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Posted to issues@spark.apache.org by "Kay Ousterhout (JIRA)" <ji...@apache.org> on 2015/05/29 03:51:17 UTC

[jira] [Created] (SPARK-7932) Scheduler delay shown in event timeline is incorrect

Kay Ousterhout created SPARK-7932:
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             Summary: Scheduler delay shown in event timeline is incorrect
                 Key: SPARK-7932
                 URL: https://issues.apache.org/jira/browse/SPARK-7932
             Project: Spark
          Issue Type: Bug
          Components: Web UI
            Reporter: Kay Ousterhout
            Assignee: Kay Ousterhout
            Priority: Minor


In StagePage.scala, we round *down* to the nearest percent when computing the proportion of a task's time spend in each phase of execution.  Scheduler delay is computed by taking 100 - sum(all other proportions), which means that a few extra percent may go into the scheduler delay.  As a result, scheduler delay can appear larger in the visualization than it actually is.

cc [~shivaram]



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