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  1. Hive
  2. HIVE-16669

Fine tune Compaction to take advantage of Acid 2.0

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Details

    • Bug
    • Status: Open
    • Critical
    • Resolution: Unresolved
    • 3.1.3
    • None
    • Transactions
    • None

    Description

      • There is little point using 2.0 vectorized reader since there is no operator pipeline in compaction
      • If minor compaction just concats delete_delta files together, then the 2 stage compaction should always ensure that we have a limited number of Orc readers to do the merging and current OrcRawRecordMerger should be fine
      • ...

      Attachments

        1. HIVE-16669.wip.patch
          4 kB
          Eugene Koifman

        Issue Links

          is related to

          New Feature - A new feature of the product, which has yet to be developed. HIVE-14035 Enable predicate pushdown to delta files created by ACID Transactions

          • Major - Major loss of function.
          • Resolved
          relates to

          Bug - A problem which impairs or prevents the functions of the product. HIVE-9995 ACID compaction tries to compact a single file

          • Major - Major loss of function.
          • Closed

          New Feature - A new feature of the product, which has yet to be developed. HIVE-17089 make acid 2.0 the default

          • Major - Major loss of function.
          • Closed

          Activity

            People

              Unassigned Unassigned
              ekoifman Eugene Koifman
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              Dates

                Created:
                Updated: