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From "Jason Lowe (JIRA)" <j...@apache.org>
Subject [jira] [Moved] (YARN-1145) Potential file handler leak in JobHistoryServer web ui.
Date Wed, 04 Sep 2013 16:28:52 GMT

     [ https://issues.apache.org/jira/browse/YARN-1145?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Jason Lowe moved MAPREDUCE-5486 to YARN-1145:
---------------------------------------------

          Component/s:     (was: jobhistoryserver)
             Assignee:     (was: Rohith Sharma K S)
     Target Version/s: 2.1.1-beta  (was: 2.1.1-beta)
    Affects Version/s:     (was: 2.1.1-beta)
                           (was: 2.0.5-alpha)
                       2.1.1-beta
                       2.0.5-alpha
                  Key: YARN-1145  (was: MAPREDUCE-5486)
              Project: Hadoop YARN  (was: Hadoop Map/Reduce)
    
> Potential file handler leak in JobHistoryServer web ui.
> -------------------------------------------------------
>
>                 Key: YARN-1145
>                 URL: https://issues.apache.org/jira/browse/YARN-1145
>             Project: Hadoop YARN
>          Issue Type: Bug
>    Affects Versions: 2.0.5-alpha, 2.1.1-beta
>            Reporter: Rohith Sharma K S
>         Attachments: MAPREDUCE-5486.patch
>
>
> Any problem in getting aggregated logs for rendering on web ui, then LogReader is not
closed. 
> Now, it reader is not closed which causing many connections in close_wait state.
> hadoopuser@hadoopuser:> jps
> *27909* JobHistoryServer
> DataNode port is 50010. When greped with DataNode port, many connections are in CLOSE_WAIT
from JHS.
> hadoopuser@hadoopuser:> netstat -tanlp |grep 50010
> tcp        0      0 10.18.40.48:50010       0.0.0.0:*               LISTEN      21453/java
         
> tcp        1      0 10.18.40.48:20596       10.18.40.48:50010       CLOSE_WAIT  *27909*/java
         
> tcp        1      0 10.18.40.48:19667       10.18.40.152:50010      CLOSE_WAIT  *27909*/java
         
> tcp        1      0 10.18.40.48:20593       10.18.40.48:50010       CLOSE_WAIT  *27909*/java
         
> tcp        1      0 10.18.40.48:12290       10.18.40.48:50010       CLOSE_WAIT  *27909*/java
         
> tcp        1      0 10.18.40.48:19662       10.18.40.152:50010      CLOSE_WAIT  *27909*/java
         

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