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Posted to issues-all@impala.apache.org by "Tim Armstrong (Jira)" <ji...@apache.org> on 2020/04/01 20:27:00 UTC

[jira] [Created] (IMPALA-9591) Automatically cap pre-aggregation memory consumption to match

Tim Armstrong created IMPALA-9591:
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             Summary: Automatically cap pre-aggregation memory consumption to match
                 Key: IMPALA-9591
                 URL: https://issues.apache.org/jira/browse/IMPALA-9591
             Project: IMPALA
          Issue Type: Improvement
          Components: Frontend
            Reporter: Tim Armstrong


IMPALA-2945 tracks some issues with preagg estimates. One option to get estimates to match actual memory consumption is to cap actual memory consumption. IMPALA-9530 adds this mechanism controlled by a flag.



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