Ashutosh Chauhan created HIVE-20364:
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Summary: Update default for hive.map.aggr.hash.min.reduction
Key: HIVE-20364
URL: https://issues.apache.org/jira/browse/HIVE-20364
Project: Hive
Issue Type: Improvement
Components: Configuration
Reporter: Nita Dembla
Assignee: Ashutosh Chauhan
Default value is 0.5 Lets update it to 0.99
In average case its a trade-off between cpu vs network. Erring on side of CPU
is better since perf loss caused by network is usually larger.
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