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From "Carlos Fuertes (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (SPARK-2017) web ui stage page becomes unresponsive when the number of tasks is large
Date Thu, 31 Jul 2014 22:33:39 GMT

    [ https://issues.apache.org/jira/browse/SPARK-2017?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14081605#comment-14081605
] 

Carlos Fuertes commented on SPARK-2017:
---------------------------------------

I did not realize that the tasks all have their own index already so implementing the pagination
on top of it should be simple. I'll give it a try.

> web ui stage page becomes unresponsive when the number of tasks is large
> ------------------------------------------------------------------------
>
>                 Key: SPARK-2017
>                 URL: https://issues.apache.org/jira/browse/SPARK-2017
>             Project: Spark
>          Issue Type: Sub-task
>          Components: Web UI
>            Reporter: Reynold Xin
>              Labels: starter
>
> {code}
> sc.parallelize(1 to 1000000, 1000000).count()
> {code}
> The above code creates one million tasks to be executed. The stage detail web ui page
takes forever to load (if it ever completes).
> There are again a few different alternatives:
> 0. Limit the number of tasks we show.
> 1. Pagination
> 2. By default only show the aggregate metrics and failed tasks, and hide the successful
ones.



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