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From "Hadoop QA (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-9796) npe in RegionServerCallable
Date Fri, 18 Oct 2013 00:06:43 GMT

    [ https://issues.apache.org/jira/browse/HBASE-9796?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13798639#comment-13798639
] 

Hadoop QA commented on HBASE-9796:
----------------------------------

{color:red}-1 overall{color}.  Here are the results of testing the latest attachment 
  http://issues.apache.org/jira/secure/attachment/12609045/9796.txt
  against trunk revision .

    {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
tests.
                        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 hadoop1.0{color}.  The patch compiles against the hadoop 1.0 profile.

    {color:green}+1 hadoop2.0{color}.  The patch compiles against the hadoop 2.0 profile.

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

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

    {color:green}+1 findbugs{color}.  The patch does not introduce any new Findbugs (version
1.3.9) 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:red}-1 site{color}.  The patch appears to cause mvn site goal to fail.

    {color:green}+1 core tests{color}.  The patch passed unit tests in .

Test results: https://builds.apache.org/job/PreCommit-HBASE-Build/7583//testReport/
Findbugs warnings: https://builds.apache.org/job/PreCommit-HBASE-Build/7583//artifact/trunk/patchprocess/newPatchFindbugsWarningshbase-prefix-tree.html
Findbugs warnings: https://builds.apache.org/job/PreCommit-HBASE-Build/7583//artifact/trunk/patchprocess/newPatchFindbugsWarningshbase-client.html
Findbugs warnings: https://builds.apache.org/job/PreCommit-HBASE-Build/7583//artifact/trunk/patchprocess/newPatchFindbugsWarningshbase-common.html
Findbugs warnings: https://builds.apache.org/job/PreCommit-HBASE-Build/7583//artifact/trunk/patchprocess/newPatchFindbugsWarningshbase-protocol.html
Findbugs warnings: https://builds.apache.org/job/PreCommit-HBASE-Build/7583//artifact/trunk/patchprocess/newPatchFindbugsWarningshbase-server.html
Findbugs warnings: https://builds.apache.org/job/PreCommit-HBASE-Build/7583//artifact/trunk/patchprocess/newPatchFindbugsWarningshbase-hadoop1-compat.html
Findbugs warnings: https://builds.apache.org/job/PreCommit-HBASE-Build/7583//artifact/trunk/patchprocess/newPatchFindbugsWarningshbase-examples.html
Findbugs warnings: https://builds.apache.org/job/PreCommit-HBASE-Build/7583//artifact/trunk/patchprocess/newPatchFindbugsWarningshbase-thrift.html
Findbugs warnings: https://builds.apache.org/job/PreCommit-HBASE-Build/7583//artifact/trunk/patchprocess/newPatchFindbugsWarningshbase-hadoop-compat.html
Console output: https://builds.apache.org/job/PreCommit-HBASE-Build/7583//console

This message is automatically generated.

> npe in RegionServerCallable
> ---------------------------
>
>                 Key: HBASE-9796
>                 URL: https://issues.apache.org/jira/browse/HBASE-9796
>             Project: HBase
>          Issue Type: Bug
>    Affects Versions: 0.96.0
>            Reporter: stack
>            Assignee: stack
>             Fix For: 0.96.1
>
>         Attachments: 9796.txt
>
>
> Saw this running hbase-it suite on test cluster.  Its tricky.  Needs a little study.
 Connection or location became null in this code when we go to clear the caches:
> {code}
>     if (t instanceof SocketTimeoutException ||
>         t instanceof ConnectException ||
>         t instanceof RetriesExhaustedException ||
>         (location != null && getConnection().isDeadServer(location.getServerName())))
{
>       // if thrown these exceptions, we clear all the cache entries that
>       // map to that slow/dead server; otherwise, let cache miss and ask
>       // hbase:meta again to find the new location
>       getConnection().clearCaches(location.getServerName());
> {code}
> Here is exception seen:
> 2013-10-17 09:05:44,569 INFO  [Thread-9] actions.Action: Killed region server:a1811.halxg.cloudera.com,60020,1382025707403.
Reported num of rs:4
> 2013-10-17 09:05:44,569 INFO  [Thread-9] actions.Action: Sleeping for:2961
> Exception in thread "HBaseUpdaterThread_3" java.lang.NullPointerException
> 	at org.apache.hadoop.hbase.client.RegionServerCallable.throwable(RegionServerCallable.java:120)
> 	at org.apache.hadoop.hbase.client.RpcRetryingCaller.callWithRetries(RpcRetryingCaller.java:124)
> 	at org.apache.hadoop.hbase.client.HTable.get(HTable.java:755)
> 	at org.apache.hadoop.hbase.util.MultiThreadedUpdater$HBaseUpdaterThread.run(MultiThreadedUpdater.java:159)



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