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Posted to issues@impala.apache.org by "Riza Suminto (Jira)" <ji...@apache.org> on 2023/09/12 00:11:00 UTC

[jira] [Created] (IMPALA-12444) PROCESSING_COST_MIN_THREADS can get ignored by scan fragment.

Riza Suminto created IMPALA-12444:
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             Summary: PROCESSING_COST_MIN_THREADS can get ignored by scan fragment.
                 Key: IMPALA-12444
                 URL: https://issues.apache.org/jira/browse/IMPALA-12444
             Project: IMPALA
          Issue Type: Bug
          Components: Frontend
    Affects Versions: Impala 4.2.0
            Reporter: Riza Suminto
            Assignee: Riza Suminto


There is a bug in PlanFragment.java where scan fragment might not follow PROCESSING_COST_MIN_THREADS set by user even if total scan ranges allow to do so.

Frontend planner also need to sanity check such that PROCESSING_COST_MIN_THREADS <= MAX_FRAGMENT_INSTANCES_PER_NODE.



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