[jira] [Commented] (SPARK-3287) When ResourceManager High Availability is enabled, ApplicationMaster webUI is not displayed.

["Benoy Antony (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/SPARK-3287?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14114612#comment-14114612 ] 

Benoy Antony commented on SPARK-3287:
-------------------------------------

I'll submit a git pull request.

> When ResourceManager High Availability is enabled, ApplicationMaster webUI is not displayed.
> --------------------------------------------------------------------------------------------
>
>                 Key: SPARK-3287
>                 URL: https://issues.apache.org/jira/browse/SPARK-3287
>             Project: Spark
>          Issue Type: Bug
>          Components: Spark Core, YARN
>    Affects Versions: 1.0.2
>            Reporter: Benoy Antony
>         Attachments: SPARK-3287.patch
>
>
> When ResourceManager High Availability is enabled, there will be multiple resource managers and each of them could act as a proxy.
> AmIpFilter is modified to accept multiple proxy hosts. But Spark ApplicationMaster fails to read the ResourceManager IPs properly from the configuration.
> So AmIpFilter is initialized with an empty set of proxy hosts. So any access to the ApplicationMaster WebUI will be redirected to port RM port on the local host. 



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