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From "Junping Du (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-7598) Document how to use classpath isolation for aux-services in YARN
Date Mon, 09 Apr 2018 08:01:00 GMT

    [ https://issues.apache.org/jira/browse/YARN-7598?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16430229#comment-16430229

Junping Du commented on YARN-7598:

Thanks [~xgong] for the updating the patch! 
The patch looks generally good to me, but have several comments:
bq. so users/admins don't have do anything for it to support NM restart.
"don't have do" => "don't have to do" or "don't need to do"

+	<property>
+		<name>yarn.nodemanager.aux-services.CustomAuxService.classpath</name>
+		<value>${local_dir_to_jar}/*</value>
+	</property>
+    <!--
+	<property>
+		<name>yarn.nodemanager.aux-services.CustomAuxService.remote-classpath</name>
+		<value>${remote-dir_to_jar}/CustomAuxService.jar</value>
+	</property>
+    -->
the example above looks a bit misleading, it should point to single jar or multiple jars no
matter local or remote classpath. Isn't it? If so, better to point to the same jar or jars.
Also, what will happen if specify local and remote classpath at the same time? Better to document

Other looks good to me.

> Document how to use classpath isolation for aux-services in YARN
> ----------------------------------------------------------------
>                 Key: YARN-7598
>                 URL: https://issues.apache.org/jira/browse/YARN-7598
>             Project: Hadoop YARN
>          Issue Type: Bug
>            Reporter: Xuan Gong
>            Assignee: Xuan Gong
>            Priority: Major
>         Attachments: YARN-7598.2.patch, YARN-7598.3.patch, YARN-7598.trunk.1.patch

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