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From "Jakob Homan (JIRA)" <j...@apache.org>
Subject [jira] Updated: (HDFS-1456) Provide builder for constructing instances of MiniDFSCluster
Date Wed, 20 Oct 2010 22:58:24 GMT

     [ https://issues.apache.org/jira/browse/HDFS-1456?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Jakob Homan updated HDFS-1456:
------------------------------

    Attachment: HDFS-1456-for-1052-branch.patch

Patch merged with the 1052 branch to be committed there.  Same as trunk, just some lines didn't
merge cleanly.

> Provide builder for constructing instances of MiniDFSCluster
> ------------------------------------------------------------
>
>                 Key: HDFS-1456
>                 URL: https://issues.apache.org/jira/browse/HDFS-1456
>             Project: Hadoop HDFS
>          Issue Type: Improvement
>          Components: test
>    Affects Versions: 0.22.0
>            Reporter: Jakob Homan
>            Assignee: Jakob Homan
>             Fix For: 0.22.0
>
>         Attachments: HDFS-1456-2.patch, HDFS-1456-for-1052-branch.patch, HDFS-1456.patch
>
>
> Time to fix a broken window. Of the 293 occurences of "new MiniDFSCluster("... most look
something like:
> {noformat}cluster = new MiniDFSCluster(0, config, numDatanodes, true, false, true,  null,
null, null, null);{noformat}
> The largest constructor takes 10 parameters, and even the overloaded constructors can
be difficult to read as their mainaly nulls or booleans.
> We should provide a Builder for constructing MiniDFSClusters to improve readability.

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