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https://issues.apache.org/jira/browse/HBASE-18888?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16183046#comment-16183046
 ] 

Hadoop QA commented on HBASE-18888:
-----------------------------------

| (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 
15s{color} | {color:blue} Docker mode activated. {color} |
| {color:green}+1{color} | {color:green} hbaseanti {color} | {color:green}  0m  
0s{color} | {color:green} Patch does not have any anti-patterns. {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:red}-1{color} | {color:red} test4tests {color} | {color:red}  0m  
0s{color} | {color:red} 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} |
| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green}  3m 
38s{color} | {color:green} master passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green}  0m 
35s{color} | {color:green} master passed {color} |
| {color:green}+1{color} | {color:green} checkstyle {color} | {color:green}  0m 
38s{color} | {color:green} master passed {color} |
| {color:green}+1{color} | {color:green} mvneclipse {color} | {color:green}  0m 
13s{color} | {color:green} master passed {color} |
| {color:green}+1{color} | {color:green} shadedjars {color} | {color:green}  4m 
19s{color} | {color:green} branch has no errors when building our shaded 
downstream artifacts. {color} |
| {color:green}+1{color} | {color:green} findbugs {color} | {color:green}  2m 
17s{color} | {color:green} master passed {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green}  0m 
26s{color} | {color:green} master passed {color} |
| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green}  0m 
42s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green}  0m 
33s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} javac {color} | {color:green}  0m 
33s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} checkstyle {color} | {color:green}  0m 
39s{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} shadedjars {color} | {color:green}  3m 
24s{color} | {color:green} patch has no errors when building our shaded 
downstream artifacts. {color} |
| {color:green}+1{color} | {color:green} hadoopcheck {color} | {color:green} 
33m  8s{color} | {color:green} Patch does not cause any errors with Hadoop 
2.6.1 2.6.2 2.6.3 2.6.4 2.6.5 2.7.1 2.7.2 2.7.3 or 3.0.0-alpha4. {color} |
| {color:green}+1{color} | {color:green} findbugs {color} | {color:green}  2m 
18s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green}  0m 
25s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} unit {color} | {color:green} 90m 
36s{color} | {color:green} hbase-server in the patch passed. {color} |
| {color:green}+1{color} | {color:green} asflicense {color} | {color:green}  0m 
13s{color} | {color:green} The patch does not generate ASF License warnings. 
{color} |
| {color:black}{color} | {color:black} {color} | {color:black}140m 39s{color} | 
{color:black} {color} |
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|| Subsystem || Report/Notes ||
| Docker | Client=17.05.0-ce Server=17.05.0-ce Image:yetus/hbase:5d60123 |
| JIRA Issue | HBASE-18888 |
| JIRA Patch URL | 
https://issues.apache.org/jira/secure/attachment/12889247/HBASE-18888.patch |
| Optional Tests |  asflicense  shadedjars  javac  javadoc  unit  findbugs  
hadoopcheck  hbaseanti  checkstyle  compile  |
| uname | Linux c1d2f2357d71 4.4.0-43-generic #63-Ubuntu SMP Wed Oct 12 
13:48:03 UTC 2016 x86_64 x86_64 x86_64 GNU/Linux |
| Build tool | maven |
| Personality | 
/home/jenkins/jenkins-slave/workspace/PreCommit-HBASE-Build/component/dev-support/hbase-personality.sh
 |
| git revision | master / bd68551 |
| Default Java | 1.8.0_144 |
| findbugs | v3.1.0-RC3 |
|  Test Results | 
https://builds.apache.org/job/PreCommit-HBASE-Build/8824/testReport/ |
| modules | C: hbase-server U: hbase-server |
| Console output | 
https://builds.apache.org/job/PreCommit-HBASE-Build/8824/console |
| Powered by | Apache Yetus 0.4.0   http://yetus.apache.org |


This message was automatically generated.



> StealJobQueue should call super() to init the PriorityBlockingQueue
> -------------------------------------------------------------------
>
>                 Key: HBASE-18888
>                 URL: https://issues.apache.org/jira/browse/HBASE-18888
>             Project: HBase
>          Issue Type: Bug
>    Affects Versions: 2.0.0-alpha-3
>            Reporter: ramkrishna.s.vasudevan
>            Assignee: ramkrishna.s.vasudevan
>             Fix For: 2.0.0-alpha-4
>
>         Attachments: HBASE-18888.patch
>
>
> {code}
> ERROR: java.io.IOException: 
> org.apache.hadoop.hbase.regionserver.CompactSplit$CompactionRunner cannot be 
> cast to java.lang.Comparable
>         at org.apache.hadoop.hbase.ipc.RpcServer.call(RpcServer.java:465)
>         at org.apache.hadoop.hbase.ipc.CallRunner.run(CallRunner.java:133)
>         at 
> org.apache.hadoop.hbase.ipc.RpcExecutor$Handler.run(RpcExecutor.java:278)
>         at 
> org.apache.hadoop.hbase.ipc.RpcExecutor$Handler.run(RpcExecutor.java:258)
> Caused by: java.lang.ClassCastException: 
> org.apache.hadoop.hbase.regionserver.CompactSplit$CompactionRunner cannot be 
> cast to java.lang.Comparable
>         at 
> java.util.concurrent.PriorityBlockingQueue.siftUpComparable(PriorityBlockingQueue.java:357)
>         at 
> java.util.concurrent.PriorityBlockingQueue.offer(PriorityBlockingQueue.java:489)
>         at 
> org.apache.hadoop.hbase.util.StealJobQueue.offer(StealJobQueue.java:103)
>         at 
> java.util.concurrent.ThreadPoolExecutor.execute(ThreadPoolExecutor.java:1361)
>         at 
> org.apache.hadoop.hbase.regionserver.CompactSplit.requestCompactionInternal(CompactSplit.java:291)
>         at 
> org.apache.hadoop.hbase.regionserver.CompactSplit.requestCompactionInternal(CompactSplit.java:248)
>         at 
> org.apache.hadoop.hbase.regionserver.CompactSplit.requestCompaction(CompactSplit.java:236)
>         at 
> org.apache.hadoop.hbase.regionserver.RSRpcServices.compactRegion(RSRpcServices.java:1591)
>         at 
> org.apache.hadoop.hbase.shaded.protobuf.generated.AdminProtos$AdminService$2.callBlockingMethod(AdminProtos.java:26856)
>         at org.apache.hadoop.hbase.ipc.RpcServer.call(RpcServer.java:406)
> {code}
> Seems to be a simple miss. StealJobQueue does not init the 
> PriorityBlockingQueue that it extends and so major compaction/compaction just 
> fails with the above stack trace.



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