Recent test run(s) have shown memory exhaustion on the nova
cloud controller units. This exhibits itself as the controller
dropping messages from the compute nodes and logging messages like:
Traceback (most recent call last):
File "/usr/lib/python3/dist-packages/oslo_service/threadgroup.py", line 268, in _perform_action_on_threads
File "/usr/lib/python3/dist-packages/oslo_service/threadgroup.py", line 342, in <lambda>
lambda x: x.wait(),
File "/usr/lib/python3/dist-packages/oslo_service/threadgroup.py", line 61, in wait
return self.thread.wait()
File "/usr/lib/python3/dist-packages/eventlet/greenthread.py", line 180, in wait
return self._exit_event.wait()
File "/usr/lib/python3/dist-packages/eventlet/event.py", line 125, in wait
result = hub.switch()
File "/usr/lib/python3/dist-packages/eventlet/hubs/hub.py", line 298, in switch
return self.greenlet.switch()
File "/usr/lib/python3/dist-packages/eventlet/hubs/hub.py", line 350, in run
self.wait(sleep_time)
File "/usr/lib/python3/dist-packages/eventlet/hubs/poll.py", line 80, in wait
presult = self.do_poll(seconds)
File "/usr/lib/python3/dist-packages/eventlet/hubs/epolls.py", line 31, in do_poll
return self.poll.poll(seconds)
MemoryError
to the nova-conductor log.
It seems very likely this issue is specific to Bionic Stein so it
may be a little wasteful to have increased the memory allocation
for all the bundles but I think consistancy between the bundles is
more important.
Change-Id: I2d45acadcd221786513c49256f087114a985e74f
0f4c7e7aee