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From "Hadoop QA (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (MAPREDUCE-6696) Add a configuration to limit the number of map tasks allowed per job.
Date Tue, 17 May 2016 01:17:12 GMT

    [ https://issues.apache.org/jira/browse/MAPREDUCE-6696?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15285802#comment-15285802
] 

Hadoop QA commented on MAPREDUCE-6696:
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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} 0m 13s {color} | {color:blue}
Docker mode activated. {color} |
| {color:green}+1{color} | {color:green} @author {color} | {color:green} 0m 1s {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} 0m 22s {color} | {color:blue}
Maven dependency ordering for branch {color} |
| {color:red}-1{color} | {color:red} mvninstall {color} | {color:red} 0m 8s {color} | {color:red}
root in trunk failed. {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green} 2m 1s {color} | {color:green}
trunk passed with JDK v1.8.0_91 {color} |
| {color:red}-1{color} | {color:red} compile {color} | {color:red} 0m 12s {color} | {color:red}
hadoop-mapreduce-client in trunk failed with JDK v1.7.0_101. {color} |
| {color:green}+1{color} | {color:green} checkstyle {color} | {color:green} 0m 40s {color}
| {color:green} trunk passed {color} |
| {color:red}-1{color} | {color:red} mvnsite {color} | {color:red} 0m 12s {color} | {color:red}
hadoop-mapreduce-client-core in trunk failed. {color} |
| {color:red}-1{color} | {color:red} mvnsite {color} | {color:red} 0m 12s {color} | {color:red}
hadoop-mapreduce-client-jobclient in trunk failed. {color} |
| {color:green}+1{color} | {color:green} mvneclipse {color} | {color:green} 0m 24s {color}
| {color:green} trunk passed {color} |
| {color:red}-1{color} | {color:red} findbugs {color} | {color:red} 0m 10s {color} | {color:red}
hadoop-mapreduce-client-core in trunk failed. {color} |
| {color:red}-1{color} | {color:red} findbugs {color} | {color:red} 0m 10s {color} | {color:red}
hadoop-mapreduce-client-jobclient in trunk failed. {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green} 0m 33s {color} |
{color:green} trunk passed with JDK v1.8.0_91 {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green} 0m 36s {color} |
{color:green} trunk passed with JDK v1.7.0_101 {color} |
| {color:blue}0{color} | {color:blue} mvndep {color} | {color:blue} 0m 10s {color} | {color:blue}
Maven dependency ordering for patch {color} |
| {color:red}-1{color} | {color:red} mvninstall {color} | {color:red} 0m 10s {color} | {color:red}
hadoop-mapreduce-client-core in the patch failed. {color} |
| {color:red}-1{color} | {color:red} mvninstall {color} | {color:red} 0m 9s {color} | {color:red}
hadoop-mapreduce-client-jobclient in the patch failed. {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green} 1m 54s {color} |
{color:green} the patch passed with JDK v1.8.0_91 {color} |
| {color:green}+1{color} | {color:green} javac {color} | {color:green} 1m 54s {color} | {color:green}
the patch passed {color} |
| {color:red}-1{color} | {color:red} compile {color} | {color:red} 0m 11s {color} | {color:red}
hadoop-mapreduce-client in the patch failed with JDK v1.7.0_101. {color} |
| {color:red}-1{color} | {color:red} javac {color} | {color:red} 0m 11s {color} | {color:red}
hadoop-mapreduce-client in the patch failed with JDK v1.7.0_101. {color} |
| {color:red}-1{color} | {color:red} checkstyle {color} | {color:red} 0m 35s {color} | {color:red}
hadoop-mapreduce-project/hadoop-mapreduce-client: patch generated 2 new + 539 unchanged -
1 fixed = 541 total (was 540) {color} |
| {color:red}-1{color} | {color:red} mvnsite {color} | {color:red} 0m 12s {color} | {color:red}
hadoop-mapreduce-client-core in the patch failed. {color} |
| {color:red}-1{color} | {color:red} mvnsite {color} | {color:red} 0m 12s {color} | {color:red}
hadoop-mapreduce-client-jobclient in the patch failed. {color} |
