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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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Krystal closed DRILL-4911.
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Per Jinfeng's previous comment, closing bug as fixed.
> 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
> Assignee: Jinfeng Ni
> Priority: Minor
> Fix For: 1.9.0
>
>
> SimpleParallelizer and subclass have 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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