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  1. Hive
  2. HIVE-18513 Query results caching
  3. HIVE-19154

Poll notification events to invalidate the results cache

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Details

    • Sub-task
    • Status: Closed
    • Major
    • Resolution: Fixed
    • None
    • 3.0.0
    • None
    • None

    Description

      Related to the work for HIVE-18609. HIVE-18609 will only invalidate entries in the cache if that query looked up again, which could potentially leave a lot of undetected invalid entries in the cache taking up space which could cause other entries to be evicted. To remove these entries in a more timely fashion, have a background thread to periodically check the notification events for updates to the tables used in the results cache.

      Attachments

        1. HIVE-19154.1.patch
          54 kB
          Jason Dere
        2. HIVE-19154.2.patch
          56 kB
          Jason Dere
        3. HIVE-19154.3.patch
          56 kB
          Jason Dere

        Issue Links

          is related to

          Sub-task - The sub-task of the issue HIVE-18609 Results cache invalidation based on ACID table updates

          • Major - Major loss of function.
          • Closed

          Bug - A problem which impairs or prevents the functions of the product. HIVE-28551 Stale results when executing queries over recreated transactional tables

          • Major - Major loss of function.
          • Open
          links to

          Web Link https://reviews.apache.org/r/66533/

          Activity

            People

              jdere Jason Dere
              jdere Jason Dere
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              Dates

                Created:
                Updated:
                Resolved: