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https://issues.apache.org/jira/browse/DRILL-4911?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Jinfeng Ni updated DRILL-4911:
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Priority: Minor (was: Major)
> SimpleParallelizer should avoid plan serialization for logging purpose when
> debug logging is not enabled.
> ---------------------------------------------------------------------------------------------------------
>
> Key: DRILL-4911
> URL: https://issues.apache.org/jira/browse/DRILL-4911
> Project: Apache Drill
> Issue Type: Bug
> Components: Query Planning & Optimization
> Reporter: Jinfeng Ni
> Priority: Minor
>
> SimpleParallelizer and subclass has code to put serialized plan in debug log.
> However, in case when the physical plan fragment is very large (table is huge
> with large # of partitions, files, etc), the overhead of serialization is not
> negligible. The code seems to always do serialization, regardless whether the
> debug flag is turned on.
> To reduce the overhead, SimpleParallelizer and subclass should only do plan
> serialization for logging purpose when debug logging is turned on.
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