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https://issues.apache.org/jira/browse/HADOOP-13010?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15234695#comment-15234695
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Hadoop QA commented on HADOOP-13010:
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| (/) *{color:green}+1 overall{color}* |
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|| Vote || Subsystem || Runtime || Comment ||
| {color:blue}0{color} | {color:blue} reexec {color} | {color:blue} 0m 19s 
{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:green}+1{color} | {color:green} mvninstall {color} | {color:green} 11m 
33s {color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green} 12m 
53s {color} | {color:green} trunk passed with JDK v1.8.0_77 {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green} 9m 30s 
{color} | {color:green} trunk passed with JDK v1.7.0_95 {color} |
| {color:green}+1{color} | {color:green} checkstyle {color} | {color:green} 0m 
23s {color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} mvnsite {color} | {color:green} 1m 11s 
{color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} mvneclipse {color} | {color:green} 0m 
16s {color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} findbugs {color} | {color:green} 2m 3s 
{color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green} 1m 5s 
{color} | {color:green} trunk passed with JDK v1.8.0_77 {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green} 1m 4s 
{color} | {color:green} trunk passed with JDK v1.7.0_95 {color} |
| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green} 0m 
43s {color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green} 8m 16s 
{color} | {color:green} the patch passed with JDK v1.8.0_77 {color} |
| {color:green}+1{color} | {color:green} javac {color} | {color:green} 8m 16s 
{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green} 7m 25s 
{color} | {color:green} the patch passed with JDK v1.7.0_95 {color} |
| {color:green}+1{color} | {color:green} javac {color} | {color:green} 7m 25s 
{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} checkstyle {color} | {color:green} 0m 
21s {color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} mvnsite {color} | {color:green} 0m 57s 
{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} mvneclipse {color} | {color:green} 0m 
12s {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} findbugs {color} | {color:green} 1m 
50s {color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green} 1m 2s 
{color} | {color:green} the patch passed with JDK v1.8.0_77 {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green} 1m 7s 
{color} | {color:green} the patch passed with JDK v1.7.0_95 {color} |
| {color:green}+1{color} | {color:green} unit {color} | {color:green} 10m 1s 
{color} | {color:green} hadoop-common in the patch passed with JDK v1.8.0_77. 
{color} |
| {color:green}+1{color} | {color:green} unit {color} | {color:green} 9m 34s 
{color} | {color:green} hadoop-common in the patch passed with JDK v1.7.0_95. 
{color} |
| {color:green}+1{color} | {color:green} asflicense {color} | {color:green} 0m 
23s {color} | {color:green} Patch does not generate ASF License warnings. 
{color} |
| {color:black}{color} | {color:black} {color} | {color:black} 83m 21s {color} 
| {color:black} {color} |
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|| Subsystem || Report/Notes ||
| Docker |  Image:yetus/hadoop:fbe3e86 |
| JIRA Patch URL | 
https://issues.apache.org/jira/secure/attachment/12797980/HADOOP-13010-v2.patch 
|
| JIRA Issue | HADOOP-13010 |
| Optional Tests |  asflicense  compile  javac  javadoc  mvninstall  mvnsite  
unit  findbugs  checkstyle  |
| uname | Linux 879fee56ee27 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 | /testptch/hadoop/patchprocess/precommit/personality/provided.sh 
|
| git revision | trunk / 1ff27f9 |
| Default Java | 1.7.0_95 |
| Multi-JDK versions |  /usr/lib/jvm/java-8-oracle:1.8.0_77 
/usr/lib/jvm/java-7-openjdk-amd64:1.7.0_95 |
| findbugs | v3.0.0 |
| JDK v1.7.0_95  Test Results | 
https://builds.apache.org/job/PreCommit-HADOOP-Build/9057/testReport/ |
| modules | C: hadoop-common-project/hadoop-common U: 
hadoop-common-project/hadoop-common |
| Console output | 
https://builds.apache.org/job/PreCommit-HADOOP-Build/9057/console |
| Powered by | Apache Yetus 0.2.0   http://yetus.apache.org |


This message was automatically generated.



> Refactor raw erasure coders
> ---------------------------
>
>                 Key: HADOOP-13010
>                 URL: https://issues.apache.org/jira/browse/HADOOP-13010
>             Project: Hadoop Common
>          Issue Type: Sub-task
>            Reporter: Kai Zheng
>            Assignee: Kai Zheng
>             Fix For: 3.0.0
>
>         Attachments: HADOOP-13010-v1.patch, HADOOP-13010-v2.patch
>
>
> This will refactor raw erasure coders according to some comments received so 
> far.
> * As discussed in HADOOP-11540 and suggested by [~cmccabe], better not to 
> rely class inheritance to reuse the codes, instead they can be moved to some 
> utility.
> * Suggested by [~jingzhao] somewhere quite some time ago, better to have a 
> state holder to keep some checking results for later reuse during an 
> encode/decode call.
> This would not get rid of some inheritance levels as doing so isn't clear yet 
> for the moment and also incurs big impact. I do wish the end result by this 
> refactoring will make all the levels more clear and easier to follow.



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