Aman Sinha created IMPALA-10395:
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Summary: Evaluate and improve broadcast vs partition costing
formula
Key: IMPALA-10395
URL: https://issues.apache.org/jira/browse/IMPALA-10395
Project: IMPALA
Issue Type: Bug
Components: Frontend
Affects Versions: Impala 3.4.0
Reporter: Aman Sinha
Assignee: Aman Sinha
IMPALA-10287 adds tuning knobs for incorporating the join operator's degree of
parallelism (dop) and broadcast-to-partition factor in the costing of the build
side of a join when comparing broadcast vs partition distribution.
This JIRA is a follow-on to do a performance evaluation by varying the dop
and/or the broadcast-to-partition factor and determine what a reasonable
correlation function should be.
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