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From "Patrick Wendell (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (SPARK-2016) rdd in-memory storage UI becomes unresponsive when the number of RDD partitions is large
Date Mon, 04 Aug 2014 07:34:11 GMT

    [ https://issues.apache.org/jira/browse/SPARK-2016?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14084399#comment-14084399
] 

Patrick Wendell commented on SPARK-2016:
----------------------------------------

I think a major part of this was on the computation side as well - there were huge inefficiencies
on this page. They were fixed in SPARK-2316. It would be interesting to see whether the test
you give here is still unresponsive in that case (to dilineate whether this was a UI issue
or not).

> rdd in-memory storage UI becomes unresponsive when the number of RDD partitions is large
> ----------------------------------------------------------------------------------------
>
>                 Key: SPARK-2016
>                 URL: https://issues.apache.org/jira/browse/SPARK-2016
>             Project: Spark
>          Issue Type: Sub-task
>            Reporter: Reynold Xin
>              Labels: starter
>
> Try run
> {code}
> sc.parallelize(1 to 100, 1000000).cache().count()
> {code}
> And open the storage UI for this RDD. It takes forever to load the page.
> When the number of partitions is very large, I think there are a few alternatives:
> 0. Only show the top 1000.
> 1. Pagination
> 2. Instead of grouping by RDD blocks, group by executors



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