nova conductor/scheduler no valid hosts found errors are difficult to understand
Issue
- The nova conductor log only says
No valid host found, but doesn't give any reason why. Enabling debug and verbose logging doesn't help. - Is there a way to make the
No valid host foundmessages give the real reason for failure? - How does one understand or troubleshoot the
No valid host founderror in nova-conductor or nova-scheduler logs? - This log message doesn't give very informative details on what the failure was:
NoValidHost: No valid host was found. There are not enough hosts available.
Environment
- Red Hat OpenStack Platform 9.0
- Red Hat OpenStack Platform 8.0
- Red Hat OpenStack Platform 7.0
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