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https://issues.apache.org/jira/browse/HADOOP-12327?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14979020#comment-14979020
 ] 

Hadoop QA commented on HADOOP-12327:
------------------------------------

| (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 13s 
{color} | {color:blue} docker + precommit patch detected. {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 
27s {color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green} 5m 11s 
{color} | {color:green} trunk passed with JDK v1.8.0_60 {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green} 4m 45s 
{color} | {color:green} trunk passed with JDK v1.7.0_79 {color} |
| {color:green}+1{color} | {color:green} checkstyle {color} | {color:green} 1m 
9s {color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} mvneclipse {color} | {color:green} 0m 
43s {color} | {color:green} trunk passed {color} |
| {color:red}-1{color} | {color:red} findbugs {color} | {color:red} 2m 14s 
{color} | {color:red} hadoop-hdfs-project/hadoop-hdfs in trunk cannot run 
convertXmlToText from findbugs {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green} 2m 54s 
{color} | {color:green} trunk passed with JDK v1.8.0_60 {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green} 3m 44s 
{color} | {color:green} trunk passed with JDK v1.7.0_79 {color} |
| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green} 3m 
0s {color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green} 5m 3s 
{color} | {color:green} the patch passed with JDK v1.8.0_60 {color} |
| {color:green}+1{color} | {color:green} javac {color} | {color:green} 5m 3s 
{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green} 4m 48s 
{color} | {color:green} the patch passed with JDK v1.7.0_79 {color} |
| {color:green}+1{color} | {color:green} javac {color} | {color:green} 4m 48s 
{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} checkstyle {color} | {color:green} 1m 
10s {color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} mvneclipse {color} | {color:green} 0m 
44s {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} 6m 
27s {color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green} 2m 35s 
{color} | {color:green} the patch passed with JDK v1.8.0_60 {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green} 3m 25s 
{color} | {color:green} the patch passed with JDK v1.7.0_79 {color} |
| {color:green}+1{color} | {color:green} unit {color} | {color:green} 7m 51s 
{color} | {color:green} hadoop-common in the patch passed with JDK v1.8.0_60. 
{color} |
| {color:red}-1{color} | {color:red} unit {color} | {color:red} 57m 25s {color} 
| {color:red} hadoop-hdfs in the patch failed with JDK v1.8.0_60. {color} |
| {color:green}+1{color} | {color:green} unit {color} | {color:green} 0m 28s 
{color} | {color:green} hadoop-hdfs-client in the patch passed with JDK 
v1.8.0_60. {color} |
| {color:red}-1{color} | {color:red} unit {color} | {color:red} 19m 19s {color} 
| {color:red} hadoop-common in the patch failed with JDK v1.7.0_79. {color} |
| {color:red}-1{color} | {color:red} unit {color} | {color:red} 65m 35s {color} 
| {color:red} hadoop-hdfs in the patch failed with JDK v1.7.0_79. {color} |
| {color:green}+1{color} | {color:green} unit {color} | {color:green} 0m 39s 
{color} | {color:green} hadoop-hdfs-client in the patch passed with JDK 
v1.7.0_79. {color} |
| {color:red}-1{color} | {color:red} asflicense {color} | {color:red} 0m 26s 
{color} | {color:red} Patch generated 58 ASF License warnings. {color} |
| {color:black}{color} | {color:black} {color} | {color:black} 208m 56s {color} 
| {color:black} {color} |
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|| Reason || Tests ||
| JDK v1.7.0_79 Failed junit tests | 
hadoop.hdfs.server.blockmanagement.TestNodeCount |
|   | hadoop.hdfs.tools.TestDFSZKFailoverController |
|   | hadoop.hdfs.server.blockmanagement.TestBlockTokenWithDFSStriped |
|   | hadoop.hdfs.server.datanode.TestBlockScanner |
|   | hadoop.metrics2.impl.TestMetricsSystemImpl |
|   | hadoop.net.TestClusterTopology |
|   | hadoop.hdfs.server.datanode.TestDirectoryScanner |
|   | hadoop.hdfs.server.blockmanagement.TestNodeCount |
|   | hadoop.hdfs.TestErasureCodingPolicies |
|   | hadoop.hdfs.TestRecoverStripedFile |
| JDK v1.7.0_79 Timed out junit tests | 
org.apache.hadoop.http.TestHttpServerLifecycle |
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|| Subsystem || Report/Notes ||
| Docker | Client=1.7.1 Server=1.7.1 
Image:test-patch-base-hadoop-date2015-10-28 |
| JIRA Patch URL | 
https://issues.apache.org/jira/secure/attachment/12769268/HADOOP-12327-v2.patch 
|
| JIRA Issue | HADOOP-12327 |
| Optional Tests |  asflicense  javac  javadoc  mvninstall  unit  findbugs  
checkstyle  compile  |
| uname | Linux 2d58cf169bca 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-HADOOP-Build/patchprocess/apache-yetus-67f42f1/precommit/personality/hadoop.sh
 |
| git revision | trunk / e287e7d |
| Default Java | 1.7.0_79 |
| Multi-JDK versions |  /usr/lib/jvm/java-8-oracle:1.8.0_60 
/usr/lib/jvm/java-7-openjdk-amd64:1.7.0_79 |
| findbugs | v3.0.0 |
| findbugs | 
https://builds.apache.org/job/PreCommit-HADOOP-Build/7963/artifact/patchprocess/branch-findbugs-hadoop-hdfs-project_hadoop-hdfs.html
 |
| unit | 
https://builds.apache.org/job/PreCommit-HADOOP-Build/7963/artifact/patchprocess/patch-unit-hadoop-hdfs-project_hadoop-hdfs-jdk1.8.0_60.txt
 |
| unit | 
https://builds.apache.org/job/PreCommit-HADOOP-Build/7963/artifact/patchprocess/patch-unit-hadoop-common-project_hadoop-common-jdk1.7.0_79.txt
 |
| unit | 
https://builds.apache.org/job/PreCommit-HADOOP-Build/7963/artifact/patchprocess/patch-unit-hadoop-hdfs-project_hadoop-hdfs-jdk1.7.0_79.txt
 |
| unit test logs |  
https://builds.apache.org/job/PreCommit-HADOOP-Build/7963/artifact/patchprocess/patch-unit-hadoop-hdfs-project_hadoop-hdfs-jdk1.8.0_60.txt
 
https://builds.apache.org/job/PreCommit-HADOOP-Build/7963/artifact/patchprocess/patch-unit-hadoop-common-project_hadoop-common-jdk1.7.0_79.txt
 
https://builds.apache.org/job/PreCommit-HADOOP-Build/7963/artifact/patchprocess/patch-unit-hadoop-hdfs-project_hadoop-hdfs-jdk1.7.0_79.txt
 |
| JDK v1.7.0_79  Test Results | 
https://builds.apache.org/job/PreCommit-HADOOP-Build/7963/testReport/ |
| asflicense | 
https://builds.apache.org/job/PreCommit-HADOOP-Build/7963/artifact/patchprocess/patch-asflicense-problems.txt
 |
| modules | C: hadoop-common-project/hadoop-common 
hadoop-hdfs-project/hadoop-hdfs hadoop-hdfs-project/hadoop-hdfs-client U: . |
| Max memory used | 225MB |
| Powered by | Apache Yetus   http://yetus.apache.org |
| Console output | 
https://builds.apache.org/job/PreCommit-HADOOP-Build/7963/console |


This message was automatically generated.



> Initialize output buffers with ZERO bytes in erasure coder
> ----------------------------------------------------------
>
>                 Key: HADOOP-12327
>                 URL: https://issues.apache.org/jira/browse/HADOOP-12327
>             Project: Hadoop Common
>          Issue Type: Sub-task
>            Reporter: Kai Zheng
>            Assignee: Kai Zheng
>             Fix For: HDFS-7285
>
>         Attachments: HADOOP-12327-HDFS-7285-v1.patch, HADOOP-12327-v2.patch
>
>
> Make sure output buffers are initialized with ZERO bytes in order for:
> * Coder callers won't have to bother doing that;
> * Avoid possible buggy codes if caller forgets doing that;
> * More efficiency, with a shared, length enough empty buffer allocated.



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