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https://issues.apache.org/jira/browse/HADOOP-13192?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15337573#comment-15337573
 ] 

Hadoop QA commented on HADOOP-13192:
------------------------------------

| (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 
28s{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 1 new or modified test 
files. {color} |
| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green}  8m 
20s{color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green}  8m 
51s{color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} checkstyle {color} | {color:green}  0m 
27s{color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} mvnsite {color} | {color:green}  1m  
8s{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}  1m 
35s{color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green}  0m 
54s{color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green}  0m 
47s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green}  8m 
28s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} javac {color} | {color:green}  8m 
28s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} checkstyle {color} | {color:green}  0m 
28s{color} | {color:green} hadoop-common-project/hadoop-common: The patch 
generated 0 new + 17 unchanged - 12 fixed = 17 total (was 29) {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 
13s{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}  1m 
42s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green}  0m 
46s{color} | {color:green} the patch passed {color} |
| {color:red}-1{color} | {color:red} unit {color} | {color:red}  7m 45s{color} 
| {color:red} hadoop-common in the patch failed. {color} |
| {color:green}+1{color} | {color:green} asflicense {color} | {color:green}  0m 
25s{color} | {color:green} The patch does not generate ASF License warnings. 
{color} |
| {color:black}{color} | {color:black} {color} | {color:black} 44m 16s{color} | 
{color:black} {color} |
\\
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|| Reason || Tests ||
| Failed junit tests | hadoop.metrics2.impl.TestGangliaMetrics |
\\
\\
|| Subsystem || Report/Notes ||
| Docker |  Image:yetus/hadoop:e2f6409 |
| JIRA Issue | HADOOP-13192 |
| GITHUB PR | https://github.com/apache/hadoop/pull/99 |
| Optional Tests |  asflicense  compile  javac  javadoc  mvninstall  mvnsite  
unit  findbugs  checkstyle  |
| uname | Linux cb8ca8844db9 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 / 0761379 |
| Default Java | 1.8.0_91 |
| findbugs | v3.0.0 |
| unit | 
https://builds.apache.org/job/PreCommit-HADOOP-Build/9823/artifact/patchprocess/patch-unit-hadoop-common-project_hadoop-common.txt
 |
|  Test Results | 
https://builds.apache.org/job/PreCommit-HADOOP-Build/9823/testReport/ |
| modules | C: hadoop-common-project/hadoop-common U: 
hadoop-common-project/hadoop-common |
| Console output | 
https://builds.apache.org/job/PreCommit-HADOOP-Build/9823/console |
| Powered by | Apache Yetus 0.4.0-SNAPSHOT   http://yetus.apache.org |


This message was automatically generated.



> org.apache.hadoop.util.LineReader  match recordDelimiter has a bug
> ------------------------------------------------------------------
>
>                 Key: HADOOP-13192
>                 URL: https://issues.apache.org/jira/browse/HADOOP-13192
>             Project: Hadoop Common
>          Issue Type: Bug
>          Components: util
>    Affects Versions: 2.6.2
>            Reporter: binde
>            Assignee: binde
>         Attachments: 
> 0001-HADOOP-13192-org.apache.hadoop.util.LineReader-match.patch, 
> 0002-fix-bug-hadoop-1392-add-test-case-for-LineReader.patch
>
>   Original Estimate: 5m
>  Remaining Estimate: 5m
>
> org.apache.hadoop.util.LineReader.readCustomLine()  has a bug,
> when line is   aaaabccc, recordDelimiter is aaab, the result should be a,ccc,
> show the code on line 310:
>       for (; bufferPosn < bufferLength; ++bufferPosn) {
>         if (buffer[bufferPosn] == recordDelimiterBytes[delPosn]) {
>           delPosn++;
>           if (delPosn >= recordDelimiterBytes.length) {
>             bufferPosn++;
>             break;
>           }
>         } else if (delPosn != 0) {
>           bufferPosn--;
>           delPosn = 0;
>         }
>       }
> shoud be :
>       for (; bufferPosn < bufferLength; ++bufferPosn) {
>         if (buffer[bufferPosn] == recordDelimiterBytes[delPosn]) {
>           delPosn++;
>           if (delPosn >= recordDelimiterBytes.length) {
>             bufferPosn++;
>             break;
>           }
>         } else if (delPosn != 0) {
>          // ------------- change here ------------- start ----
>           bufferPosn -= delPosn;
>          // ------------- change here ------------- end ----
>   
>           delPosn = 0;
>         }
>       }



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