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From "Hadoop QA (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-13901) Error while calling watcher on creating and deleting an HBase table
Date Mon, 15 Jun 2015 15:03:02 GMT

    [ https://issues.apache.org/jira/browse/HBASE-13901?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14586153#comment-14586153

Hadoop QA commented on HBASE-13901:

{color:red}-1 overall{color}.  Here are the results of testing the latest attachment 
  against master branch at commit 714668a40dff6d7aa9207a0846d6f8ed800276ee.
  ATTACHMENT ID: 12739599

    {color:green}+1 @author{color}.  The patch does not contain any @author tags.

    {color:red}-1 tests included{color}.  The patch doesn't appear to include any new or modified
                        Please justify why no new tests are needed for this patch.
                        Also please list what manual steps were performed to verify this patch.

    {color:green}+1 hadoop versions{color}. The patch compiles with all supported hadoop versions
(2.4.1 2.5.2 2.6.0)

    {color:green}+1 javac{color}.  The applied patch does not increase the total number of
javac compiler warnings.

    {color:green}+1 protoc{color}.  The applied patch does not increase the total number of
protoc compiler warnings.

    {color:green}+1 javadoc{color}.  The javadoc tool did not generate any warning messages.

    {color:green}+1 checkstyle{color}.  The applied patch does not increase the total number
of checkstyle errors

    {color:green}+1 findbugs{color}.  The patch does not introduce any  new Findbugs (version
2.0.3) warnings.

    {color:green}+1 release audit{color}.  The applied patch does not increase the total number
of release audit warnings.

    {color:green}+1 lineLengths{color}.  The patch does not introduce lines longer than 100

  {color:green}+1 site{color}.  The mvn site goal succeeds with this patch.

     {color:red}-1 core tests{color}.  The patch failed these unit tests:

Test results: https://builds.apache.org/job/PreCommit-HBASE-Build/14413//testReport/
Release Findbugs (version 2.0.3) 	warnings: https://builds.apache.org/job/PreCommit-HBASE-Build/14413//artifact/patchprocess/newFindbugsWarnings.html
Checkstyle Errors: https://builds.apache.org/job/PreCommit-HBASE-Build/14413//artifact/patchprocess/checkstyle-aggregate.html

  Console output: https://builds.apache.org/job/PreCommit-HBASE-Build/14413//console

This message is automatically generated.

> Error while calling watcher on creating and deleting an HBase table
> -------------------------------------------------------------------
>                 Key: HBASE-13901
>                 URL: https://issues.apache.org/jira/browse/HBASE-13901
>             Project: HBase
>          Issue Type: Bug
>            Reporter: neha
>            Assignee: Ashish Singhi
>            Priority: Minor
>             Fix For: 2.0.0, 0.98.14, 1.0.2, 1.2.0, 1.1.1
>         Attachments: HBASE-13901.patch
> [Scenario for Reproducing ] :
> 1. Create and delete 10 different HBase tables concurrently (10 threads creating, disabling
and deleting their own tables)
> 2. Check the HBase Master logs( Null Pointer Exceptions observed caused by data race)
> {noformat}
> ERROR [main-EventThread] zookeeper.ClientCnxn: Error while calling watcher 
> java.lang.NullPointerException
>  at org.apache.hadoop.hbase.zookeeper.ZKUtil$NodeAndData.isEmpty(ZKUtil.java:667)
>  at org.apache.hadoop.hbase.security.access.ZKPermissionWatcher.refreshNodes(ZKPermissionWatcher.java:152)
>  at org.apache.hadoop.hbase.security.access.ZKPermissionWatcher.nodeChildrenChanged(ZKPermissionWatcher.java:142)
>  at org.apache.hadoop.hbase.zookeeper.ZooKeeperWatcher.process(ZooKeeperWatcher.java:439)
>  at org.apache.zookeeper.ClientCnxn$EventThread.processEvent(ClientCnxn.java:543)
>  at org.apache.zookeeper.ClientCnxn$EventThread.run(ClientCnxn.java:518)
> 2015-06-05 20:32:04,553 INFO  [B.defaultRpcServer.handler=24,queue=4,port=16000] client.ConnectionManager$HConnectionImplementation:
Closing zookeeper sessionid=0x200541f1fd400c0
> 2015-06-05 20:32:04,561 INFO  [B.defaultRpcServer.handler=24,queue=4,port=16000] zookeeper.ZooKeeper:
Session: 0x200541f1fd400c0 closed
> 2015-06-05 20:32:04,561 INFO  [B.defaultRpcServer.handler=24,queue=4,port=16000-EventThread]
zookeeper.ClientCnxn: EventThread shut down
> 2015-06-05 20:32:04,631 INFO  [B.defaultRpcServer.handler=7,queue=2,port=16000] client.ConnectionManager$HConnectionImplementation:
Closing zookeeper sessionid=0x200541f1fd400c2
> 2015-06-05 20:32:04,644 INFO  [B.defaultRpcServer.handler=7,queue=2,port=16000] zookeeper.ZooKeeper:
Session: 0x200541f1fd400c2 closed
> 2015-06-05 20:32:04,644 INFO  [B.defaultRpcServer.handler=7,queue=2,port=16000-EventThread]
zookeeper.ClientCnxn: EventThread shut down 
> {noformat}

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