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https://issues.apache.org/jira/browse/SPARK-24209?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16467377#comment-16467377
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Apache Spark commented on SPARK-24209:
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User 'mgaido91' has created a pull request for this issue:
https://github.com/apache/spark/pull/21268

> 0 configuration Knox gateway support in SHS
> -------------------------------------------
>
>                 Key: SPARK-24209
>                 URL: https://issues.apache.org/jira/browse/SPARK-24209
>             Project: Spark
>          Issue Type: Improvement
>          Components: Web UI
>    Affects Versions: 2.4.0
>            Reporter: Marco Gaido
>            Priority: Minor
>              Labels: usability
>
> SHS supports Knox gateway by setting {{spark.ui.proxyBase}} to the proper 
> value. The main problem with this approach is that when 
> {{spark.ui.proxyBase}} is set, SHS is not accessible anymore through direct 
> access.
> Since Knox provides in the header {{X-Forwarded-Context}} the base URL to use 
> (there is a patch available in KNOX-1295), we can leverage it in order to 
> dynamically retrieve the right proxy base, instead of relying on a fixed 
> config. In this way, both access via Knox proxy and via direct URL can work 
> properly.



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