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https://issues.apache.org/jira/browse/HBASE-15784?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15273964#comment-15273964
 ] 

Hadoop QA commented on HBASE-15784:
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| (/) *{color:green}+1 overall{color}* |
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|| Vote || Subsystem || Runtime || Comment ||
| {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:green}+1{color} | {color:green} test4tests {color} | {color:green} 0m 
0s {color} | {color:green} The patch appears to include 6 new or modified test 
files. {color} |
| {color:blue}0{color} | {color:blue} mvndep {color} | {color:blue} 0m 26s 
{color} | {color:blue} Maven dependency ordering for branch {color} |
| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green} 3m 
50s {color} | {color:green} master passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green} 2m 3s 
{color} | {color:green} master passed with JDK v1.8.0 {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green} 1m 34s 
{color} | {color:green} master passed with JDK v1.7.0_79 {color} |
| {color:green}+1{color} | {color:green} checkstyle {color} | {color:green} 6m 
5s {color} | {color:green} master passed {color} |
| {color:green}+1{color} | {color:green} mvneclipse {color} | {color:green} 0m 
50s {color} | {color:green} master passed {color} |
| {color:green}+1{color} | {color:green} findbugs {color} | {color:green} 5m 
18s {color} | {color:green} master passed {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green} 2m 3s 
{color} | {color:green} master passed with JDK v1.8.0 {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green} 1m 57s 
{color} | {color:green} master passed with JDK v1.7.0_79 {color} |
| {color:blue}0{color} | {color:blue} mvndep {color} | {color:blue} 0m 12s 
{color} | {color:blue} Maven dependency ordering for patch {color} |
| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green} 1m 
53s {color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green} 2m 24s 
{color} | {color:green} the patch passed with JDK v1.8.0 {color} |
| {color:green}+1{color} | {color:green} javac {color} | {color:green} 2m 24s 
{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green} 1m 32s 
{color} | {color:green} the patch passed with JDK v1.7.0_79 {color} |
| {color:green}+1{color} | {color:green} javac {color} | {color:green} 1m 32s 
{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} checkstyle {color} | {color:green} 6m 
15s {color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} mvneclipse {color} | {color:green} 0m 
53s {color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} whitespace {color} | {color:green} 0m 
0s {color} | {color:green} Patch has no whitespace issues. {color} |
| {color:green}+1{color} | {color:green} xml {color} | {color:green} 0m 1s 
{color} | {color:green} The patch has no ill-formed XML file. {color} |
| {color:green}+1{color} | {color:green} hadoopcheck {color} | {color:green} 
11m 23s {color} | {color:green} Patch does not cause any errors with Hadoop 
2.4.1 2.5.2 2.6.0. {color} |
| {color:green}+1{color} | {color:green} findbugs {color} | {color:green} 6m 
46s {color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green} 2m 8s 
{color} | {color:green} the patch passed with JDK v1.8.0 {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green} 1m 59s 
{color} | {color:green} the patch passed with JDK v1.7.0_79 {color} |
| {color:green}+1{color} | {color:green} unit {color} | {color:green} 1m 9s 
{color} | {color:green} hbase-client in the patch passed. {color} |
| {color:green}+1{color} | {color:green} unit {color} | {color:green} 132m 29s 
{color} | {color:green} hbase-server in the patch passed. {color} |
| {color:green}+1{color} | {color:green} unit {color} | {color:green} 0m 42s 
{color} | {color:green} hbase-thrift in the patch passed. {color} |
| {color:green}+1{color} | {color:green} asflicense {color} | {color:green} 0m 
41s {color} | {color:green} Patch does not generate ASF License warnings. 
{color} |
| {color:black}{color} | {color:black} {color} | {color:black} 195m 56s {color} 
| {color:black} {color} |
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|| Subsystem || Report/Notes ||
| JIRA Patch URL | 
https://issues.apache.org/jira/secure/attachment/12802635/HBASE-15784-v2.patch |
| JIRA Issue | HBASE-15784 |
| Optional Tests |  asflicense  javac  javadoc  unit  findbugs  hadoopcheck  
hbaseanti  checkstyle  compile  xml  |
| uname | Linux asf910.gq1.ygridcore.net 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/test_framework/yetus-0.2.1/lib/precommit/personality/hbase.sh
 |
| git revision | master / 0d25291 |
| Default Java | 1.7.0_79 |
| Multi-JDK versions |  /home/jenkins/tools/java/jdk1.8.0:1.8.0 
/usr/local/jenkins/java/jdk1.7.0_79:1.7.0_79 |
| findbugs | v3.0.0 |
|  Test Results | 
https://builds.apache.org/job/PreCommit-HBASE-Build/1797/testReport/ |
| modules | C: hbase-client hbase-server hbase-thrift U: . |
| Console output | 
https://builds.apache.org/job/PreCommit-HBASE-Build/1797/console |
| Powered by | Apache Yetus 0.2.1   http://yetus.apache.org |


This message was automatically generated.



> MIsuse core/maxPoolSize of LinkedBlockingQueue in ThreadPoolExecutor
> --------------------------------------------------------------------
>
>                 Key: HBASE-15784
>                 URL: https://issues.apache.org/jira/browse/HBASE-15784
>             Project: HBase
>          Issue Type: Bug
>          Components: Client, Replication, Thrift
>            Reporter: Jingcheng Du
>            Assignee: Jingcheng Du
>         Attachments: HBASE-15784-v2.patch, HBASE-15784.patch
>
>
> LinkedBlockingQueue is usually used in ThreadPoolExecutor. It allows the 
> thread pool not to be blocked if the number of running threads in the pool is 
> less than the max pool size and the queue is not full.
> But when the core pool size of ThreadPoolExecutor is different from the max 
> pool size, the things don't go as expected. When the number of running 
> threads is the same with the core size, more requests of executions are added 
> into the LinkedBlockingQueue. And the requests can be executed again only 
> when LinkedBlockingQueue is full or some of running threads are finished.
> Thus it is better to use the same value for the core and max pool size when 
> the LinkedBlockingQueue is used.



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