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https://issues.apache.org/jira/browse/HDFS-6200?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14350684#comment-14350684
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Haohui Mai commented on HDFS-6200:
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bq. For one, we don't have to worry about what dependencies we bring with us in
the internal case because by definition we're in control of both the client
interface and the place it's being used.
bq. In the approach I'm suggesting the original code for the client would still
live in hadoop-hdfs, so the webhdfs server would be free to use on DFSClient.
If that is unappealing for some reason, perhaps we should structure things with
an internal client artifact. e.g.
What is the point of creating yet another internal jar if you can simply hide
{{DFSClient}} in local package?
> Create a separate jar for hdfs-client
> -------------------------------------
>
> Key: HDFS-6200
> URL: https://issues.apache.org/jira/browse/HDFS-6200
> Project: Hadoop HDFS
> Issue Type: Improvement
> Reporter: Haohui Mai
> Assignee: Haohui Mai
> Attachments: HDFS-6200.000.patch, HDFS-6200.001.patch,
> HDFS-6200.002.patch, HDFS-6200.003.patch, HDFS-6200.004.patch,
> HDFS-6200.005.patch, HDFS-6200.006.patch, HDFS-6200.007.patch
>
>
> Currently the hadoop-hdfs jar contain both the hdfs server and the hdfs
> client. As discussed in the hdfs-dev mailing list
> (http://mail-archives.apache.org/mod_mbox/hadoop-hdfs-dev/201404.mbox/browser),
> downstream projects are forced to bring in additional dependency in order to
> access hdfs. The additional dependency sometimes can be difficult to manage
> for projects like Apache Falcon and Apache Oozie.
> This jira proposes to create a new project, hadoop-hdfs-cliient, which
> contains the client side of the hdfs code. Downstream projects can use this
> jar instead of the hadoop-hdfs to avoid unnecessary dependency.
> Note that it does not break the compatibility of downstream projects. This is
> because old downstream projects implicitly depend on hadoop-hdfs-client
> through the hadoop-hdfs jar.
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