Nova

This section lists the alerts for Nova:

• NovaDataDirectoryMountedRO

• NovaInstanceStuckInVerifyResize

• NovaOrphanedAllocationsDetected

• NovaServiceDisabled

• NovaServiceDown

• NovaServiceOutage

NovaDataDirectoryMountedRO

Severity	Critical
Summary	Nova data directory is mounted as read-only.
Description	Nova data directory (/var/lib/nova) on the compute node {{ $labels.node }} ({{ $labels.machine_name }} machine) is mounted as read-only. This may indicate disk failures. Investigate the disk health.

NovaInstanceStuckInVerifyResize

Severity	Major
Summary	Nova instance stuck in VERIFY_RESIZE.
Description	The {{ $labels.name }} ({{ $labels.id }}) instance has been in the VERIFY_RESIZE state for more than 30 minutes. Confirm or revert the resize.

NovaOrphanedAllocationsDetected

Severity	Major
Summary	Openstack Nova orphaned allocations detected.
Description	Orphaned resource allocations are detected on compute nodes.

NovaServiceDisabled

Severity	Critical
Summary	{{ $labels.binary }} service is disabled.
Description	The {{ $labels.binary }} service is disabled in the {{ $labels.zone }} zone on all hosts.

NovaServiceDown

Severity	Critical
Summary	{{ $labels.binary }} service is down.
Description	The {{ $labels.binary }} service is in the down state in the {{ $labels.zone }} zone on the {{ $labels.host }} host.

NovaServiceOutage

Severity	Critical
Summary	{{ $labels.binary }} service outage.
Description	The {{ $labels.binary }} service is down in the {{ $labels.zone }} zone on all hosts where it is enabled.