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https://issues.apache.org/jira/browse/MAPREDUCE-3378?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13173747#comment-13173747
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Tom White commented on MAPREDUCE-3378:
--------------------------------------

Scott, thanks for the great feedback! To summarize, we should do the following 
(highest priority first):

1. Make sure that the transitive dependencies are correct for the artifacts 
that we publish.
2. Publish client API JARs and document how to use them.
3. Possibly publish a 'fat jar' for all of Hadoop, but it should have a 
different classifier.

Currently in 0.23 the situation for 2 is that hadoop-mapreduce-client-core 
contains the API, hadoop-mapreduce-client-common contains the local job runner, 
and hadoop-mapreduce-client-jobclient contains the YARN client, but they all 
pull in too many dependencies (1). I've just noticed that 
hadoop-mapreduce-client-core depends on HDFS classes, which isn't right.
                
> Create a single 'hadoop-mapreduce' Maven artifact
> -------------------------------------------------
>
>                 Key: MAPREDUCE-3378
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-3378
>             Project: Hadoop Map/Reduce
>          Issue Type: Improvement
>          Components: build
>    Affects Versions: 0.23.0
>            Reporter: Tom White
>         Attachments: MAPREDUCE-3378.patch
>
>
> In 0.23.0 there are multiple artifacts (hadoop-mapreduce-client-app, 
> hadoop-mapreduce-client-common, hadoop-mapreduce-client-core, etc). It would 
> be simpler for users to declare a dependency on hadoop-mapreduce (much like 
> there's hadoop-common and hadoop-hdfs). (This would also be a step towards 
> MAPREDUCE-2600.)

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