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https://issues.apache.org/jira/browse/YARN-7747?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17729468#comment-17729468
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Gera Shegalov commented on YARN-7747:
-------------------------------------
Sorry I dropped the ball with this JIRA. I have no bandwidth to work on it. I
unassigned it from myself if someone can pick it up.
> YARN UI is broken in the minicluster
> -------------------------------------
>
> Key: YARN-7747
> URL: https://issues.apache.org/jira/browse/YARN-7747
> Project: Hadoop YARN
> Issue Type: Bug
> Affects Versions: 3.0.0
> Reporter: Gera Shegalov
> Priority: Major
> Attachments: YARN-7747.001.patch, YARN-7747.002.patch
>
>
> YARN web apps use non-injected instances of GuiceFilter, i.e. instances
> created by Jetty as opposed by Guice itself. This triggers the [call
> path|https://github.com/google/guice/blob/master/extensions/servlet/src/com/google/inject/servlet/GuiceFilter.java#L251]
> where the static field {{pipeline}} is used instead of the instance field
> {{injectedPipeline}}. However, besides GuiceFilter instances created by
> Jetty, each Guice module generates them as well. On the injection call path
> this static variable is updated by each instance. Thus if there are multiple
> modules as it happens to be the case in the minicluster the one loaded last
> ends up defining the filter pipeline for all Jetty instances. In the
> minicluster case this is the nodemanager UI
>
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