[Openstack] eventlet weirdness
Yun Mao
yunmao at gmail.com
Wed Feb 29 21:02:19 UTC 2012
Hi,
we sometimes notice this error message which prevent us from starting
nova services occasionally. We are using a somewhat modified diablo
stable release on Ubuntu 11.10. It may very well be the problem from
our patches but I'm wondering if you guys have any insight. In what
condition does this error occur? There is a similar bug in here:
https://bugs.launchpad.net/nova/+bug/831599
but that doesn't offer much insight to me. Helps are very appreciated. Thanks,
Yun
2012-02-23 16:54:52,788 DEBUG nova.utils
[43f98259-6ba8-4e5d-bc0e-9eab978194e5 None None] backend <module
'nova.db.sqlalchemy.api' from
'/opt/stack/nova/nova/db/sqlalchemy/api.pyc'> from (pid=6385)
__get_backend /opt/stack/nova/nova/utils.py:449
Traceback (most recent call last):
File "/usr/lib/python2.7/dist-packages/eventlet/hubs/hub.py", line
336, in fire_timers
timer()
File "/usr/lib/python2.7/dist-packages/eventlet/hubs/timer.py", line
56, in __call__
cb(*args, **kw)
File "/usr/lib/python2.7/dist-packages/eventlet/semaphore.py", line
95, in _do_acquire
waiter.switch()
error: cannot switch to a different thread
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