I'm not sure how many people read release notes for the various oslo libraries, so I'm posting this here since it might have a minor impact for some tooling operators are using. We've just merged [1] which changes the default logging format used by oslo.log, configured using the '[DEFAULT] logging_context_format_string' config option. Previously, our logging format was: %(asctime)s.%(msecs)03d %(process)d %(levelname)s %(name)s [%(request_id)s %(user_identity)s] %(instance)s%(message)s This looks like e.g. 2022-04-26 10:49:14.629 4187413 WARNING nova.conductor.api [req-ffddccd3-8804-4fc3-a2f3-a05af1eb569f - - - - -] This has now been modified to include the global request ID as well as the local request ID: %(asctime)s.%(msecs)03d %(process)d %(levelname)s %(name)s [%(global_request_id)s %(request_id)s %(user_identity)s] %(instance)s%(message)s This looks like e.g.: 2022-04-26 10:53:16.756 4187784 DEBUG nova.service [None req-f1698728-a2d6-4e02-a6b4-cf2cd398c02f - - - - -] Join ServiceGroup membership for this service compute This will affect pretty much all services using the out-of-the-box logging configuration. However, I suspect very few if any users are using the standard configuration. DevStack overrides '[DEFAULT] logging_context_format_string' for all services [2] and I suspect other installers probably do the same. If you are using the standard configuration, you might need to modify some log parsing/scraping tooling when this rolls around or manually set '[DEFAULT] logging_context_format_string' in your service configuration files. Cheers, Stephen [1] https://review.opendev.org/c/openstack/oslo.log/+/838190 [2] https://github.com/openstack/devstack/blob/3b0c035b9/functions#L677-L707