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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 Thu, 19 May 2016 18:30:13 GMT

    [ https://issues.apache.org/jira/browse/MAPREDUCE-6696?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15291885#comment-15291885
] 

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 11s {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} 0m 9s {color} | {color:blue}
Maven dependency ordering for branch {color} |
| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green} 7m 18s {color}
| {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green} 1m 44s {color} |
{color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} checkstyle {color} | {color:green} 0m 35s {color}
| {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} mvnsite {color} | {color:green} 1m 0s {color} | {color:green}
trunk passed {color} |
| {color:green}+1{color} | {color:green} mvneclipse {color} | {color:green} 0m 24s {color}
| {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} findbugs {color} | {color:green} 1m 21s {color} |
{color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green} 0m 35s {color} |
{color:green} trunk passed {color} |
| {color:blue}0{color} | {color:blue} mvndep {color} | {color:blue} 0m 9s {color} | {color:blue}
Maven dependency ordering for patch {color} |
| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green} 0m 49s {color}
| {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green} 1m 44s {color} |
{color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} javac {color} | {color:green} 1m 44s {color} | {color:green}
the patch passed {color} |
| {color:red}-1{color} | {color:red} checkstyle {color} | {color:red} 0m 33s {color} | {color:red}
hadoop-mapreduce-project/hadoop-mapreduce-client: patch generated 2 new + 539 unchanged -
1 fixed = 541 total (was 540) {color} |
| {color:green}+1{color} | {color:green} mvnsite {color} | {color:green} 0m 48s {color} |
{color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} mvneclipse {color} | {color:green} 0m 19s {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 2s {color} | {color:green}
The patch has no ill-formed XML file. {color} |
| {color:green}+1{color} | {color:green} findbugs {color} | {color:green} 1m 29s {color} |
{color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green} 0m 32s {color} |
{color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} unit {color} | {color:green} 2m 11s {color} | {color:green}
hadoop-mapreduce-client-core in the patch passed. {color} |
| {color:red}-1{color} | {color:red} unit {color} | {color:red} 106m 10s {color} | {color:red}
hadoop-mapreduce-client-jobclient in the patch failed. {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} 129m 16s {color} | {color:black}
{color} |
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|| Reason || Tests ||
| Failed junit tests | hadoop.mapred.TestMiniMRChildTask |
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|| Subsystem || Report/Notes ||
| Docker |  Image:yetus/hadoop:2c91fd8 |
| JIRA Patch URL | https://issues.apache.org/jira/secure/attachment/12804964/MAPREDUCE-6696.004.patch
|
| JIRA Issue | MAPREDUCE-6696 |
| Optional Tests |  asflicense  compile  javac  javadoc  mvninstall  mvnsite  unit  findbugs
 checkstyle  xml  |
| uname | Linux d5321a7ae7f0 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 / 141873c |
| Default Java | 1.8.0_91 |
| findbugs | v3.0.0 |
| checkstyle | https://builds.apache.org/job/PreCommit-MAPREDUCE-Build/6514/artifact/patchprocess/diff-checkstyle-hadoop-mapreduce-project_hadoop-mapreduce-client.txt
|
| unit | https://builds.apache.org/job/PreCommit-MAPREDUCE-Build/6514/artifact/patchprocess/patch-unit-hadoop-mapreduce-project_hadoop-mapreduce-client_hadoop-mapreduce-client-jobclient.txt
|
| unit test logs |  https://builds.apache.org/job/PreCommit-MAPREDUCE-Build/6514/artifact/patchprocess/patch-unit-hadoop-mapreduce-project_hadoop-mapreduce-client_hadoop-mapreduce-client-jobclient.txt
|
|  Test Results | https://builds.apache.org/job/PreCommit-MAPREDUCE-Build/6514/testReport/
|
| 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
|
| Console output | https://builds.apache.org/job/PreCommit-MAPREDUCE-Build/6514/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, MAPREDUCE-6696.002.patch,
MAPREDUCE-6696.003.patch, MAPREDUCE-6696.004.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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