OVN metadata randomly stops working
Affects | Status | Importance | Assigned to | Milestone | |
---|---|---|---|---|---|
neutron |
Fix Released
|
Medium
|
Terry Wilson |
Bug Description
We found that OVN metadata will not work randomly when OVN is writing a snapshot.
1, At 12:30:35, OVN started to transfer leadership to write a snapshot
$ find sosreport-
sosreport-
sosreport-
sosreport-
2, At 12:30:36, neutron-
$ find sosreport-
sosreport-
sosreport-
3, At 12:57:53, we saw the error 'No port found in network', then we will hit the problem that OVN metadata does not work randomly
2022-08-18 12:57:53.800 3730 ERROR neutron.
After the problem occurs, restarting neutron-
/usr/bin/
One lp bug #1990978 [1] is trying to reducing the frequency of transfers, it should be beneficial to this problem.
But it only reduces the occurrence of problems, not completely avoiding them. I wonder if we need to add some retry logic on the neutron side
NOTE: The openstack version we are using is focal-xena, and openvswitch's version is 2.16.0-
[1] https:/
tags: | added: ovn |
Changed in neutron: | |
importance: | Undecided → Medium |
assignee: | nobody → Terry Wilson (otherwiseguy) |
Do you use OVN in clustered (RAFT) mode? OVS 2.17+ is strongly recommended in that case