Uploaded image for project: 'Hive'
  1. Hive
  2. HIVE-15988

LLAP: cache ORC ACID delete deltas

    XMLWordPrintableJSON

Details

    • Improvement
    • Status: Resolved
    • Major
    • Resolution: Duplicate
    • None
    • None
    • llap, Transactions
    • None

    Description

      HIVE-12631 implemented ORC ACID table support in LLAP. If we cache ACID delete delta in LLAP, it will be faster.

      The cache is currently low-level (CB-level in ORC), so we could just use it to read bases and deltas (deltas should be cached with higher priority) and merge as usual. We could also cache merged representation in future.

      Attachments

        1. HIVE-15988.1.patch
          105 kB
          Teddy Choi

        Issue Links

          duplicates

          New Feature - A new feature of the product, which has yet to be developed. HIVE-24337 Cache delete delta files in LLAP cache

          • Major - Major loss of function.
          • Closed
          is related to

          Bug - A problem which impairs or prevents the functions of the product. HIVE-12631 LLAP IO: support ORC ACID tables

          • Major - Major loss of function.
          • Closed
          requires

          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
          links to

          Web Link Review Board

          Activity

            People

              teddy.choi Teddy Choi
              teddy.choi Teddy Choi
              Votes:
              0 Vote for this issue
              Watchers:
              5 Start watching this issue

              Dates

                Created:
                Updated:
                Resolved: