[
https://issues.apache.org/jira/browse/MAPREDUCE-5486?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Rohith Sharma K S updated MAPREDUCE-5486:
-----------------------------------------
Attachment: MAPREDUCE-5486.patch
Uploading a patch for closing reader in case of IOException for rendering
aggregated logs.
> 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
> 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
--
This message is automatically generated by JIRA.
If you think it was sent incorrectly, please contact your JIRA administrators
For more information on JIRA, see: http://www.atlassian.com/software/jira
