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https://issues.apache.org/jira/browse/SPARK-20242?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15958872#comment-15958872
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Apache Spark commented on SPARK-20242:
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User 'barnardb' has created a pull request for this issue:
https://github.com/apache/spark/pull/17551
> Delay stop of web UI
> --------------------
>
> Key: SPARK-20242
> URL: https://issues.apache.org/jira/browse/SPARK-20242
> Project: Spark
> Issue Type: New Feature
> Components: Web UI
> Affects Versions: 2.1.0
> Reporter: Ben Barnard
>
> When debugging Spark applications or deployments, it is often useful to
> inspect the Web UI of the driver application. Especially when the application
> is running remotely and facilities such as the history server aren't
> available, it can be limiting and frustrating that the UI stops when the
> application finishes. Developers sometimes add sleep statements to the end of
> their programs to allow to this, but this requires rebuilding an application
> to run it again with a delay.
> It is useful to have a configuration property, such as spark.ui.stopDelay,
> that can be use with arbitrary applications to prevent the UI from stopping
> immediately.
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