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  1. IMPALA
  2. IMPALA-12456

Apply optimization in IMPALA-7320 during event processing

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Details

    • Improvement
    • Status: Open
    • Major
    • Resolution: Unresolved
    • None
    • None
    • Catalog
    • None
    • ghx-label-1

    Description

      I saw some callstacks where table loading triggered by alter table events dominated most threads. It turned out that the optimization in IMPALA-7320 is not applied there and a file listing is initiated for each partition, even if a single recursive listing could read all data.

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          is caused by

          Improvement - An improvement or enhancement to an existing feature or task. IMPALA-12472 Skip permission check when refreshing in event processor

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

          Improvement - An improvement or enhancement to an existing feature or task. IMPALA-7320 Loading HDFS tables calls getFileStatus on each partition serially

          • Major - Major loss of function.
          • Resolved

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              Unassigned Unassigned
              csringhofer Csaba Ringhofer
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              Dates

                Created:
                Updated: