Hi everyone, I'm not sure it should be bug report or not. So I email out about this issue. In these days, I found the Rocky source deployment always failed at Ceilometer bootstrapping. Then I found it failed at ceilometer-upgrade. So I tried to looking at ceilometer-upgrade.log and the error shows it failed to import ujson. https://pastebin.com/nGqsM0uf Then I googled it and found this issue is already happened and released fixes. https://github.com/esnme/ultrajson/issues/346 But it seems like the container still using the questionable one, even today (Jan 30 UTC+8). And this not only affected to Ceilometer, but may also Gnocchi. I think we have to patch it, but not sure about the workaround. Does anyone have good idea? Many thanks, Eddie. -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.openstack.org/pipermail/openstack-discuss/attachments/20200130/a34f67a3/attachment.html>