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Posted to issues@hbase.apache.org by "Hari Sekhon (JIRA)" <ji...@apache.org> on 2018/07/26 10:05:00 UTC

[jira] [Created] (HBASE-20946) HMaster UI warn if Major Compaction hasn't occurred + completed successfully within hbase.hregion.majorcompaction time

Hari Sekhon created HBASE-20946:
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             Summary: HMaster UI warn if Major Compaction hasn't occurred + completed successfully within hbase.hregion.majorcompaction time
                 Key: HBASE-20946
                 URL: https://issues.apache.org/jira/browse/HBASE-20946
             Project: HBase
          Issue Type: Improvement
    Affects Versions: 1.1.2, 3.0.0, 2.2.0
            Reporter: Hari Sekhon


HMaster UI should warn if Major Compaction hasn't occurred and completed successfully within hbase.hregion.majorcompaction time (default 7 days).

Recent changes in HBase HBASE-6028 mean major compactions could be cancelled and result in read amplification over time. HMaster UI should monitor time since last major compaction completed successfully isn't greater than hbase.hregion.majorcompaction (plus some fudge factor).

If hbase.hregion.majorcompaction is zero then disable the check, as external tooling will trigger major compactions off peak and should instead monitor against JMX timestamp of last major compaction as per HBASE-20945.



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