[jira] [Commented] (SPARK-31971) Add pagination support for all jobs timeline

["Apache Spark (Jira)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/SPARK-31971?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17133679#comment-17133679 ] 

Apache Spark commented on SPARK-31971:
--------------------------------------

User 'sarutak' has created a pull request for this issue:
https://github.com/apache/spark/pull/28803

> Add pagination support for all jobs timeline
> --------------------------------------------
>
>                 Key: SPARK-31971
>                 URL: https://issues.apache.org/jira/browse/SPARK-31971
>             Project: Spark
>          Issue Type: Improvement
>          Components: Web UI
>    Affects Versions: 3.0.1, 3.1.0
>            Reporter: Kousuke Saruta
>            Assignee: Kousuke Saruta
>            Priority: Major
>
> If there are lots of jobs, rendering performance of all jobs timeline can significantly goes down. This issue is reported in SPARK-31967.
>  For example, the following operation can take >40 sec.
> {code:java}
> (1 to 1000).foreach(_ => sc.parallelize(1 to 10).collect) {code}
> Although it's not the fundamental solution, pagination can mitigate the issue.



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