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Posted to issues@spark.apache.org by "Josh Rosen (JIRA)" <ji...@apache.org> on 2016/11/03 19:09:58 UTC

[jira] [Created] (SPARK-18256) Improve performance of event log replay in HistoryServer based on profiler results

Josh Rosen created SPARK-18256:
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             Summary: 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: Bug
            Reporter: Josh Rosen
            Assignee: Josh Rosen


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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