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https://issues.apache.org/jira/browse/HBASE-9393?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16039823#comment-16039823
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Hudson commented on HBASE-9393:
-------------------------------
FAILURE: Integrated in Jenkins build HBase-1.4 #762 (See
[https://builds.apache.org/job/HBase-1.4/762/])
HBASE-9393 Hbase does not closing a closed socket resulting in many (apurtell:
rev 356d4e9187fc6748169d3aaebe516fb2257d8835)
* (edit)
hbase-server/src/main/java/org/apache/hadoop/hbase/io/hfile/AbstractHFileReader.java
* (edit)
hbase-server/src/main/java/org/apache/hadoop/hbase/io/hfile/HFileBlock.java
* (edit)
hbase-server/src/main/java/org/apache/hadoop/hbase/io/hfile/HFileReaderV2.java
* (edit)
hbase-server/src/main/java/org/apache/hadoop/hbase/io/hfile/HFileScanner.java
* (edit)
hbase-server/src/main/java/org/apache/hadoop/hbase/io/HalfStoreFileReader.java
* (edit)
hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/StoreFileScanner.java
* (edit)
hbase-server/src/main/java/org/apache/hadoop/hbase/io/FSDataInputStreamWrapper.java
* (edit) hbase-server/src/main/java/org/apache/hadoop/hbase/io/hfile/HFile.java
> Hbase does not closing a closed socket resulting in many CLOSE_WAIT
> --------------------------------------------------------------------
>
> Key: HBASE-9393
> URL: https://issues.apache.org/jira/browse/HBASE-9393
> Project: HBase
> Issue Type: Bug
> Affects Versions: 0.94.2, 0.98.0, 1.0.1.1, 1.1.2
> Environment: Centos 6.4 - 7 regionservers/datanodes, 8 TB per node,
> 7279 regions
> Reporter: Avi Zrachya
> Assignee: Ashish Singhi
> Priority: Critical
> Fix For: 2.0.0, 1.4.0
>
> Attachments: HBASE-9393-branch-1.patch, HBASE-9393.patch,
> HBASE-9393.v10.patch, HBASE-9393.v11.patch, HBASE-9393.v12.patch,
> HBASE-9393.v13.patch, HBASE-9393.v14.patch, HBASE-9393.v15.patch,
> HBASE-9393.v15.patch, HBASE-9393.v16.patch, HBASE-9393.v16.patch,
> HBASE-9393.v17.patch, HBASE-9393.v18.patch, HBASE-9393.v1.patch,
> HBASE-9393.v2.patch, HBASE-9393.v3.patch, HBASE-9393.v4.patch,
> HBASE-9393.v5.patch, HBASE-9393.v5.patch, HBASE-9393.v5.patch,
> HBASE-9393.v6.patch, HBASE-9393.v6.patch, HBASE-9393.v6.patch,
> HBASE-9393.v7.patch, HBASE-9393.v8.patch, HBASE-9393.v9.patch
>
>
> HBase dose not close a dead connection with the datanode.
> This resulting in over 60K CLOSE_WAIT and at some point HBase can not connect
> to the datanode because too many mapped sockets from one host to another on
> the same port.
> The example below is with low CLOSE_WAIT count because we had to restart
> hbase to solve the porblem, later in time it will incease to 60-100K sockets
> on CLOSE_WAIT
> [root@hd2-region3 ~]# netstat -nap |grep CLOSE_WAIT |grep 21592 |wc -l
> 13156
> [root@hd2-region3 ~]# ps -ef |grep 21592
> root 17255 17219 0 12:26 pts/0 00:00:00 grep 21592
> hbase 21592 1 17 Aug29 ? 03:29:06
> /usr/java/jdk1.6.0_26/bin/java -XX:OnOutOfMemoryError=kill -9 %p -Xmx8000m
> -ea -XX:+UseConcMarkSweepGC -XX:+CMSIncrementalMode
> -Dhbase.log.dir=/var/log/hbase
> -Dhbase.log.file=hbase-hbase-regionserver-hd2-region3.swnet.corp.log ...
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