Instance Unexpectedly Not Found

Problem

  • Instance operations (start, stop, reboot, resize, etc.) are failing for an instance and it is in 'ERROR' state.
  • Instance 'fault' field is populated with an error similar to the following.
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  • The hypervisor log shows that the instance is "unexpectedly not found".

-- /var/log/pf9/ostackhost.log --

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  • The ephemeral disk file and XML metadata still exist on the instance storage path.
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Environment

  • Platform9 Managed OpenStack - All Versions
  • Nova

Cause

The instance failed to boot previously.

Resolution

  1. Perform a hard-reboot of the instance to attempt to re-define the instance via Nova (CLI only).
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  1. If a hard-reboot doesn't work to address the issue, re-define the instance manually on the hypervisor using the 'virsh' utility.
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