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https://issues.apache.org/jira/browse/HBASE-9393?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15123199#comment-15123199
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Ashish Singhi commented on HBASE-9393:
--------------------------------------
{{TestFlushSnapshotFromClient}} failure is not related to patch. I have
manually ran 3 times locally and not able to reproduce it.
{noformat}
-------------------------------------------------------
T E S T S
-------------------------------------------------------
Running org.apache.hadoop.hbase.snapshot.TestFlushSnapshotFromClient
Tests run: 9, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 95.841 sec - in
org.apache.hadoop.hbase.snapshot.TestFlushSnapshot
FromClient
Results :
Tests run: 9, Failures: 0, Errors: 0, Skipped: 0
[INFO]
[INFO] --- maven-surefire-plugin:2.18.1:test (secondPartTestsExecution) @
hbase-server ---
[INFO] Tests are skipped.
[INFO] ------------------------------------------------------------------------
[INFO] BUILD SUCCESS
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 1:50.899s
[INFO] Finished at: Fri Jan 29 14:07:38 GMT+05:30 2016
[INFO] Final Memory: 36M/96M
[INFO] ------------------------------------------------------------------------
-------------------------------------------------------
T E S T S
-------------------------------------------------------
Running org.apache.hadoop.hbase.snapshot.TestFlushSnapshotFromClient
Tests run: 9, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 93.399 sec - in
org.apache.hadoop.hbase.snapshot.TestFlushSnapshot
FromClient
Results :
Tests run: 9, Failures: 0, Errors: 0, Skipped: 0
[INFO]
[INFO] --- maven-surefire-plugin:2.18.1:test (secondPartTestsExecution) @
hbase-server ---
[INFO] Tests are skipped.
[INFO] ------------------------------------------------------------------------
[INFO] BUILD SUCCESS
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 1:48.177s
[INFO] Finished at: Fri Jan 29 14:13:52 GMT+05:30 2016
[INFO] Final Memory: 35M/89M
[INFO] ------------------------------------------------------------------------
-------------------------------------------------------
T E S T S
-------------------------------------------------------
Running org.apache.hadoop.hbase.snapshot.TestFlushSnapshotFromClient
Tests run: 9, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 94.072 sec - in
org.apache.hadoop.hbase.snapshot.TestFlushSnapshot
FromClient
Results :
Tests run: 9, Failures: 0, Errors: 0, Skipped: 0
[INFO]
[INFO] --- maven-surefire-plugin:2.18.1:test (secondPartTestsExecution) @
hbase-server ---
[INFO] Tests are skipped.
[INFO] ------------------------------------------------------------------------
[INFO] BUILD SUCCESS
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 1:48.012s
[INFO] Finished at: Fri Jan 29 14:16:28 GMT+05:30 2016
[INFO] Final Memory: 36M/100M
[INFO] ------------------------------------------------------------------------
{noformat}
[[email protected]], is v6 patch ok to commit ?
Thanks.
> 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
> 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
>
> Attachments: HBASE-9393.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 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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