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https://issues.apache.org/jira/browse/YARN-3344?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Junping Du updated YARN-3344:
-----------------------------
    Target Version/s:   (was: 2.6.0)

> procfs stat file is not in the expected format warning
> ------------------------------------------------------
>
>                 Key: YARN-3344
>                 URL: https://issues.apache.org/jira/browse/YARN-3344
>             Project: Hadoop YARN
>          Issue Type: Bug
>    Affects Versions: 2.6.0
>            Reporter: Jon Bringhurst
>              Labels: BB2015-05-RFC
>         Attachments: YARN-3344-branch-trunk.001.patch, 
> YARN-3344-branch-trunk.002.patch, YARN-3344-branch-trunk.003.patch
>
>
> Although this doesn't appear to be causing any functional issues, it is 
> spamming our log files quite a bit. :)
> It appears that the regex in ProcfsBasedProcessTree doesn't work for all 
> /proc/<pid>/stat files.
> Here's the error I'm seeing:
> {noformat}
>     "source_host": "asdf",
>     "method": "constructProcessInfo",
>     "level": "WARN",
>     "message": "Unexpected: procfs stat file is not in the expected format 
> for process with pid 6953"
>     "file": "ProcfsBasedProcessTree.java",
>     "line_number": "514",
>     "class": "org.apache.hadoop.yarn.util.ProcfsBasedProcessTree",
> {noformat}
> And here's the basic info on process with pid 6953:
> {noformat}
> [asdf ~]$ cat /proc/6953/stat
> 6953 (python2.6 /expo) S 1871 1871 1871 0 -1 4202496 9364 1080 0 0 25 3 0 0 
> 20 0 1 0 144918696 205295616 5856 18446744073709551615 1 1 0 0 0 0 0 16781312 
> 2 18446744073709551615 0 0 17 13 0 0 0 0 0
> [asdf ~]$ ps aux|grep 6953
> root      6953  0.0  0.0 200484 23424 ?        S    21:44   0:00 python2.6 
> /export/apps/salt/minion-scripts/module-sync.py
> jbringhu 13481  0.0  0.0 105312   872 pts/0    S+   22:13   0:00 grep -i 6953
> [asdf ~]$ 
> {noformat}
> This is using 2.6.32-431.11.2.el6.x86_64 in RHEL 6.5.



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