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From "Ahmed Radwan (JIRA)" <j...@apache.org>
Subject [jira] [Created] (MAPREDUCE-4570) ProcfsBasedProcessTree#constructProcessInfo() prints a warning if procfsDir/<pid>/stat is not found.
Date Tue, 21 Aug 2012 16:48:37 GMT
Ahmed Radwan created MAPREDUCE-4570:
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             Summary: ProcfsBasedProcessTree#constructProcessInfo() prints a warning if procfsDir/<pid>/stat
is not found.
                 Key: MAPREDUCE-4570
                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-4570
             Project: Hadoop Map/Reduce
          Issue Type: Bug
          Components: mrv2
            Reporter: Ahmed Radwan
            Assignee: Ahmed Radwan
            Priority: Minor


I think a warning is misleading in this case. What is happening here is that the list of all
processes in the system is found, and then later the procfsDir/<pid>/stat file for each
is opened. This warning is thrown when the process finishes before the stat file is opened,
and hence the file is no longer there. This could normally happen, and shouldn't signify a
waring. An info message is sufficient. I'll be uploading a patch momentarily.

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