** Also affects: cloud-archive
Importance: Undecided
Status: New
** Also affects: cloud-archive/wallaby
Importance: Undecided
Status: New
** Changed in: cloud-archive
Status: New => Invalid
** Changed in: cloud-archive/wallaby
Status: New => Triaged
** Changed in: cloud-archive/wallaby
Importance: Undecided => High
--
You received this bug notification because you are a member of Yahoo!
Engineering Team, which is subscribed to neutron.
https://bugs.launchpad.net/bugs/1950679
Title:
[ovn] neutron_ovn_db_sync_util hangs on sync_routers_and_rports
Status in Ubuntu Cloud Archive:
Invalid
Status in Ubuntu Cloud Archive wallaby series:
Triaged
Status in neutron:
Fix Released
Bug description:
neutron-ovn-db-sync-util hangs in certain scenarios while running
sync_routers_and_rports.
Specifically, it seems to be hanging on self.l3_plugin.get_routers(ctx)
-> model_query.get_collection(...) of get_routers(...) in neutron.db.l3_db.py
-> get_collection(...) in neutron_lib.db.model_query.py runs dict_funcs which
somehow reaches to nb_ovn property accessor in
neutron.plugins.ml2.drivers.ovn.mech_driver.mech_driver.py
-> which runs self._post_fork_event.wait()
That mutex seems to never be "set" and blocks further execution
because it might not be applicable to this flow.
It looks like the neutron-ovn-db-sync-util might need to always "set"
it since it mocks other parts of the NB/DB client in a similar fashion
to some unit tests.
I'm not yet sure what kind of exact circumstances lead to that access
and that wait(), syncing via the util to an empty OVN NB/DB seems to
work. I see the issue more frequently on subsequent runs.
To manage notifications about this bug go to:
https://bugs.launchpad.net/cloud-archive/+bug/1950679/+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
