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Posted to issues@impala.apache.org by "Tim Armstrong (Jira)" <ji...@apache.org> on 2019/12/16 21:49:00 UTC

[jira] [Created] (IMPALA-9255) Take plan dependencies into account for resource consumption

Tim Armstrong created IMPALA-9255:
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             Summary: Take plan dependencies into account for resource consumption
                 Key: IMPALA-9255
                 URL: https://issues.apache.org/jira/browse/IMPALA-9255
             Project: IMPALA
          Issue Type: Improvement
          Components: Frontend
            Reporter: Tim Armstrong


In Planner.computeResourceReqs(), we assume that all fragment's peak resource consumption occurs at the same time. In actually, with the separate join build, there are dependencies between fragments and we could take those into account to reduce the estimated resource requirements.





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