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Posted to mapreduce-issues@hadoop.apache.org by "Rohith Sharma K S (JIRA)" <ji...@apache.org> on 2013/08/29 08:03:51 UTC
[jira] [Assigned] (MAPREDUCE-5486) Potential file handler leak in
JobHistoryServer web ui.
[ https://issues.apache.org/jira/browse/MAPREDUCE-5486?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Rohith Sharma K S reassigned MAPREDUCE-5486:
--------------------------------------------
Assignee: Rohith Sharma K S
> Potential file handler leak in JobHistoryServer web ui.
> -------------------------------------------------------
>
> Key: MAPREDUCE-5486
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-5486
> Project: Hadoop Map/Reduce
> Issue Type: Bug
> Components: jobhistoryserver
> Affects Versions: 2.0.5-alpha, 2.1.1-beta
> Reporter: Rohith Sharma K S
> Assignee: Rohith Sharma K S
>
> 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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