Comment 3 for bug 1788119

Adding in Doug who has more context on the oslo.log change.

Background:

The original bug:
https://bugs.launchpad.net/mos/+bug/1484501

See Doug's comment here:
https://review.openstack.org/#/c/213795/2/oslo_log/log.py

Looks like "oslo_messaging" was added to the defaults by this patch:

https://review.openstack.org/#/c/458069/

From Doug's comment on log.py it appears that the "oslo.<xxx>" format is the desired format.

The addition of "oslo_messaging" to the defaults appears to be a work around to oslo.messaging's inconsistent use of logging.

IMHO all oslo.<whatever> modules that have a dependency on oslo.log should use oslo.log for all logging. Using both oslo.log and py logging by the same module should be a bug (unless there's a specific use case requirement - like notification logging).

So if oslo.cache is using both oslo.log and py logging it should be fixed to use only oslo.log.

Doug - what say ye?