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From "Steve Loughran (Commented) (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-2415) Move MiniDFS out of test JAR and into the main hadoop-hdfs JAR
Date Mon, 21 Nov 2011 10:40:52 GMT

    [ https://issues.apache.org/jira/browse/HDFS-2415?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13154107#comment-13154107

Steve Loughran commented on HDFS-2415:

# if the test jar includes log4j.properties it causes problems downstream
# putting it in the main jar formalises its existence as a stable tool for external use. Which
I think it should be, though you may disagree. 

The key point is that these mini clusters are ideal for downstream testing, as well as in-Hadoop.
> Move MiniDFS out of test JAR and into the main hadoop-hdfs JAR
> --------------------------------------------------------------
>                 Key: HDFS-2415
>                 URL: https://issues.apache.org/jira/browse/HDFS-2415
>             Project: Hadoop HDFS
>          Issue Type: Improvement
>          Components: test
>            Reporter: Steve Loughran
>            Priority: Minor
> This is just an idea: move the MiniDFS cluster out of the Hadoop test JAR and into the
main redistributable.
> This would make it easier for people downstream to use it. It is the easiest way to bring
up a DFS cluster in a single JVM, and with the MiniMR cluster is a common way to test MR jobs
in the IDE against small datasets. 
> Moving the file while keeping the package name should not cause any problems; all it
will do is make applying outstanding patches to it slightly harder. 

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