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https://issues.apache.org/jira/browse/HADOOP-9593?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13665852#comment-13665852
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Arpit Agarwal commented on HADOOP-9593:
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HADOOP-8562 has been merged into branch-2.
> stack trace printed at ERROR for all yarn clients without hadoop.home set
> -------------------------------------------------------------------------
>
> Key: HADOOP-9593
> URL: https://issues.apache.org/jira/browse/HADOOP-9593
> Project: Hadoop Common
> Issue Type: Bug
> Components: util
> Affects Versions: 3.0.0
> Reporter: Steve Loughran
> Attachments: HADOOP-9593-001.patch, HADOOP-9593-002.patch
>
>
> This is the problem of HADOOP-9482 now showing up in a different application
> -one whose log4j settings haven't turned off all Shell logging.
> Unless you do that, all yarn clients will have a stack trace at error in
> their logs, which is generating false alarms and is utterly pointless. Why
> does this merit a stack trace? Why log it at error? It's not an error for a
> client app to not have these values set as long as they have the relevant
> JARs on their classpath. And if they don't, they'll get some classpath error
> instead
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