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https://issues.apache.org/jira/browse/YARN-7747?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16325432#comment-16325432
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ASF GitHub Bot commented on YARN-7747:
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GitHub user gerashegalov opened a pull request:
https://github.com/apache/hadoop/pull/326
YARN-7747 use injected GuiceFilter instances
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/gerashegalov/hadoop feature/yarn-7747
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/hadoop/pull/326.patch
To close this pull request, make a commit to your master/trunk branch
with (at least) the following in the commit message:
This closes #326
----
commit 9fb6d222985054f0b3755a74d1239403df80cea9
Author: Gera Shegalov <gera@...>
Date: 2018-01-14T03:15:47Z
YARN-7747 use injected GuiceFilter instances
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> 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
> Assignee: Gera Shegalov
>
> 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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