** Changed in: python-cinderclient
Status: Fix Committed => Fix Released
** Changed in: python-cinderclient
Milestone: None => 1.3.1
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Engineering Team, which is subscribed to OpenStack Dashboard (Horizon).
https://bugs.launchpad.net/bugs/1182678
Title:
Horizon repeating log messages when DEBUG=True
Status in OpenStack Dashboard (Horizon):
Fix Released
Status in Python client library for Cinder:
Fix Released
Status in Python client library for Keystone:
Fix Released
Status in Python client library for Nova:
Fix Released
Bug description:
When setting DEBUG=True (i.e., in devstack and other development
environments) we noticed that all the python-*client API calls would
get logged multiple times. On high-traffic dev instances, it would be
dozens of repeats for each log message. This made development work on
these instances an experience somewhere on the scale between "hey,
this is annoying" and "it's impossible to tell what's going on through
all this noise"
Testing revealed that the problem seems to stem from different
mod_wsgi processes/threads vivifying their own API client objects.
The clients seem to blindly shove logging handlers into the list
without looking to see if it's necessary to do so first, and this
causes Horizon to have dozens of identical handlers for each log
message, and it then does what you'd expect.
This isn't a problem with Horizon per se, but Horizon is affected by
it. So far, we've observed the problem with novaclient, cinderclient
and keystoneclient, but all the client libraries likely behave in the
same fashion.
We also discovered in testing that there is no logging handler defined
for cinderclient in the local_settings.py, so it uses the default
hander.
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