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