Based on Chris' comment above[1] I'm closing this issue on Nova. Since Stein it is not an issue and Rocky is already in extended maintenance. If somebody want's to fix this in Rocky and older branches the please set the bug back to New.
[1] https://bugs.launchpad.net/nova/+bug/1829062/comments/19 ** Changed in: nova Status: New => Won't Fix -- You received this bug notification because you are a member of Yahoo! Engineering Team, which is subscribed to OpenStack Compute (nova). https://bugs.launchpad.net/bugs/1829062 Title: nova placement api non-responsive due to eventlet error Status in OpenStack Compute (nova): Won't Fix Status in StarlingX: Fix Released Status in tripleo: Triaged Bug description: In starlingx setup, we're running a nova docker image based on nova stable/stein as of May 6. We're seeing nova-compute processes stalling and not creating resource providers with placement. openstack hypervisor list +----+---------------------+-----------------+-----------------+-------+ | ID | Hypervisor Hostname | Hypervisor Type | Host IP | State | +----+---------------------+-----------------+-----------------+-------+ | 5 | worker-1 | QEMU | 192.168.206.247 | down | | 8 | worker-2 | QEMU | 192.168.206.211 | down | +----+---------------------+-----------------+-----------------+-------+ Observe this error in nova-placement-api logs related to eventlet at same time: 2019-05-14 00:44:03.636229 Traceback (most recent call last): 2019-05-14 00:44:03.636276 File "/var/lib/openstack/lib/python2.7/site-packages/eventlet/hubs/hub.py", line 460, in fire_timers 2019-05-14 00:44:03.636536 timer() 2019-05-14 00:44:03.636560 File "/var/lib/openstack/lib/python2.7/site-packages/eventlet/hubs/timer.py", line 59, in _call_ 2019-05-14 00:44:03.636647 cb(*args, **kw) 2019-05-14 00:44:03.636661 File "/var/lib/openstack/lib/python2.7/site-packages/eventlet/semaphore.py", line 147, in _do_acquire 2019-05-14 00:44:03.636774 waiter.switch() 2019-05-14 00:44:03.636792 error: cannot switch to a different thread This is a new behaviour for us in stable/stein and suspect this is due to merge of eventlet related change on May 4: https://github.com/openstack/nova/commit/6755034e109079fb5e8bbafcd611a919f0884d14 To manage notifications about this bug go to: https://bugs.launchpad.net/nova/+bug/1829062/+subscriptions -- Mailing list: https://launchpad.net/~yahoo-eng-team Post to : [email protected] Unsubscribe : https://launchpad.net/~yahoo-eng-team More help : https://help.launchpad.net/ListHelp

