
Fix Released
Status in neutron havana series:
Fix Released
Status in neutron icehouse series:
Fix Released
Bug description:
OVS lib propose a deferred apply methods to save system calls to 'ovs-
ofctl' binaries ('ovs-ofctl' can apply flow from file or stdin if file
is '-').
This method use a dict for 'add', mod' or 'del' flow actions that contain a
concatenated string flows. This dict is purge after all flows are applied at
the end of 'deferred_apply_off' method.
If another call is made on that dict during the 'deferred_apply_off', some
flows could be deleted a the end when they have not been applied.
I can see that on ML2 plugin with l2-pop mechanism driver. If I delete
more than one port at a time, some flooding flow rules could be not
deleted on the br-tun bridge.
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