I'm closing this because of inactivity. I've never seen this problem, either.
** Changed in: oslo.config Status: New => Invalid ** Changed in: nova Status: Incomplete => Invalid -- You received this bug notification because you are a member of Yahoo! Engineering Team, which is subscribed to OpenStack Compute (nova). https://bugs.launchpad.net/bugs/1884762 Title: Unhandled error: RuntimeError: dictionary changed size during iteration Status in OpenStack Compute (nova): Invalid Status in oslo.config: Invalid Bug description: Observed in CentOS8 nova-scheduler logs: 2020-06-23 13:37:46.779 23 ERROR nova Traceback (most recent call last): 2020-06-23 13:37:46.779 23 ERROR nova File "/usr/bin/nova-scheduler", line 10, in <module> 2020-06-23 13:37:46.779 23 ERROR nova sys.exit(main()) 2020-06-23 13:37:46.779 23 ERROR nova File "/usr/lib/python3.6/site-packages/nova/cmd/scheduler.py", line 53, in main 2020-06-23 13:37:46.779 23 ERROR nova service.serve(server, workers=workers) 2020-06-23 13:37:46.779 23 ERROR nova File "/usr/lib/python3.6/site-packages/nova/service.py", line 489, in serve 2020-06-23 13:37:46.779 23 ERROR nova restart_method='mutate') 2020-06-23 13:37:46.779 23 ERROR nova File "/usr/lib/python3.6/site-packages/oslo_service/service.py", line 842, in launch 2020-06-23 13:37:46.779 23 ERROR nova launcher.launch_service(service, workers=workers) 2020-06-23 13:37:46.779 23 ERROR nova File "/usr/lib/python3.6/site-packages/oslo_service/service.py", line 606, in launch_service 2020-06-23 13:37:46.779 23 ERROR nova self._start_child(wrap) 2020-06-23 13:37:46.779 23 ERROR nova File "/usr/lib/python3.6/site-packages/oslo_service/service.py", line 575, in _start_child 2020-06-23 13:37:46.779 23 ERROR nova self.launcher.restart() 2020-06-23 13:37:46.779 23 ERROR nova File "/usr/lib/python3.6/site-packages/oslo_service/service.py", line 311, in restart 2020-06-23 13:37:46.779 23 ERROR nova self.conf.mutate_config_files() 2020-06-23 13:37:46.779 23 ERROR nova File "/usr/lib/python3.6/site-packages/oslo_config/cfg.py", line 3013, in mutate_config_files 2020-06-23 13:37:46.779 23 ERROR nova self._warn_immutability() 2020-06-23 13:37:46.779 23 ERROR nova File "/usr/lib/python3.6/site-packages/oslo_config/cfg.py", line 3040, in _warn_immutability 2020-06-23 13:37:46.779 23 ERROR nova for info, group in self._all_opt_infos(): 2020-06-23 13:37:46.779 23 ERROR nova File "/usr/lib/python3.6/site-packages/oslo_config/cfg.py", line 2502, in _all_opt_infos 2020-06-23 13:37:46.779 23 ERROR nova for info in self._opts.values(): 2020-06-23 13:37:46.779 23 ERROR nova RuntimeError: dictionary changed size during iteration 2020-06-23 13:37:46.779 23 ERROR nova 2020-06-23 13:37:46.780 20 CRITICAL nova [req-739357c3-918b-4778-ab8b-282fc7fad943 - - - - -] Unhandled error: RuntimeError: dictionary changed size during iteration OpenStack installed using RDO packages Package versions: (nova-scheduler)[nova@spsrc-controller-2 /]$ rpm -vqa | grep nova python3-nova-20.2.0-1.el8.noarch python3-novaclient-15.1.0-1.el8.noarch openstack-nova-common-20.2.0-1.el8.noarch openstack-nova-scheduler-20.2.0-1.el8.noarch (nova-scheduler)[nova@spsrc-controller-2 /]$ rpm -vqa | grep oslo python-oslo-utils-lang-3.41.5-1.el8.noarch python-oslo-i18n-lang-3.24.0-2.el8.noarch python-oslo-cache-lang-1.37.0-2.el8.noarch python3-oslo-concurrency-3.30.0-2.el8.noarch python3-oslo-messaging-10.2.0-2.el8.noarch python-oslo-versionedobjects-lang-1.36.1-1.el8.noarch python-oslo-policy-lang-2.3.3-1.el8.noarch python-oslo-log-lang-3.44.2-1.el8.noarch python3-oslo-i18n-3.24.0-2.el8.noarch python-oslo-concurrency-lang-3.30.0-2.el8.noarch python3-oslo-serialization-2.29.2-2.el8.noarch python3-oslo-config-6.11.2-1.el8.noarch python3-oslo-log-3.44.2-1.el8.noarch python3-oslo-service-1.40.2-2.el8.noarch python3-oslo-middleware-3.38.1-2.el8.noarch python-oslo-vmware-lang-2.34.1-1.el8.noarch python3-oslo-privsep-1.33.3-1.el8.noarch python3-oslo-vmware-2.34.1-1.el8.noarch python3-oslo-db-5.0.2-2.el8.noarch python3-oslo-policy-2.3.3-1.el8.noarch python3-oslo-reports-1.30.0-1.el8.noarch python3-oslo-rootwrap-5.16.1-1.el8.noarch python-oslo-privsep-lang-1.33.3-1.el8.noarch python-oslo-middleware-lang-3.38.1-2.el8.noarch python-oslo-db-lang-5.0.2-2.el8.noarch python3-oslo-utils-3.41.5-1.el8.noarch python3-oslo-context-2.23.0-2.el8.noarch python3-oslo-cache-1.37.0-2.el8.noarch python3-oslo-versionedobjects-1.36.1-1.el8.noarch python3-oslo-upgradecheck-0.3.2-1.el8.noarch To manage notifications about this bug go to: https://bugs.launchpad.net/nova/+bug/1884762/+subscriptions -- Mailing list: https://launchpad.net/~yahoo-eng-team Post to : yahoo-eng-team@lists.launchpad.net Unsubscribe : https://launchpad.net/~yahoo-eng-team More help : https://help.launchpad.net/ListHelp