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https://issues.apache.org/jira/browse/MAPREDUCE-2537?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13040227#comment-13040227
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Robert Joseph Evans commented on MAPREDUCE-2537:
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OK I understand now. The original description of the issue by the person who
found it was very vague.
The issue is that yarn-$YARN_IDENT_STRING-$command-$HOSTNAME.out is where
stdout of the command is placed, and that even though yarn.log.dir,
yarn.log.file, and yarn.root.logger system properties are being set they are
not being used by the log4j configuration. The log4j configuration defaults to
CONSOLE which outputs the logs to stdout which in turn goes to
yarn-$YARN_IDENT_STRING-$command-$HOSTNAME.out.
The fix is to either update the log4j conf to use the yarn variants of these
variables, or to set the hadoop equivalents of these variables instead. I
assume from your comment that we need to switch them over to use the hadoop
variants. Is this correct?
> MR-279: The RM writes its log to yarn-mapred-resourcemanager-<RM_Host>.out
> --------------------------------------------------------------------------
>
> Key: MAPREDUCE-2537
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-2537
> Project: Hadoop Map/Reduce
> Issue Type: Bug
> Components: mrv2
> Reporter: Robert Joseph Evans
> Assignee: Robert Joseph Evans
> Priority: Minor
> Attachments: MR-2537-v1.patch
>
>
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