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    • Sub-task
    • Status: Resolved
    • Major
    • Resolution: Fixed
    • 2.0.0
    • 2.0.0
    • regionserver
    • None
    • Incompatible change, Reviewed
    • Hide
      In 1.x branches, Admin.mergeRegions calls MASTER via dispatchMergingRegions RPC; when executing dispatchMergingRegions RPC, MASTER calls RS via MergeRegions to complete the merge in RS-side.

      With HBASE-16119, the merge logic moves to master-side. This JIRA cleans up unused RPCs (dispatchMergingRegions and MergeRegions) , removes dangerous tools such as Merge and HMerge, and deletes unused RegionServer-side merge region logic in 2.0 release.
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      In 1.x branches, Admin.mergeRegions calls MASTER via dispatchMergingRegions RPC; when executing dispatchMergingRegions RPC, MASTER calls RS via MergeRegions to complete the merge in RS-side. With HBASE-16119 , the merge logic moves to master-side. This JIRA cleans up unused RPCs (dispatchMergingRegions and MergeRegions) , removes dangerous tools such as Merge and HMerge, and deletes unused RegionServer-side merge region logic in 2.0 release.

    Description

      HBASE-16119 moves the merge region to the master-side. There is no need to keep region_server-side merge region code to remove logic duplication.

      util.Merge and HMerge tools depends on RS-side merge region logic. However, now we can merge regions using shell command. It is dangerous to do offline merge. For 2.0, it is a good time to remove those out-of-date tools.

      Attachments

        1. HBASE-17470.v1-master.patch
          671 kB
          Stephen Yuan Jiang
        2. HBASE-17470.v2-master.patch
          671 kB
          Stephen Yuan Jiang
        3. HBASE-17470.v3-master.patch
          772 kB
          Stephen Yuan Jiang

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              syuanjiang Stephen Yuan Jiang
              syuanjiang Stephen Yuan Jiang
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                Created:
                Updated:
                Resolved: