[jira] [Commented] (YARN-476) ProcfsBasedProcessTree info message confuses users

["Sandy Ryza (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/YARN-476?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13630759#comment-13630759 ] 

Sandy Ryza commented on YARN-476:
---------------------------------

Attached patch that removes the log statement entirely.
                
> ProcfsBasedProcessTree info message confuses users
> --------------------------------------------------
>
>                 Key: YARN-476
>                 URL: https://issues.apache.org/jira/browse/YARN-476
>             Project: Hadoop YARN
>          Issue Type: Bug
>    Affects Versions: 0.23.6
>            Reporter: Jason Lowe
>         Attachments: YARN-476.patch
>
>
> ProcfsBasedProcessTree has a habit of emitting not-so-helpful messages such as the following:
> {noformat}
> 2013-03-13 12:41:51,957 INFO [communication thread] org.apache.hadoop.yarn.util.ProcfsBasedProcessTree: The process 28747 may have finished in the interim.
> 2013-03-13 12:41:51,958 INFO [communication thread] org.apache.hadoop.yarn.util.ProcfsBasedProcessTree: The process 28978 may have finished in the interim.
> 2013-03-13 12:41:51,958 INFO [communication thread] org.apache.hadoop.yarn.util.ProcfsBasedProcessTree: The process 28979 may have finished in the interim.
> {noformat}
> As described in MAPREDUCE-4570, this is something that naturally occurs in the process of monitoring processes via procfs.  It's uninteresting at best and can confuse users who think it's a reason their job isn't running as expected when it appears in their logs.
> We should either make this DEBUG or remove it entirely.

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