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From "Hadoop QA (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-18375) The pool chunks from ChunkCreator are deallocated while in pool because there is no reference to them
Date Sun, 27 Aug 2017 09:45:02 GMT

    [ https://issues.apache.org/jira/browse/HBASE-18375?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16143052#comment-16143052
] 

Hadoop QA commented on HBASE-18375:
-----------------------------------

| (/) *{color:green}+1 overall{color}* |
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|| Vote || Subsystem || Runtime || Comment ||
| {color:blue}0{color} | {color:blue} reexec {color} | {color:blue}  0m 21s{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:green}+1{color} | {color:green} test4tests {color} | {color:green}  0m  0s{color}
| {color:green} The patch appears to include 2 new or modified test files. {color} |
| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green}  3m 33s{color}
| {color:green} branch-2 passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green}  0m 37s{color} |
{color:green} branch-2 passed {color} |
| {color:green}+1{color} | {color:green} checkstyle {color} | {color:green}  0m 44s{color}
| {color:green} branch-2 passed {color} |
| {color:green}+1{color} | {color:green} mvneclipse {color} | {color:green}  0m 16s{color}
| {color:green} branch-2 passed {color} |
| {color:green}+1{color} | {color:green} findbugs {color} | {color:green}  2m 13s{color} |
{color:green} branch-2 passed {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green}  0m 28s{color} |
{color:green} branch-2 passed {color} |
| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green}  0m 44s{color}
| {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green}  0m 38s{color} |
{color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} javac {color} | {color:green}  0m 38s{color} | {color:green}
the patch passed {color} |
| {color:green}+1{color} | {color:green} checkstyle {color} | {color:green}  0m 45s{color}
| {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} mvneclipse {color} | {color:green}  0m 15s{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 27s{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-alpha2. {color} |
| {color:green}+1{color} | {color:green} findbugs {color} | {color:green}  2m 19s{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:green}+1{color} | {color:green} unit {color} | {color:green} 88m  0s{color} | {color:green}
hbase-server in the patch passed. {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}133m 26s{color} | {color:black}
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|| Subsystem || Report/Notes ||
| Docker | Client=1.12.3 Server=1.12.3 Image:yetus/hbase:3c8b364 |
| JIRA Issue | HBASE-18375 |
| JIRA Patch URL | https://issues.apache.org/jira/secure/attachment/12883966/HBASE-18375-branch-2.patch
|
| Optional Tests |  asflicense  javac  javadoc  unit  findbugs  hadoopcheck  hbaseanti  checkstyle
 compile  |
| uname | Linux 39aa2a167465 3.13.0-119-generic #166-Ubuntu SMP Wed May 3 12:18:55 UTC 2017
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 | branch-2 / 6db3d81 |
| Default Java | 1.8.0_144 |
| findbugs | v3.1.0-RC3 |
|  Test Results | https://builds.apache.org/job/PreCommit-HBASE-Build/8346/testReport/ |
| modules | C: hbase-server U: hbase-server |
| Console output | https://builds.apache.org/job/PreCommit-HBASE-Build/8346/console |
| Powered by | Apache Yetus 0.4.0   http://yetus.apache.org |


This message was automatically generated.



> The pool chunks from ChunkCreator are deallocated while in pool because there is no reference
to them
> -----------------------------------------------------------------------------------------------------
>
>                 Key: HBASE-18375
>                 URL: https://issues.apache.org/jira/browse/HBASE-18375
>             Project: HBase
>          Issue Type: Sub-task
>    Affects Versions: 2.0.0-alpha-1
>            Reporter: Anastasia Braginsky
>            Assignee: Anastasia Braginsky
>            Priority: Critical
>             Fix For: 2.0.0
>
>         Attachments: HBASE-18375-branch-2.patch, HBASE-18375-V01.patch, HBASE-18375-V02-branch-2.patch,
HBASE-18375-V02.patch, HBASE-18375-V03.patch, HBASE-18375-V04.patch, HBASE-18375-V05.patch,
HBASE-18375-V06.patch, HBASE-18375-V07.patch, HBASE-18375-V08.patch, HBASE-18375-V09.patch,
HBASE-18375-V10.patch, HBASE-18375-V11.patch
>
>
> Because MSLAB list of chunks was changed to list of chunk IDs, the chunks returned back
to pool can be deallocated by JVM because there is no reference to them. The solution is to
protect pool chunks from GC by the strong map of ChunkCreator introduced by HBASE-18010. Will
prepare the patch today.



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