| {color:green}+1{color} | {color:green} mvneclipse {color} | {color:green} 0m 25s {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} xml {color} | {color:green} 0m 0s {color} | {color:green}
The patch has no ill-formed XML file. {color} |
| {color:red}-1{color} | {color:red} findbugs {color} | {color:red} 0m 10s {color} | {color:red}
hadoop-mapreduce-client-core in the patch failed. {color} |
| {color:red}-1{color} | {color:red} findbugs {color} | {color:red} 0m 10s {color} | {color:red}
hadoop-mapreduce-client-jobclient in the patch failed. {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green} 0m 33s {color} |
{color:green} the patch passed with JDK v1.8.0_91 {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green} 0m 37s {color} |
{color:green} the patch passed with JDK v1.7.0_101 {color} |
| {color:green}+1{color} | {color:green} unit {color} | {color:green} 2m 4s {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} 0m 19s {color} | {color:red}
hadoop-mapreduce-client-jobclient in the patch failed with JDK v1.8.0_91. {color} |
| {color:red}-1{color} | {color:red} unit {color} | {color:red} 0m 10s {color} | {color:red}
hadoop-mapreduce-client-core in the patch failed with JDK v1.7.0_101. {color} |
| {color:red}-1{color} | {color:red} unit {color} | {color:red} 0m 10s {color} | {color:red}
hadoop-mapreduce-client-jobclient in the patch failed with JDK v1.7.0_101. {color} |
| {color:green}+1{color} | {color:green} asflicense {color} | {color:green} 0m 35s {color}
| {color:green} Patch does not generate ASF License warnings. {color} |
| {color:black}{color} | {color:black} {color} | {color:black} 15m 29s {color} | {color:black}
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|| Subsystem || Report/Notes ||
| Docker |  Image:yetus/hadoop:cf2ee45 |
| JIRA Patch URL | https://issues.apache.org/jira/secure/attachment/12804303/MAPREDUCE-6696.001.patch
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| JIRA Issue | MAPREDUCE-6696 |
| Optional Tests |  asflicense  compile  javac  javadoc  mvninstall  mvnsite  unit  findbugs
 checkstyle  xml  |
| uname | Linux 107d463c67f0 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 / 730bc74 |
| 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
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| mvninstall | https://builds.apache.org/job/PreCommit-MAPREDUCE-Build/6504/artifact/patchprocess/branch-mvninstall-root.txt
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| compile | https://builds.apache.org/job/PreCommit-MAPREDUCE-Build/6504/artifact/patchprocess/branch-compile-hadoop-mapreduce-project_hadoop-mapreduce-client-jdk1.7.0_101.txt
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| mvnsite | https://builds.apache.org/job/PreCommit-MAPREDUCE-Build/6504/artifact/patchprocess/branch-mvnsite-hadoop-mapreduce-project_hadoop-mapreduce-client_hadoop-mapreduce-client-core.txt
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| mvnsite | https://builds.apache.org/job/PreCommit-MAPREDUCE-Build/6504/artifact/patchprocess/branch-mvnsite-hadoop-mapreduce-project_hadoop-mapreduce-client_hadoop-mapreduce-client-jobclient.txt
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| findbugs | https://builds.apache.org/job/PreCommit-MAPREDUCE-Build/6504/artifact/patchprocess/branch-findbugs-hadoop-mapreduce-project_hadoop-mapreduce-client_hadoop-mapreduce-client-core.txt
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| findbugs | https://builds.apache.org/job/PreCommit-MAPREDUCE-Build/6504/artifact/patchprocess/branch-findbugs-hadoop-mapreduce-project_hadoop-mapreduce-client_hadoop-mapreduce-client-jobclient.txt
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| mvninstall | https://builds.apache.org/job/PreCommit-MAPREDUCE-Build/6504/artifact/patchprocess/patch-mvninstall-hadoop-mapreduce-project_hadoop-mapreduce-client_hadoop-mapreduce-client-core.txt
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| mvninstall | https://builds.apache.org/job/PreCommit-MAPREDUCE-Build/6504/artifact/patchprocess/patch-mvninstall-hadoop-mapreduce-project_hadoop-mapreduce-client_hadoop-mapreduce-client-jobclient.txt
