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https://issues.apache.org/jira/browse/HBASE-8790?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13691875#comment-13691875
]
Hadoop QA commented on HBASE-8790:
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{color:red}-1 overall{color}. Here are the results of testing the latest
attachment
http://issues.apache.org/jira/secure/attachment/12589381/HBase-8790.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:green}+1 site{color}. The mvn site goal succeeds with this patch.
{color:green}+1 core tests{color}. The patch passed unit tests in .
Test results:
https://builds.apache.org/job/PreCommit-HBASE-Build/6119//testReport/
Findbugs warnings:
https://builds.apache.org/job/PreCommit-HBASE-Build/6119//artifact/trunk/patchprocess/newPatchFindbugsWarningshbase-prefix-tree.html
Findbugs warnings:
https://builds.apache.org/job/PreCommit-HBASE-Build/6119//artifact/trunk/patchprocess/newPatchFindbugsWarningshbase-client.html
Findbugs warnings:
https://builds.apache.org/job/PreCommit-HBASE-Build/6119//artifact/trunk/patchprocess/newPatchFindbugsWarningshbase-common.html
Findbugs warnings:
https://builds.apache.org/job/PreCommit-HBASE-Build/6119//artifact/trunk/patchprocess/newPatchFindbugsWarningshbase-protocol.html
Findbugs warnings:
https://builds.apache.org/job/PreCommit-HBASE-Build/6119//artifact/trunk/patchprocess/newPatchFindbugsWarningshbase-server.html
Findbugs warnings:
https://builds.apache.org/job/PreCommit-HBASE-Build/6119//artifact/trunk/patchprocess/newPatchFindbugsWarningshbase-hadoop1-compat.html
Findbugs warnings:
https://builds.apache.org/job/PreCommit-HBASE-Build/6119//artifact/trunk/patchprocess/newPatchFindbugsWarningshbase-examples.html
Findbugs warnings:
https://builds.apache.org/job/PreCommit-HBASE-Build/6119//artifact/trunk/patchprocess/newPatchFindbugsWarningshbase-hadoop-compat.html
Console output:
https://builds.apache.org/job/PreCommit-HBASE-Build/6119//console
This message is automatically generated.
> NullPointerException thrown when stopping regionserver
> ------------------------------------------------------
>
> Key: HBASE-8790
> URL: https://issues.apache.org/jira/browse/HBASE-8790
> Project: HBase
> Issue Type: Bug
> Components: regionserver
> Affects Versions: 0.95.1
> Environment: CentOS 5.9 x86_64, java version "1.6.0_45", CDH4.3
> Reporter: Xiong LIU
> Assignee: Liang Xie
> Attachments: HBase-8790.txt
>
>
> The Hbase cluster is a fresh start with one regionserver.
> When we stop hbase, an unhandled NullPointerException is throwed in the
> regionserver.
> The regionserver's log is as follows:
> 2013-06-21 10:21:11,284 INFO [regionserver61020] regionserver.HRegionServer:
> Closing user regions
> 2013-06-21 10:21:14,288 DEBUG [regionserver61020] regionserver.HRegionServer:
> Waiting on 1028785192
> 2013-06-21 10:21:14,290 FATAL [regionserver61020] regionserver.HRegionServer:
> ABORTING region server HOSTNAME_TEST,61020,1371781086817
> : Unhandled: null
> java.lang.NullPointerException
> at
> org.apache.hadoop.hbase.regionserver.HRegionServer.tryRegionServerReport(HRegionServer.java:988)
> at
> org.apache.hadoop.hbase.regionserver.HRegionServer.run(HRegionServer.java:832)
> at java.lang.Thread.run(Thread.java:662)
> 2013-06-21 10:21:14,292 FATAL [regionserver61020] regionserver.HRegionServer:
> RegionServer abort: loaded coprocessors are: [org.apache
> .hadoop.hbase.coprocessor.MultiRowMutationEndpoint]
> 2013-06-21 10:21:14,293 INFO [regionserver61020] regionserver.HRegionServer:
> STOPPED: Unhandled: null
> 2013-06-21 10:21:14,293 INFO [regionserver61020] ipc.RpcServer: Stopping
> server on 61020
> It seems that after closing user regions, the rssStub is null.
> update:
> we found that if setting hbase.client.ipc.pool.type to RoundRobinPool(or
> other pool type) and hbase.client.ipc.pool.size to 10(possibly other values)
> in hbase-site.xml, the regionserver is continuously attempting connect to
> master. and if we stop hbase, the above NullPointerException occurred. With
> hbase.client.ipc.pool.size set to 1, the cluster can be completely stopped.
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