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From "Steve Loughran (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HADOOP-6200) glue together the different projects to make local builds easier
Date Tue, 25 Aug 2009 15:29:59 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-6200?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12747461#action_12747461
] 

Steve Loughran commented on HADOOP-6200:
----------------------------------------

Actually, it turns out to really be a cycle. the hadoop-hdfs.init target requires hadoop-mapred
to exist, because it unzips the webapps. 
    <unzip src="${lib.dir}/hadoop-mapred-${hadoop-mr.version}.jar"
        dest="${build.dir}">
      <patternset>
        <include name="webapps/**"/>
      </patternset>
    </unzip>

_you cannot build hdfs without mapred, you cannot build mapred without hdfs_
 Therefore, the graph of build dependencies is not technically acyclic.


> glue together the different projects to make local builds easier
> ----------------------------------------------------------------
>
>                 Key: HADOOP-6200
>                 URL: https://issues.apache.org/jira/browse/HADOOP-6200
>             Project: Hadoop Common
>          Issue Type: Bug
>          Components: build
>    Affects Versions: 0.21.0
>            Reporter: Steve Loughran
>            Priority: Minor
>
> It's currently fairly tricky to get everything building/up to date in a single machine.
We can and should improve this.

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