Public bug reported: After the change described in https://mail.openvswitch.org/pipermail/ovs-dev/2022-May/393966.html was merged and released in stable OVN 22.03, there is a possibility to create an endless loop of revision_number update in external_ids of ports and router_ports. We have confirmed the bug in Ussuri and Yoga. When the problem happens, the Neutron log would look like this:
2022-05-13 09:30:56.318 25 ... Successfully bumped revision number for resource 8af189bd-c5bf-48a9-b072-3fb6c69ae592 (type: router_ports) to 4815 2022-05-13 09:30:56.366 25 ... Running txn n=1 command(idx=0): CheckRevisionNumberCommand(...) 2022-05-13 09:30:56.367 25 ... Running txn n=1 command(idx=1): SetLSwitchPortCommand(...) 2022-05-13 09:30:56.367 25 ... Running txn n=1 command(idx=2): PgDelPortCommand(...) 2022-05-13 09:30:56.467 25 ... Successfully bumped revision number for resource 8af189bd-c5bf-48a9-b072-3fb6c69ae592 (type: ports) to 4815 2022-05-13 09:30:56.880 25 ... Running txn n=1 command(idx=0): CheckRevisionNumberCommand(...) 2022-05-13 09:30:56.881 25 ... Running txn n=1 command(idx=1): UpdateLRouterPortCommand(...) 2022-05-13 09:30:56.881 25 ... Running txn n=1 command(idx=2): SetLRouterPortInLSwitchPortCommand(...) 2022-05-13 09:30:56.984 25 ... Successfully bumped revision number for resource 8af189bd-c5bf-48a9-b072-3fb6c69ae592 (type: router_ports) to 4816 2022-05-13 09:30:57.057 25 ... Running txn n=1 command(idx=0): CheckRevisionNumberCommand(...) 2022-05-13 09:30:57.057 25 ... Running txn n=1 command(idx=1): SetLSwitchPortCommand(...) 2022-05-13 09:30:57.058 25 ... Running txn n=1 command(idx=2): PgDelPortCommand(...) 2022-05-13 09:30:57.159 25 ... Successfully bumped revision number for resource 8af189bd-c5bf-48a9-b072-3fb6c69ae592 (type: ports) to 4816 2022-05-13 09:30:57.523 25 ... Running txn n=1 command(idx=0): CheckRevisionNumberCommand(...) 2022-05-13 09:30:57.523 25 ... Running txn n=1 command(idx=1): UpdateLRouterPortCommand(...) 2022-05-13 09:30:57.524 25 ... Running txn n=1 command(idx=2): SetLRouterPortInLSwitchPortCommand(...) 2022-05-13 09:30:57.627 25 ... Successfully bumped revision number for resource 8af189bd-c5bf-48a9-b072-3fb6c69ae592 (type: router_ports) to 4817 2022-05-13 09:30:57.674 25 ... Running txn n=1 command(idx=0): CheckRevisionNumberCommand(...) 2022-05-13 09:30:57.674 25 ... Running txn n=1 command(idx=1): SetLSwitchPortCommand(...) 2022-05-13 09:30:57.675 25 ... Running txn n=1 command(idx=2): PgDelPortCommand(...) 2022-05-13 09:30:57.765 25 ... Successfully bumped revision number for resource 8af189bd-c5bf-48a9-b072-3fb6c69ae592 (type: ports) to 4817 (full version here: https://pastebin.com/raw/NLP1b6Qm). In our lab environment we have confirmed that the problem is gone after mentioned change is rolled back. ** Affects: neutron Importance: Undecided Status: New -- You received this bug notification because you are a member of Yahoo! Engineering Team, which is subscribed to neutron. https://bugs.launchpad.net/bugs/1973347 Title: OVN revision_number infinite update loop Status in neutron: New Bug description: After the change described in https://mail.openvswitch.org/pipermail/ovs-dev/2022-May/393966.html was merged and released in stable OVN 22.03, there is a possibility to create an endless loop of revision_number update in external_ids of ports and router_ports. We have confirmed the bug in Ussuri and Yoga. When the problem happens, the Neutron log would look like this: 2022-05-13 09:30:56.318 25 ... Successfully bumped revision number for resource 8af189bd-c5bf-48a9-b072-3fb6c69ae592 (type: router_ports) to 4815 2022-05-13 09:30:56.366 25 ... Running txn n=1 command(idx=0): CheckRevisionNumberCommand(...) 2022-05-13 09:30:56.367 25 ... Running txn n=1 command(idx=1): SetLSwitchPortCommand(...) 2022-05-13 09:30:56.367 25 ... Running txn n=1 command(idx=2): PgDelPortCommand(...) 2022-05-13 09:30:56.467 25 ... Successfully bumped revision number for resource 8af189bd-c5bf-48a9-b072-3fb6c69ae592 (type: ports) to 4815 2022-05-13 09:30:56.880 25 ... Running txn n=1 command(idx=0): CheckRevisionNumberCommand(...) 2022-05-13 09:30:56.881 25 ... Running txn n=1 command(idx=1): UpdateLRouterPortCommand(...) 2022-05-13 09:30:56.881 25 ... Running txn n=1 command(idx=2): SetLRouterPortInLSwitchPortCommand(...) 2022-05-13 09:30:56.984 25 ... Successfully bumped revision number for resource 8af189bd-c5bf-48a9-b072-3fb6c69ae592 (type: router_ports) to 4816 2022-05-13 09:30:57.057 25 ... Running txn n=1 command(idx=0): CheckRevisionNumberCommand(...) 2022-05-13 09:30:57.057 25 ... Running txn n=1 command(idx=1): SetLSwitchPortCommand(...) 2022-05-13 09:30:57.058 25 ... Running txn n=1 command(idx=2): PgDelPortCommand(...) 2022-05-13 09:30:57.159 25 ... Successfully bumped revision number for resource 8af189bd-c5bf-48a9-b072-3fb6c69ae592 (type: ports) to 4816 2022-05-13 09:30:57.523 25 ... Running txn n=1 command(idx=0): CheckRevisionNumberCommand(...) 2022-05-13 09:30:57.523 25 ... Running txn n=1 command(idx=1): UpdateLRouterPortCommand(...) 2022-05-13 09:30:57.524 25 ... Running txn n=1 command(idx=2): SetLRouterPortInLSwitchPortCommand(...) 2022-05-13 09:30:57.627 25 ... Successfully bumped revision number for resource 8af189bd-c5bf-48a9-b072-3fb6c69ae592 (type: router_ports) to 4817 2022-05-13 09:30:57.674 25 ... Running txn n=1 command(idx=0): CheckRevisionNumberCommand(...) 2022-05-13 09:30:57.674 25 ... Running txn n=1 command(idx=1): SetLSwitchPortCommand(...) 2022-05-13 09:30:57.675 25 ... Running txn n=1 command(idx=2): PgDelPortCommand(...) 2022-05-13 09:30:57.765 25 ... Successfully bumped revision number for resource 8af189bd-c5bf-48a9-b072-3fb6c69ae592 (type: ports) to 4817 (full version here: https://pastebin.com/raw/NLP1b6Qm). In our lab environment we have confirmed that the problem is gone after mentioned change is rolled back. To manage notifications about this bug go to: https://bugs.launchpad.net/neutron/+bug/1973347/+subscriptions -- Mailing list: https://launchpad.net/~yahoo-eng-team Post to : yahoo-eng-team@lists.launchpad.net Unsubscribe : https://launchpad.net/~yahoo-eng-team More help : https://help.launchpad.net/ListHelp
