[jira] [Created] (HDDS-2349) QueryNode does not respect null values for opState or state

["Stephen O'Donnell (Jira)" <ji...@apache.org>]

Stephen O'Donnell created HDDS-2349:
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             Summary: QueryNode does not respect null values for opState or state
                 Key: HDDS-2349
                 URL: https://issues.apache.org/jira/browse/HDDS-2349
             Project: Hadoop Distributed Data Store
          Issue Type: Sub-task
          Components: SCM
    Affects Versions: 0.5.0
            Reporter: Stephen O'Donnell
            Assignee: Stephen O'Donnell


In HDDS-2197, the queryNode API call was changed to allow operational state (in_service, decommissioning etc) to be passed along with the node health state. This changed allowed for a null state to indicate a wildcard, so passing:

opState = null
healthState = HEALTHY

Allows one to find all the healthy nodes, irrespective of their opState.

However, for an enum protobuf field, if no value is specified, the first enum in the set is returned as the default. This means that when a null is passed for opState, only the IN_SERVICE nodes are returned. Similar for health state - passing a null will return only HEALTHY nodes.

This PR will fix this issue so the null value acts as a wildcard as intended.



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