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  1. Hive
  2. HIVE-15920

Implement a blocking version of a command to compact

    Details

    • Type: Improvement
    • Status: Resolved
    • Priority: Major
    • Resolution: Fixed
    • Affects Version/s: None
    • Fix Version/s: 2.3.0
    • Component/s: Transactions
    • Labels:
    • Target Version/s:

      Description

      currently

      alter table AcidTable compact 'major'
      

      is supported which enqueues a msg to compact.

      Would be nice for testing and script building to support

       
      alter table AcidTable compact 'major' blocking
      

      perhaps another variation is to block until either compaction is done or until cleaning is finished.

      DDLTask.compact() gets a request id back so it can then just block and wait for it using some new API

      may also be useful to let users compact all partitions but only if a separate queue has been set up for compaction jobs.
      The later is because with a 1M partition table, this may create very many jobs and saturate the cluster.
      This probably requires HIVE-12376 to make sure the compaction queue does the throttling, not the number of worker threads

        Attachments

        1. HIVE-15920.01.patch
          12 kB
          Eugene Koifman
        2. HIVE-15920.02.patch
          12 kB
          Eugene Koifman

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              • Assignee:
                ekoifman Eugene Koifman
                Reporter:
                ekoifman Eugene Koifman
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                • Created:
                  Updated:
                  Resolved: