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From "Rohith Sharma K S (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (YARN-1145) Potential file handle leak in aggregated logs web ui
Date Thu, 05 Sep 2013 03:36:52 GMT

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

Rohith Sharma K S updated YARN-1145:
------------------------------------

    Attachment: YARN-1145.patch

Thank you Vinod Kumar Vavilapalli and Jason Lowe for reviewing patch :-)

I have addressed Vinode comments and attached updated patch. Please review updated patch.
                
> Potential file handle leak in aggregated logs 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, 0.23.9, 2.1.1-beta
>            Reporter: Rohith Sharma K S
>            Assignee: Rohith Sharma K S
>         Attachments: MAPREDUCE-5486.patch, YARN-1145.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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