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From "Hadoop QA (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-15202) Reduce garbage while setting response
Date Thu, 04 Feb 2016 15:23:39 GMT

    [ https://issues.apache.org/jira/browse/HBASE-15202?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15132435#comment-15132435
] 

Hadoop QA commented on HBASE-15202:
-----------------------------------

| (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 1s {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 49s {color}
| {color:green} master passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green} 0m 55s {color} |
{color:green} master passed with JDK v1.8.0_66 {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green} 0m 45s {color} |
{color:green} master passed with JDK v1.7.0_91 {color} |
| {color:green}+1{color} | {color:green} checkstyle {color} | {color:green} 4m 51s {color}
| {color:green} master passed {color} |
| {color:green}+1{color} | {color:green} mvneclipse {color} | {color:green} 0m 26s {color}
| {color:green} master passed {color} |
| {color:green}+1{color} | {color:green} findbugs {color} | {color:green} 2m 38s {color} |
{color:green} master passed {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green} 0m 42s {color} |
{color:green} master passed with JDK v1.8.0_66 {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green} 0m 44s {color} |
{color:green} master passed with JDK v1.7.0_91 {color} |
| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green} 0m 59s {color}
| {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green} 0m 48s {color} |
{color:green} the patch passed with JDK v1.8.0_66 {color} |
| {color:green}+1{color} | {color:green} javac {color} | {color:green} 0m 48s {color} | {color:green}
the patch passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green} 0m 45s {color} |
{color:green} the patch passed with JDK v1.7.0_91 {color} |
| {color:green}+1{color} | {color:green} javac {color} | {color:green} 0m 45s {color} | {color:green}
the patch passed {color} |
| {color:green}+1{color} | {color:green} checkstyle {color} | {color:green} 4m 49s {color}
| {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} mvneclipse {color} | {color:green} 0m 22s {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} hadoopcheck {color} | {color:green} 24m 32s {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. {color} |
| {color:green}+1{color} | {color:green} findbugs {color} | {color:green} 2m 2s {color} |
{color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green} 0m 29s {color} |
{color:green} the patch passed with JDK v1.8.0_66 {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green} 0m 35s {color} |
{color:green} the patch passed with JDK v1.7.0_91 {color} |
| {color:red}-1{color} | {color:red} unit {color} | {color:red} 98m 56s {color} | {color:red}
hbase-server in the patch failed with JDK v1.8.0_66. {color} |
| {color:red}-1{color} | {color:red} unit {color} | {color:red} 93m 52s {color} | {color:red}
hbase-server in the patch failed with JDK v1.7.0_91. {color} |
| {color:green}+1{color} | {color:green} asflicense {color} | {color:green} 0m 16s {color}
| {color:green} Patch does not generate ASF License warnings. {color} |
| {color:black}{color} | {color:black} {color} | {color:black} 244m 7s {color} | {color:black}
{color} |
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|| Reason || Tests ||
| JDK v1.8.0_66 Timed out junit tests | org.apache.hadoop.hbase.snapshot.TestFlushSnapshotFromClient
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| JDK v1.7.0_91 Failed junit tests | hadoop.hbase.client.TestBlockEvictionFromClient |
|   | hadoop.hbase.mapreduce.TestCopyTable |
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|| Subsystem || Report/Notes ||
| Docker | Client=1.9.1 Server=1.9.1 Image:yetus/hbase:date2016-02-04 |
| JIRA Patch URL | https://issues.apache.org/jira/secure/attachment/12786234/HBASE-15202_3.patch
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| JIRA Issue | HBASE-15202 |
| Optional Tests |  asflicense  javac  javadoc  unit  findbugs  hadoopcheck  hbaseanti  checkstyle
 compile  |
| uname | Linux 5ca7197237d2 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/component/dev-support/hbase-personality.sh
|
| git revision | master / 2cf8af5 |
| findbugs | v3.0.0 |
| unit | https://builds.apache.org/job/PreCommit-HBASE-Build/428/artifact/patchprocess/patch-unit-hbase-server-jdk1.8.0_66.txt
|
| unit | https://builds.apache.org/job/PreCommit-HBASE-Build/428/artifact/patchprocess/patch-unit-hbase-server-jdk1.7.0_91.txt
|
| unit test logs |  https://builds.apache.org/job/PreCommit-HBASE-Build/428/artifact/patchprocess/patch-unit-hbase-server-jdk1.8.0_66.txt
https://builds.apache.org/job/PreCommit-HBASE-Build/428/artifact/patchprocess/patch-unit-hbase-server-jdk1.7.0_91.txt
|
| JDK v1.7.0_91  Test Results | https://builds.apache.org/job/PreCommit-HBASE-Build/428/testReport/
|
| modules | C: hbase-server U: hbase-server |
| Max memory used | 400MB |
| Powered by | Apache Yetus 0.1.0   http://yetus.apache.org |
| Console output | https://builds.apache.org/job/PreCommit-HBASE-Build/428/console |


This message was automatically generated.



> Reduce garbage while setting response
> -------------------------------------
>
>                 Key: HBASE-15202
>                 URL: https://issues.apache.org/jira/browse/HBASE-15202
>             Project: HBase
>          Issue Type: Sub-task
>          Components: regionserver
>            Reporter: ramkrishna.s.vasudevan
>            Assignee: ramkrishna.s.vasudevan
>            Priority: Minor
>             Fix For: 2.0.0
>
>         Attachments: HBASE-15202.patch, HBASE-15202_1.patch, HBASE-15202_2.patch, HBASE-15202_3.patch
>
>
> Probably this can move under HBASE-15177.  During RpcServer#setResponse we do IPCUtil.getDelimitedMessageAsByteBuffer
for the header and result. This internally creates a byte[], CodedOutputStream and a BB. Then
the totalSize is also wrapped in a BB. 
> Finally all these BB are passed to BufferChain along with the Cellblock.
> This JIRA is to reduce the number of objects that we create here and allow one BB from
this header, result and total Size along with one CodedOutputStream and pass this BB along
with the Cellblocks to the Bufferchain. From the JMC tool can observe around 2% lesser object
allocation arising out of these objects. 



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