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https://issues.apache.org/jira/browse/MAPREDUCE-6244?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Tsuyoshi OZAWA updated MAPREDUCE-6244:
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Status: Open (was: Patch Available)
> Hadoop examples when run without an argument, gives ERROR instead of just
> usage info
> ------------------------------------------------------------------------------------
>
> Key: MAPREDUCE-6244
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-6244
> Project: Hadoop Map/Reduce
> Issue Type: Improvement
> Affects Versions: 2.6.0, 0.23.0, trunk-win
> Reporter: Robert Justice
> Assignee: Abhishek Kapoor
> Priority: Minor
> Attachments: HADOOP-8834.patch, HADOOP-8834.patch
>
>
> 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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