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https://issues.apache.org/jira/browse/HBASE-17065?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16234030#comment-16234030
 ] 

Hadoop QA commented on HBASE-17065:
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| (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  
8s{color} | {color:blue} Docker mode activated. {color} |
|| || || || {color:brown} Prechecks {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:brown} master Compile Tests {color} ||
| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green}  4m 
52s{color} | {color:green} master passed {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green}  0m 
30s{color} | {color:green} master passed {color} |
|| || || || {color:brown} Patch Compile Tests {color} ||
| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green}  4m 
47s{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} javadoc {color} | {color:green}  0m 
29s{color} | {color:green} the patch passed {color} |
|| || || || {color:brown} Other Tests {color} ||
| {color:green}+1{color} | {color:green} unit {color} | {color:green} 99m 
53s{color} | {color:green} hbase-server in the patch passed. {color} |
| {color:green}+1{color} | {color:green} asflicense {color} | {color:green}  0m 
17s{color} | {color:green} The patch does not generate ASF License warnings. 
{color} |
| {color:black}{color} | {color:black} {color} | {color:black}111m  9s{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:eee3b01 |
| JIRA Issue | HBASE-17065 |
| JIRA Patch URL | 
https://issues.apache.org/jira/secure/attachment/12895159/HBASE-17065.master.001.patch
 |
| Optional Tests |  asflicense  javac  javadoc  unit  |
| uname | Linux 4b07685d26c7 3.13.0-129-generic #178-Ubuntu SMP Fri Aug 11 
12:48:20 UTC 2017 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 / 17e7aff37e |
| Default Java | 1.8.0_141 |
|  Test Results | 
https://builds.apache.org/job/PreCommit-HBASE-Build/9556/testReport/ |
| modules | C: hbase-server U: hbase-server |
| Console output | 
https://builds.apache.org/job/PreCommit-HBASE-Build/9556/console |
| Powered by | Apache Yetus 0.5.0   http://yetus.apache.org |


This message was automatically generated.



> Perform more effective sorting for RPC Handler Tasks
> ----------------------------------------------------
>
>                 Key: HBASE-17065
>                 URL: https://issues.apache.org/jira/browse/HBASE-17065
>             Project: HBase
>          Issue Type: Improvement
>            Reporter: Ted Yu
>            Assignee: Reid Chan
>            Priority: Minor
>              Labels: rpc, ui
>         Attachments: HBASE-17065.master.001.patch, Screen Shot 2017-11-01 at 
> 5.38.53 PM.png, rpc-hdlr-tasks.png
>
>
> Under the 'Show All RPC Handler Tasks' tab, the tasks are not sorted 
> according to the duration they have been in the current state (see picture).
> In TaskMonitorTmpl.jamon :
> {code}
> long now = System.currentTimeMillis();
> Collections.reverse(tasks);
> {code}
> The underlying tasks are backed by CircularFifoBuffer, leading to ineffective 
> sorting.
> We should display tasks with the longest duration (in current state) first.



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