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From "Abhishek Kapoor (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HADOOP-8834) Hadoop examples when run without an argument, gives ERROR instead of just usage info
Date Tue, 19 Feb 2013 10:53:13 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-8834?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13581204#comment-13581204
] 

Abhishek Kapoor commented on HADOOP-8834:
-----------------------------------------

Since this is my first time fixing jira issue in open source. And this would easy to fix enhancment.
Could anyone please guide or mentor me in fixing process of the issue, for example which branch
i need to check out and how to create patch for the same. Also do i need a test case for this
minor issue.

Any help would be really appreciated and would lead me to know the process, so that I can
contribute more in the community.

Many Thanks
Abhishek

                
> Hadoop examples when run without an argument, gives ERROR instead of just usage info
> ------------------------------------------------------------------------------------
>
>                 Key: HADOOP-8834
>                 URL: https://issues.apache.org/jira/browse/HADOOP-8834
>             Project: Hadoop Common
>          Issue Type: Bug
>    Affects Versions: 0.23.0
>            Reporter: Robert Justice
>            Priority: Minor
>
> Hadoop sort example should not give an ERROR and only should display usage when run with
no parameters. 
> {code}
> $ hadoop jar /usr/lib/hadoop-mapreduce/hadoop-mapreduce-examples.jar sort
> ERROR: Wrong number of parameters: 0 instead of 2.
> sort [-m <maps>] [-r <reduces>] [-inFormat <input format class>] [-outFormat
<output format class>] [-outKey <output key class>] [-outValue <output value
class>] [-totalOrder <pcnt> <num samples> <max splits>] <input>
<output>
> Generic options supported are
> -conf <configuration file>     specify an application configuration file
> -D <property=value>            use value for given property
> -fs <local|namenode:port>      specify a namenode
> -jt <local|jobtracker:port>    specify a job tracker
> -files <comma separated list of files>    specify comma separated files to be copied
to the map reduce cluster
> -libjars <comma separated list of jars>    specify comma separated jar files to
include in the classpath.
> -archives <comma separated list of archives>    specify comma separated archives
to be unarchived on the compute machines.
> The general command line syntax is
> bin/hadoop command [genericOptions] [commandOptions]
> {code}

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