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https://issues.apache.org/jira/browse/MAPREDUCE-6542?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15351338#comment-15351338
 ] 

Hadoop QA commented on MAPREDUCE-6542:
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| (x) *{color:red}-1 overall{color}* |
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|| Vote || Subsystem || Runtime || Comment ||
| {color:blue}0{color} | {color:blue} reexec {color} | {color:blue} 12m 16s 
{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:blue}0{color} | {color:blue} mvndep {color} | {color:blue} 2m 4s 
{color} | {color:blue} Maven dependency ordering for branch {color} |
| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green} 6m 
53s {color} | {color:green} branch-2.8 passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green} 5m 50s 
{color} | {color:green} branch-2.8 passed with JDK v1.8.0_91 {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green} 6m 43s 
{color} | {color:green} branch-2.8 passed with JDK v1.7.0_101 {color} |
| {color:green}+1{color} | {color:green} checkstyle {color} | {color:green} 1m 
10s {color} | {color:green} branch-2.8 passed {color} |
| {color:green}+1{color} | {color:green} mvnsite {color} | {color:green} 1m 31s 
{color} | {color:green} branch-2.8 passed {color} |
| {color:green}+1{color} | {color:green} mvneclipse {color} | {color:green} 0m 
35s {color} | {color:green} branch-2.8 passed {color} |
| {color:green}+1{color} | {color:green} findbugs {color} | {color:green} 2m 
46s {color} | {color:green} branch-2.8 passed {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green} 1m 7s 
{color} | {color:green} branch-2.8 passed with JDK v1.8.0_91 {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green} 1m 21s 
{color} | {color:green} branch-2.8 passed with JDK v1.7.0_101 {color} |
| {color:blue}0{color} | {color:blue} mvndep {color} | {color:blue} 0m 13s 
{color} | {color:blue} Maven dependency ordering for patch {color} |
| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green} 1m 
7s {color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green} 5m 46s 
{color} | {color:green} the patch passed with JDK v1.8.0_91 {color} |
| {color:green}+1{color} | {color:green} javac {color} | {color:green} 5m 46s 
{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green} 6m 45s 
{color} | {color:green} the patch passed with JDK v1.7.0_101 {color} |
| {color:green}+1{color} | {color:green} javac {color} | {color:green} 6m 45s 
{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} checkstyle {color} | {color:green} 1m 
6s {color} | {color:green} root: The patch generated 0 new + 294 unchanged - 3 
fixed = 294 total (was 297) {color} |
| {color:green}+1{color} | {color:green} mvnsite {color} | {color:green} 1m 29s 
{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} mvneclipse {color} | {color:green} 0m 
31s {color} | {color:green} the patch passed {color} |
| {color:red}-1{color} | {color:red} whitespace {color} | {color:red} 0m 0s 
{color} | {color:red} The patch has 49 line(s) that end in whitespace. Use git 
apply --whitespace=fix. {color} |
| {color:green}+1{color} | {color:green} findbugs {color} | {color:green} 3m 8s 
{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green} 1m 5s 
{color} | {color:green} the patch passed with JDK v1.8.0_91 {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green} 1m 20s 
{color} | {color:green} the patch passed with JDK v1.7.0_101 {color} |
| {color:red}-1{color} | {color:red} unit {color} | {color:red} 7m 25s {color} 
| {color:red} hadoop-common in the patch failed with JDK v1.8.0_91. {color} |
| {color:green}+1{color} | {color:green} unit {color} | {color:green} 1m 52s 
{color} | {color:green} hadoop-mapreduce-client-core in the patch passed with 
JDK v1.8.0_91. {color} |
| {color:red}-1{color} | {color:red} unit {color} | {color:red} 8m 5s {color} | 
{color:red} hadoop-common in the patch failed with JDK v1.7.0_101. {color} |
| {color:green}+1{color} | {color:green} unit {color} | {color:green} 2m 14s 
{color} | {color:green} hadoop-mapreduce-client-core in the patch passed with 
JDK v1.7.0_101. {color} |
| {color:green}+1{color} | {color:green} asflicense {color} | {color:green} 0m 
22s {color} | {color:green} The patch does not generate ASF License warnings. 
{color} |
| {color:black}{color} | {color:black} {color} | {color:black} 86m 12s {color} 
| {color:black} {color} |
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|| Reason || Tests ||
| JDK v1.8.0_91 Failed junit tests | hadoop.metrics2.impl.TestGangliaMetrics |
| JDK v1.7.0_101 Failed junit tests | hadoop.metrics2.impl.TestGangliaMetrics |
|   | hadoop.ipc.TestRPCWaitForProxy |
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|| Subsystem || Report/Notes ||
| Docker |  Image:yetus/hadoop:5af2af1 |
| JIRA Patch URL | 
https://issues.apache.org/jira/secure/attachment/12812987/MAPREDUCE-6542-branch-2.8-v2.patch
 |
| JIRA Issue | MAPREDUCE-6542 |
| Optional Tests |  asflicense  compile  javac  javadoc  mvninstall  mvnsite  
unit  findbugs  checkstyle  |
| uname | Linux bf9877c7b2b7 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 | branch-2.8 / ce788c2 |
| Default Java | 1.7.0_101 |
| Multi-JDK versions |  /usr/lib/jvm/java-8-oracle:1.8.0_91 
/usr/lib/jvm/java-7-openjdk-amd64:1.7.0_101 |
| findbugs | v3.0.0 |
| whitespace | 
https://builds.apache.org/job/PreCommit-MAPREDUCE-Build/6588/artifact/patchprocess/whitespace-eol.txt
 |
| unit | 
https://builds.apache.org/job/PreCommit-MAPREDUCE-Build/6588/artifact/patchprocess/patch-unit-hadoop-common-project_hadoop-common-jdk1.8.0_91.txt
 |
| unit | 
https://builds.apache.org/job/PreCommit-MAPREDUCE-Build/6588/artifact/patchprocess/patch-unit-hadoop-common-project_hadoop-common-jdk1.7.0_101.txt
 |
| unit test logs |  
https://builds.apache.org/job/PreCommit-MAPREDUCE-Build/6588/artifact/patchprocess/patch-unit-hadoop-common-project_hadoop-common-jdk1.8.0_91.txt
 
