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From "Hudson (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-9393) Hbase does not closing a closed socket resulting in many CLOSE_WAIT
Date Tue, 20 Jun 2017 11:18:01 GMT

    [ https://issues.apache.org/jira/browse/HBASE-9393?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16055597#comment-16055597
] 

Hudson commented on HBASE-9393:
-------------------------------

SUCCESS: Integrated in Jenkins build HBase-1.3-JDK8 #197 (See [https://builds.apache.org/job/HBase-1.3-JDK8/197/])
HBASE-9393 Hbase does not closing a closed socket resulting in many (busbey: rev e3bda837947ad2d49fc59942e062a37124a754dc)
* (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/regionserver/StoreFileScanner.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/io/hfile/AbstractHFileReader.java
* (edit) hbase-server/src/main/java/org/apache/hadoop/hbase/io/hfile/HFile.java
* (edit) hbase-server/src/main/java/org/apache/hadoop/hbase/io/FSDataInputStreamWrapper.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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