Rohith Sharma K S created MAPREDUCE-5486:
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Summary: 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
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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