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From "Hadoop QA (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HADOOP-12730) Hadoop streaming -mapper and -reducer options are wrongly documented as required
Date Fri, 22 Jan 2016 12:11:39 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-12730?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15112350#comment-15112350
] 

Hadoop QA commented on HADOOP-12730:
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| (/) *{color:green}+1 overall{color}* |
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|| Vote || Subsystem || Runtime || Comment ||
| {color:blue}0{color} | {color:blue} reexec {color} | {color:blue} 0m 0s {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} mvnsite {color} | {color:green} 1m 10s {color} |
{color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} mvnsite {color} | {color:green} 0m 20s {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} asflicense {color} | {color:green} 0m 27s {color}
| {color:green} Patch does not generate ASF License warnings. {color} |
| {color:black}{color} | {color:black} {color} | {color:black} 2m 19s {color} | {color:black}
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|| Subsystem || Report/Notes ||
| Docker |  Image:yetus/hadoop:0ca8df7 |
| JIRA Patch URL | https://issues.apache.org/jira/secure/attachment/12732588/MAPREDUCE-6200.001.patch
|
| JIRA Issue | HADOOP-12730 |
| Optional Tests |  asflicense  mvnsite  |
| uname | Linux f2610bd53349 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 / 6831634 |
| modules | C: hadoop-tools/hadoop-streaming U: hadoop-tools/hadoop-streaming |
| Max memory used | 29MB |
| Powered by | Apache Yetus 0.2.0-SNAPSHOT   http://yetus.apache.org |
| Console output | https://builds.apache.org/job/PreCommit-HADOOP-Build/8449/console |


This message was automatically generated.



> Hadoop streaming -mapper and -reducer options are wrongly documented as required
> --------------------------------------------------------------------------------
>
>                 Key: HADOOP-12730
>                 URL: https://issues.apache.org/jira/browse/HADOOP-12730
>             Project: Hadoop Common
>          Issue Type: Bug
>          Components: documentation
>            Reporter: DeepakVohra
>            Assignee: Kengo Seki
>              Labels: newbie, streaming
>         Attachments: MAPREDUCE-6200.001.patch
>
>
> -reducer is listed as a Required option, but is a -reducer still required if the Streaming
job is Map only?
> http://hadoop.apache.org/docs/r1.2.1/streaming.html#Specifying+Map-Only+Jobs
> -reducer should not be listed as a Required option. 



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