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https://issues.apache.org/jira/browse/SPARK-18256?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15653501#comment-15653501
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Vinayak Joshi commented on SPARK-18256:
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Hi - this kind of compliments the log replay improvement in
https://issues.apache.org/jira/browse/SPARK-18256. SPARK-18256 got marked as
Fix Version 2.1. Curious, if there's a reason that this instead has been marked
as Fix Version: 2.2 and can not be 2.1 as well?
> Improve performance of event log replay in HistoryServer based on profiler
> results
> ----------------------------------------------------------------------------------
>
> Key: SPARK-18256
> URL: https://issues.apache.org/jira/browse/SPARK-18256
> Project: Spark
> Issue Type: Improvement
> Reporter: Josh Rosen
> Assignee: Josh Rosen
> Fix For: 2.2.0
>
>
> Profiling event log replay in the HistoryServer reveals Json4S control flow
> exceptions and `Utils.getFormattedClassName` calls as significant
> bottlenecks. Eliminating these halves the time to replay long event logs.
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