The GCP CloudSQL instance underwent an automatic Google maintenance today at 8:30 UTC (Nov 14th 2022) after which the CPU jumped and stayed at 100% even after several restarts and an upgrade to eventual 32 cores. It runs MySQL 5.7.39.
Although memory allocation for the instance is significantly bigger, it has never exceeded 12GB now.
No related code was deployed that could have affected the Cloud SQL performance!
Has anyone experienced similar after maintenance?
High CPU usage in a database can be caused by a bunch of different things. For this kind of issue, please contact Google Cloud support.
Alternatively, to report an issue, it is better to do it at Issue Tracker, rather than write a post at this forum.
You can submit your report here:
Issue reports> > Google reviews every new issue report submitted by users. Sometimes one of our staff will ask for clarification or followup. After we’re able to replicate the issue, we’ll tell you that it’s been forwarded to the appropriate team.> > Depending on the circumstances, we may be able to provide periodic updates while an issue is being looked at, but usually we cannot provide too many specifics about the exact cause of an issue, or when it will be fixed.> > When we’ve fixed an issue in production, we’ll indicate this and then we’ll close the issue.
See also:
The issue is available at https://issuetracker.google.com/issues/259268472