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https://issues.apache.org/jira/browse/HIVE-1749?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Carl Steinbach updated HIVE-1749:
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Component/s: Query Processor
Summary: ExecMapper and ExecReducer: reduce function calls to
l4j.isInfoEnabled() (was: ExecMapper and ExecReducer reduce function calls to
l4j.isInfoEnabled())
> ExecMapper and ExecReducer: reduce function calls to l4j.isInfoEnabled()
> ------------------------------------------------------------------------
>
> Key: HIVE-1749
> URL: https://issues.apache.org/jira/browse/HIVE-1749
> Project: Hive
> Issue Type: Improvement
> Components: Query Processor
> Reporter: Siying Dong
> Assignee: Siying Dong
> Priority: Minor
> Fix For: 0.7.0
>
> Attachments: HIVE-1749.1.patch
>
>
> Calling l4j.isInfoEnabled() is more expensive than we thought. By eliminating
> this function call, we can save 1% - 3% CPU time, according to the profiliing.
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