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https://issues.apache.org/jira/browse/SPARK-15703?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15369416#comment-15369416
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fengchaoge commented on SPARK-15703:
------------------------------------

Thomas Graves, in class AsynchronousListenerBus, the capacity of Queue 
EVENT_QUEUE_CAPACITY is fixed,when high concurrence,this value need to be 
changed. maybe 20000 or higher.


> Spark UI doesn't show all tasks as completed when it should
> -----------------------------------------------------------
>
>                 Key: SPARK-15703
>                 URL: https://issues.apache.org/jira/browse/SPARK-15703
>             Project: Spark
>          Issue Type: Bug
>          Components: Web UI
>    Affects Versions: 2.0.0
>            Reporter: Thomas Graves
>            Priority: Critical
>         Attachments: Screen Shot 2016-06-01 at 11.21.32 AM.png, Screen Shot 
> 2016-06-01 at 11.23.48 AM.png
>
>
> The Spark UI doesn't seem to be showing all the tasks and metrics.
> I ran a job with 100000 tasks but Detail stage page says it completed 93029:
> Summary Metrics for 93029 Completed Tasks
> The Stages for all jobs pages list that only 89519/100000 tasks finished but 
> its completed.  The metrics for shuffled write and input are also incorrect.
> I will attach screen shots.
> I checked the logs and it does show that all the tasks actually finished.
> 16/06/01 16:15:42 INFO TaskSetManager: Finished task 59880.0 in stage 2.0 
> (TID 54038) in 265309 ms on 10.213.45.51 (100000/100000)
> 16/06/01 16:15:42 INFO YarnClusterScheduler: Removed TaskSet 2.0, whose tasks 
> have all completed, from pool



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