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From "Hadoop QA (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-16874) Potential NPE from ProcedureExecutor#stop()
Date Wed, 19 Oct 2016 06:05:58 GMT

    [ https://issues.apache.org/jira/browse/HBASE-16874?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15587795#comment-15587795
] 

Hadoop QA commented on HBASE-16874:
-----------------------------------

| (x) *{color:red}-1 overall{color}* |
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|| Vote || Subsystem || Runtime || Comment ||
| {color:blue}0{color} | {color:blue} reexec {color} | {color:blue} 0m 14s {color} | {color:blue}
Docker mode activated. {color} |
| {color:green}+1{color} | {color:green} @author {color} | {color:green} 0m 0s {color} | {color:green}
The patch does not contain any @author tags. {color} |
| {color:green}+1{color} | {color:green} test4tests {color} | {color:green} 0m 0s {color}
| {color:green} The patch appears to include 1 new or modified test files. {color} |
| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green} 3m 34s {color}
| {color:green} master passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green} 0m 40s {color} |
{color:green} master passed {color} |
| {color:green}+1{color} | {color:green} checkstyle {color} | {color:green} 0m 49s {color}
| {color:green} master passed {color} |
| {color:green}+1{color} | {color:green} mvneclipse {color} | {color:green} 0m 14s {color}
| {color:green} master passed {color} |
| {color:red}-1{color} | {color:red} findbugs {color} | {color:red} 1m 53s {color} | {color:red}
hbase-server in master has 1 extant Findbugs warnings. {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green} 0m 32s {color} |
{color:green} master passed {color} |
| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green} 0m 50s {color}
| {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green} 0m 41s {color} |
{color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} javac {color} | {color:green} 0m 41s {color} | {color:green}
the patch passed {color} |
| {color:green}+1{color} | {color:green} checkstyle {color} | {color:green} 0m 47s {color}
| {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} mvneclipse {color} | {color:green} 0m 13s {color}
| {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} whitespace {color} | {color:green} 0m 0s {color}
| {color:green} The patch has no whitespace issues. {color} |
| {color:green}+1{color} | {color:green} hadoopcheck {color} | {color:green} 31m 7s {color}
| {color:green} Patch does not cause any errors with Hadoop 2.4.0 2.4.1 2.5.0 2.5.1 2.5.2
2.6.1 2.6.2 2.6.3 2.7.1 or 3.0.0-alpha1. {color} |
| {color:green}+1{color} | {color:green} hbaseprotoc {color} | {color:green} 0m 13s {color}
| {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} findbugs {color} | {color:green} 1m 58s {color} |
{color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green} 0m 27s {color} |
{color:green} the patch passed {color} |
| {color:red}-1{color} | {color:red} unit {color} | {color:red} 83m 27s {color} | {color:red}
hbase-server in the patch failed. {color} |
| {color:green}+1{color} | {color:green} asflicense {color} | {color:green} 0m 15s {color}
| {color:green} The patch does not generate ASF License warnings. {color} |
| {color:black}{color} | {color:black} {color} | {color:black} 128m 16s {color} | {color:black}
{color} |
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|| Reason || Tests ||
| Failed junit tests | hadoop.hbase.regionserver.TestHRegion |
| Timed out junit tests | org.apache.hadoop.hbase.master.TestGetLastFlushedSequenceId |
|   | org.apache.hadoop.hbase.master.TestSplitLogManager |
|   | org.apache.hadoop.hbase.master.procedure.TestWALProcedureStoreOnHDFS |
|   | org.apache.hadoop.hbase.master.procedure.TestDeleteColumnFamilyProcedureFromClient |
|   | org.apache.hadoop.hbase.master.TestRegionPlacement2 |
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|| Subsystem || Report/Notes ||
| Docker | Client=1.11.2 Server=1.11.2 Image:yetus/hbase:7bda515 |
| JIRA Patch URL | https://issues.apache.org/jira/secure/attachment/12834042/HBASE-16874-v0.patch
|
| JIRA Issue | HBASE-16874 |
| Optional Tests |  asflicense  javac  javadoc  unit  findbugs  hadoopcheck  hbaseanti  checkstyle
 compile  |
| uname | Linux 46bb5e1afaa8 3.13.0-36-lowlatency #63-Ubuntu SMP PREEMPT Wed Sep 3 21:56:12
UTC 2014 x86_64 x86_64 x86_64 GNU/Linux |
| Build tool | maven |
| Personality | /home/jenkins/jenkins-slave/workspace/PreCommit-HBASE-Build@2/component/dev-support/hbase-personality.sh
|
| git revision | master / ef8c65e |
| Default Java | 1.8.0_101 |
| findbugs | v3.0.0 |
| findbugs | https://builds.apache.org/job/PreCommit-HBASE-Build/4096/artifact/patchprocess/branch-findbugs-hbase-server-warnings.html
|
| unit | https://builds.apache.org/job/PreCommit-HBASE-Build/4096/artifact/patchprocess/patch-unit-hbase-server.txt
|
| unit test logs |  https://builds.apache.org/job/PreCommit-HBASE-Build/4096/artifact/patchprocess/patch-unit-hbase-server.txt
|
|  Test Results | https://builds.apache.org/job/PreCommit-HBASE-Build/4096/testReport/ |
| modules | C: hbase-server U: hbase-server |
| Console output | https://builds.apache.org/job/PreCommit-HBASE-Build/4096/console |
| Powered by | Apache Yetus 0.3.0   http://yetus.apache.org |


This message was automatically generated.



> Potential NPE from ProcedureExecutor#stop()
> -------------------------------------------
>
>                 Key: HBASE-16874
>                 URL: https://issues.apache.org/jira/browse/HBASE-16874
>             Project: HBase
>          Issue Type: Bug
>          Components: proc-v2
>            Reporter: Ted Yu
>            Assignee: Matteo Bertozzi
>            Priority: Minor
>             Fix For: 2.0.0
>
>         Attachments: 16874.v1.txt, HBASE-16874-v0.patch
>
>
> When examining failed test :
> https://builds.apache.org/job/HBase-TRUNK_matrix/lastCompletedBuild/jdk=JDK%201.8%20(latest),label=yahoo-not-h2/testReport/org.apache.hadoop.hbase.master.procedure/TestMasterFailoverWithProcedures/org_apache_hadoop_hbase_master_procedure_TestMasterFailoverWithProcedures/
> I noticed the following:
> {code}
> 2016-10-18 18:47:39,313 INFO  [Time-limited test] procedure.TestMasterFailoverWithProcedures(306):
Restart 2 exec state: TRUNCATE_TABLE_CLEAR_FS_LAYOUT
> Exception in thread "ProcedureExecutorWorker-1" java.lang.NullPointerException
> 	at org.apache.hadoop.hbase.procedure2.ProcedureExecutor.stop(ProcedureExecutor.java:533)
> 	at org.apache.hadoop.hbase.procedure2.ProcedureExecutor.execProcedure(ProcedureExecutor.java:1197)
> 	at org.apache.hadoop.hbase.procedure2.ProcedureExecutor.executeProcedure(ProcedureExecutor.java:959)
> 	at org.apache.hadoop.hbase.procedure2.ProcedureExecutor.access$700(ProcedureExecutor.java:73)
> 	at org.apache.hadoop.hbase.procedure2.ProcedureExecutor$WorkerThread.run(ProcedureExecutor.java:1405)
> {code}
> This seems to be the result of race between stop() and join() methods.



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