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https://issues.apache.org/jira/browse/YARN-4577?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Xuan Gong updated YARN-4577:
----------------------------
    Attachment: YARN-4577.3.rebase.patch

rebase the patch

> Enable aux services to have their own custom classpath/jar file
> ---------------------------------------------------------------
>
>                 Key: YARN-4577
>                 URL: https://issues.apache.org/jira/browse/YARN-4577
>             Project: Hadoop YARN
>          Issue Type: Improvement
>    Affects Versions: 2.8.0
>            Reporter: Xuan Gong
>            Assignee: Xuan Gong
>         Attachments: YARN-4577.1.patch, YARN-4577.2.patch, YARN-4577.3.patch, 
> YARN-4577.3.rebase.patch
>
>
> Right now, users have to add their jars to the NM classpath directly, thus 
> put them on the system classloader. But if multiple versions of the plugin 
> are present on the classpath, there is no control over which version actually 
> gets loaded. Or if there are any conflicts between the dependencies 
> introduced by the auxiliary service and the NM itself, they can break the NM, 
> the auxiliary service, or both.
> The solution could be: to instantiate aux services using a classloader that 
> is different from the system classloader.



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