** Also affects: neutron/havana
Importance: Undecided
Status: New
** Changed in: neutron/havana
Status: New => Fix Committed
** Changed in: neutron/havana
Milestone: None => 2013.2.4
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https://bugs.launchpad.net/bugs/1253993
Title:
OVS agent loop slowdown
Status in OpenStack Neutron (virtual network service):
Fix Released
Status in neutron havana series:
Fix Committed
Status in neutron icehouse series:
Fix Released
Bug description:
This is probably a regression of bug #1194438
From several checks with parallel jobs, it seems agent loop becomes slower
across iterations.
Slowness is not due to plugin RPC calls, which might be optimized anyway, but
is mainly due to applying iptables/ovs configurations.
This consistently occurs in tempest tests with parallelism enabled.
Example logs here: http://logs.openstack.org/20/57420/5/experimental
/check-tempest-devstack-vm-neutron-isolated-parallel/54c6db3/logs
1 - OVS AGENT - Iteration #33 starts at 1:36:03
2 - Nova API - Server POST request at 1.39.42
3 - Neutron Server - Neutron POST /ports at 1.39.44
4 - OVS Agent OVS DB monitor detects instance's tap a 1.39.45
5 - OVS Agent - Iteration #33 completes processing device filters (security
groups) at 1.39.51
6 - Nova API - Server ACTIVE by at 1.39.55
7 - Neutron Server - Floating IP POST at 1.39.55
8 - Neutron L3/VPN Agent - Floating IP ready at 1.40.37 (42 seconds???? -
this should be another investigation)
9 - OVS Agent - Iteration #33 on OVS agent complete processing devices at
1.40.16
NOTE: The added device was not processed because the iteration started before
the device was detected
10 - TEMPEST - TIMEOUT ON TEST at 1.40.56 - connection failed because
internal port not wired
11 - OVS Agent - Iteration #33 completes processing ancillary ports at 1:42:07
12 - OVS Agent - Iteration #34 starts at 1:42:08
13 - OVS Agent - Iteration #34 completes processing device filters at 1:43:35
14 - The wiring of the interface for the server is not captured by the logs
as the tempest test completed in the meanwhile.
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