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https://issues.apache.org/jira/browse/SPARK-25973?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16681054#comment-16681054
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Apache Spark commented on SPARK-25973:
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User 'Willymontaz' has created a pull request for this issue:
https://github.com/apache/spark/pull/22982
> Spark History Main page performance improvement
> -----------------------------------------------
>
> Key: SPARK-25973
> URL: https://issues.apache.org/jira/browse/SPARK-25973
> Project: Spark
> Issue Type: Improvement
> Components: Web UI
> Affects Versions: 2.3.2
> Reporter: William Montaz
> Priority: Minor
> Attachments: fix.patch
>
>
> HistoryPage.scala counts applications (with a predicate depending on if it is
> displaying incomplete or complete applications) to check if it must display
> the dataTable.
> Since it only checks if allAppsSize > 0, we could use exists method on the
> iterator. This way we stop iterating at the first occurence found.
>
>
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