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From "Hadoop QA (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HADOOP-12690) Consolidate access of sun.misc.Unsafe
Date Wed, 29 Mar 2017 01:09:41 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-12690?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15946332#comment-15946332
] 

Hadoop QA commented on HADOOP-12690:
------------------------------------

| (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 22s{color} | {color:blue}
Docker mode activated. {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:blue}0{color} | {color:blue} mvndep {color} | {color:blue}  1m 57s{color} | {color:blue}
Maven dependency ordering for branch {color} |
| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green} 14m  1s{color}
| {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green} 18m 48s{color} |
{color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} checkstyle {color} | {color:green}  2m  0s{color}
| {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} mvnsite {color} | {color:green}  2m  3s{color} |
{color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} mvneclipse {color} | {color:green}  0m 37s{color}
| {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} findbugs {color} | {color:green}  3m 23s{color} |
{color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green}  1m 23s{color} |
{color:green} trunk passed {color} |
| {color:blue}0{color} | {color:blue} mvndep {color} | {color:blue}  0m 43s{color} | {color:blue}
Maven dependency ordering for patch {color} |
| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green}  1m 31s{color}
| {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green} 16m 35s{color} |
{color:green} the patch passed {color} |
| {color:red}-1{color} | {color:red} javac {color} | {color:red} 16m 35s{color} | {color:red}
root generated 6 new + 768 unchanged - 9 fixed = 774 total (was 777) {color} |
| {color:orange}-0{color} | {color:orange} checkstyle {color} | {color:orange}  2m  0s{color}
| {color:orange} root: The patch generated 5 new + 152 unchanged - 2 fixed = 157 total (was
154) {color} |
| {color:green}+1{color} | {color:green} mvnsite {color} | {color:green}  1m 46s{color} |
{color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} mvneclipse {color} | {color:green}  0m 45s{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} findbugs {color} | {color:green}  4m 12s{color} |
{color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green}  1m 25s{color} |
{color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} unit {color} | {color:green}  8m  4s{color} | {color:green}
hadoop-common in the patch passed. {color} |
| {color:green}+1{color} | {color:green} unit {color} | {color:green}  1m 17s{color} | {color:green}
hadoop-hdfs-client in the patch passed. {color} |
| {color:green}+1{color} | {color:green} asflicense {color} | {color:green}  0m 42s{color}
| {color:green} The patch does not generate ASF License warnings. {color} |
| {color:black}{color} | {color:black} {color} | {color:black}108m 21s{color} | {color:black}
{color} |
\\
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|| Subsystem || Report/Notes ||
| Docker |  Image:yetus/hadoop:a9ad5d6 |
| JIRA Issue | HADOOP-12690 |
| JIRA Patch URL | https://issues.apache.org/jira/secure/attachment/12789041/HADOOP-12690-v3.1.patch
|
| Optional Tests |  asflicense  compile  javac  javadoc  mvninstall  mvnsite  unit  findbugs
 checkstyle  |
| uname | Linux 030ad647acca 3.13.0-108-generic #155-Ubuntu SMP Wed Jan 11 16:58:52 UTC 2017
x86_64 x86_64 x86_64 GNU/Linux |
| Build tool | maven |
| Personality | /testptch/hadoop/patchprocess/precommit/personality/provided.sh |
| git revision | trunk / 063b513 |
| Default Java | 1.8.0_121 |
| findbugs | v3.0.0 |
| javac | https://builds.apache.org/job/PreCommit-HADOOP-Build/11969/artifact/patchprocess/diff-compile-javac-root.txt
|
| checkstyle | https://builds.apache.org/job/PreCommit-HADOOP-Build/11969/artifact/patchprocess/diff-checkstyle-root.txt
|
|  Test Results | https://builds.apache.org/job/PreCommit-HADOOP-Build/11969/testReport/ |
| modules | C: hadoop-common-project/hadoop-common hadoop-hdfs-project/hadoop-hdfs-client
U: . |
| Console output | https://builds.apache.org/job/PreCommit-HADOOP-Build/11969/console |
| Powered by | Apache Yetus 0.5.0-SNAPSHOT   http://yetus.apache.org |


This message was automatically generated.



> Consolidate access of sun.misc.Unsafe 
> --------------------------------------
>
>                 Key: HADOOP-12690
>                 URL: https://issues.apache.org/jira/browse/HADOOP-12690
>             Project: Hadoop Common
>          Issue Type: Bug
>            Reporter: Junping Du
>            Assignee: Junping Du
>         Attachments: HADOOP-12690.patch, HADOOP-12690-v2.1.patch, HADOOP-12690-v2.patch,
HADOOP-12690-v3.1.patch, HADOOP-12690-v3.patch
>
>
> Per discussion in Hadoop-12630 (https://issues.apache.org/jira/browse/HADOOP-12630?focusedCommentId=15082142&page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#comment-15082142),
we found the access of sun.misc.Unsafe could be problematic for some JVMs in other platforms.
Also, hints from other comments, it is better to consolidate it as a helper/utility method
to shared with several places (FastByteComparisons, NativeIO, ShortCircuitShm). 



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