https://builds.apache.org/job/PreCommit-MAPREDUCE-Build/6588/artifact/patchprocess/patch-unit-hadoop-common-project_hadoop-common-jdk1.7.0_101.txt
 |
| JDK v1.7.0_101  Test Results | 
https://builds.apache.org/job/PreCommit-MAPREDUCE-Build/6588/testReport/ |
| modules | C: hadoop-common-project/hadoop-common 
hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-core 
U: . |
| Console output | 
https://builds.apache.org/job/PreCommit-MAPREDUCE-Build/6588/console |
| Powered by | Apache Yetus 0.3.0   http://yetus.apache.org |


This message was automatically generated.



> HistoryViewer uses SimpleDateFormat, but SimpleDateFormat is not threadsafe
> ---------------------------------------------------------------------------
>
>                 Key: MAPREDUCE-6542
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-6542
>             Project: Hadoop Map/Reduce
>          Issue Type: Bug
>          Components: jobhistoryserver
>    Affects Versions: 2.2.0, 2.7.1
>         Environment: CentOS6.5 Hadoop  
>            Reporter: zhangyubiao
>            Assignee: zhangyubiao
>             Fix For: 2.9.0
>
>         Attachments: MAPREDUCE-6542-branch-2.8-v1.patch, 
> MAPREDUCE-6542-branch-2.8-v2.patch, MAPREDUCE-6542-branch-2.8.patch, 
> MAPREDUCE-6542-v10.patch, MAPREDUCE-6542-v11.patch, MAPREDUCE-6542-v12.patch, 
> MAPREDUCE-6542-v13.patch, MAPREDUCE-6542-v14.patch, MAPREDUCE-6542-v15.patch, 
> MAPREDUCE-6542-v16.patch, MAPREDUCE-6542-v2.patch, MAPREDUCE-6542-v3.patch, 
> MAPREDUCE-6542-v4.patch, MAPREDUCE-6542-v5.patch, MAPREDUCE-6542-v6.patch, 
> MAPREDUCE-6542-v7.patch, MAPREDUCE-6542-v8.patch, MAPREDUCE-6542-v9.patch, 
> MAPREDUCE-6542.patch
>
>
> I use SimpleDateFormat to Parse the JobHistory File before 
> {code}
> private static final SimpleDateFormat dateFormat =
>     new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
>  public static String getJobDetail(JobInfo job) {
>         StringBuffer jobDetails = new StringBuffer("");
>         SummarizedJob ts = new SummarizedJob(job);
>         jobDetails.append(job.getJobId().toString().trim()).append("\t");
>         jobDetails.append(job.getUsername()).append("\t");
>         jobDetails.append(job.getJobname().replaceAll("\\n", 
> "")).append("\t");
>         jobDetails.append(job.getJobQueueName()).append("\t");
>         jobDetails.append(job.getPriority()).append("\t");
>         jobDetails.append(job.getJobConfPath()).append("\t");
>         jobDetails.append(job.getUberized()).append("\t");
>         
> jobDetails.append(dateFormat.format(job.getSubmitTime())).append("\t");
>         
> jobDetails.append(dateFormat.format(job.getLaunchTime())).append("\t");
>         
> jobDetails.append(dateFormat.format(job.getFinishTime())).append("\t");
>        return jobDetails.toString();
> }
> {code}
> But I find I query the SubmitTime and LaunchTime in hive and compare 
> JobHistory File time , I find that the submitTime  and launchTime was wrong.
> Finally,I change to use the FastDateFormat to parse the time format and the 
> time become right



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