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| compile | https://builds.apache.org/job/PreCommit-MAPREDUCE-Build/6504/artifact/patchprocess/patch-compile-hadoop-mapreduce-project_hadoop-mapreduce-client-jdk1.7.0_101.txt
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| javac | https://builds.apache.org/job/PreCommit-MAPREDUCE-Build/6504/artifact/patchprocess/patch-compile-hadoop-mapreduce-project_hadoop-mapreduce-client-jdk1.7.0_101.txt
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| checkstyle | https://builds.apache.org/job/PreCommit-MAPREDUCE-Build/6504/artifact/patchprocess/diff-checkstyle-hadoop-mapreduce-project_hadoop-mapreduce-client.txt
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| mvnsite | https://builds.apache.org/job/PreCommit-MAPREDUCE-Build/6504/artifact/patchprocess/patch-mvnsite-hadoop-mapreduce-project_hadoop-mapreduce-client_hadoop-mapreduce-client-core.txt
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| mvnsite | https://builds.apache.org/job/PreCommit-MAPREDUCE-Build/6504/artifact/patchprocess/patch-mvnsite-hadoop-mapreduce-project_hadoop-mapreduce-client_hadoop-mapreduce-client-jobclient.txt
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| findbugs | https://builds.apache.org/job/PreCommit-MAPREDUCE-Build/6504/artifact/patchprocess/patch-findbugs-hadoop-mapreduce-project_hadoop-mapreduce-client_hadoop-mapreduce-client-core.txt
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| findbugs | https://builds.apache.org/job/PreCommit-MAPREDUCE-Build/6504/artifact/patchprocess/patch-findbugs-hadoop-mapreduce-project_hadoop-mapreduce-client_hadoop-mapreduce-client-jobclient.txt
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| unit | https://builds.apache.org/job/PreCommit-MAPREDUCE-Build/6504/artifact/patchprocess/patch-unit-hadoop-mapreduce-project_hadoop-mapreduce-client_hadoop-mapreduce-client-jobclient-jdk1.8.0_91.txt
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| unit | https://builds.apache.org/job/PreCommit-MAPREDUCE-Build/6504/artifact/patchprocess/patch-unit-hadoop-mapreduce-project_hadoop-mapreduce-client_hadoop-mapreduce-client-core-jdk1.7.0_101.txt
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| unit | https://builds.apache.org/job/PreCommit-MAPREDUCE-Build/6504/artifact/patchprocess/patch-unit-hadoop-mapreduce-project_hadoop-mapreduce-client_hadoop-mapreduce-client-jobclient-jdk1.7.0_101.txt
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| JDK v1.7.0_101  Test Results | https://builds.apache.org/job/PreCommit-MAPREDUCE-Build/6504/testReport/
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| modules | C:  hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-core
  hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-jobclient  U: hadoop-mapreduce-project/hadoop-mapreduce-client
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| Console output | https://builds.apache.org/job/PreCommit-MAPREDUCE-Build/6504/console |
| Powered by | Apache Yetus 0.2.0   http://yetus.apache.org |


This message was automatically generated.



> Add a configuration to limit the number of map tasks allowed per job.
> ---------------------------------------------------------------------
>
>                 Key: MAPREDUCE-6696
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-6696
>             Project: Hadoop Map/Reduce
>          Issue Type: Improvement
>          Components: job submission
>    Affects Versions: 2.8.0
>            Reporter: zhihai xu
>            Assignee: zhihai xu
>         Attachments: MAPREDUCE-6696.000.patch, MAPREDUCE-6696.001.patch
>
>
> Add a configuration "mapreduce.job.max.map" to limit the number of map tasks allowed
per job. It will be useful for Hadoop admin to save Hadoop cluster resource by preventing
users from submitting big mapreduce jobs. A mapredeuce job with too many mappers may fail
with OOM after running for long time. It will be a big waste.



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