[jira] [Created] (HIVE-25642) Log a warning if multiple Compaction Worker versions are running compactions

["Csomor Viktor (Jira)" <ji...@apache.org>]

Csomor Viktor created HIVE-25642:
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             Summary: Log a warning if multiple Compaction Worker versions are running compactions
                 Key: HIVE-25642
                 URL: https://issues.apache.org/jira/browse/HIVE-25642
             Project: Hive
          Issue Type: Improvement
          Components: Hive
    Affects Versions: 4.0.0
            Reporter: Csomor Viktor
            Assignee: Csomor Viktor


Log a warning if multiple versions of a Compaction Workers are running.

The start time of the individual HMS services are not stored at the moment, however this information could proved a good baseline of detecting multiple Worker versions. 
Due to the lack of this information we can check periodically in the past N hours to detect the versions.
The N hours can be configured by {{metastore.compactor.worker.detect_multiple_versions.threshold}} property.

This periodical check only make sense if the Compaction are enabled.



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