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From "Allen Wittenauer (JIRA)" <j...@apache.org>
Subject [jira] [Resolved] (HADOOP-4611) Documentation for Tool interface is a bit busted
Date Sat, 19 Jul 2014 00:06:39 GMT

     [ https://issues.apache.org/jira/browse/HADOOP-4611?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Allen Wittenauer resolved HADOOP-4611.
--------------------------------------

    Resolution: Not a Problem

Tool is still broken, but for different reasons. I'll file a different jira for that.

> Documentation for Tool interface is a bit busted
> ------------------------------------------------
>
>                 Key: HADOOP-4611
>                 URL: https://issues.apache.org/jira/browse/HADOOP-4611
>             Project: Hadoop Common
>          Issue Type: Bug
>          Components: documentation, util
>            Reporter: Jeff Hammerbacher
>            Priority: Minor
>              Labels: newbie
>
> The documentation for the Tool interface will not work out of the box. It seems to have
taken the Sort() implementation in examples, but has ripped out some important information.
> 1) args[1] and args[2] should probably be args[0] and args[1], as most MapReduce tasks
don't take the first argument that examples.jar takes
> 2) int run() needs to actually return an int
> 3) JobConf.setInputPath() and JobConf.setOutputPath() are deprecated.
> 4) the call to ToolRunner.run() in main() should take "new MyApp()" instead of "Sort()"
as an argument
> More generally, a working implementation of Tool in the docs would be handy.



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