Description of problem: While investigating performance problem for one of our VIP customers we found out that openvswitch sends numerous messages like [1] to /var/log/messages on controller nodes. Since controller nodes are not actually forwarding significant amount of traffic in customer's case (ML2/OVN with DVR), these messages doesn't seem to be a root cause of customer's issues. At the same time OVN discussions like https://mail.openvswitch.org/pipermail/ovs-discuss/2021-August/051345.html makes me think that something is wrong and there is possible routing loop. I am reporting this bugzilla to ask for your opinion about messages [1] and for your advice about next steps: logged messages look too generic for me and I am not sure how to identify OVN entities possibly affected by them. [1] May 2 04:18:05 HOSTNAME kernel: openvswitch: ovs-system: deferred action limit reached, drop recirc action Version-Release number of selected component (if applicable): Red Hat OpenStack Platform release 16.2.4 Additional info: sosreports from controller nodes are attached to support case.
We also have /var/lib/openvswitch/ovn/ folder from controller node attached to case.