No Valid Host From Host Aggregates Resulted in Instance Spawning Failure
Problem
- Cold Migration for the instance failed as it could not find any valid host for the instance to be deployed on.
- It queried the hosts available within host aggregates, however, since the flavor used for the instance did not match with any of the host aggregate metadata, migration failed.
Environment
- Platform9 Managed OpenStack - All Versions
Cause
Host aggregate to match the instance flavor specifications is not present.
Resolution
- Create a host aggregate matching the Instance flavor specifications.
- If the flavor properties is not set, it is mandatory to specify one or more key-value pairs that match the key-value pairs on the host aggregates with the scope aggregate_instance_extra_specs. For our case, it is the aggregate_instance_extra_specs: host='AggregateMatch' key-value pair.
- Set the key-value pair using the following command.
Additional Information
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