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From "Todd Lipcon (Commented) (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-2591) HA: MiniDFSCluster support to mix and match federation with HA
Date Thu, 24 Nov 2011 05:25:39 GMT

    [ https://issues.apache.org/jira/browse/HDFS-2591?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13156539#comment-13156539

Todd Lipcon commented on HDFS-2591:

(this is still a work in progress - testing it by updating the latest HDFS-1975 patch to run
on top of this infrastructure, and identifying a few missing pieces)
> HA: MiniDFSCluster support to mix and match federation with HA
> --------------------------------------------------------------
>                 Key: HDFS-2591
>                 URL: https://issues.apache.org/jira/browse/HDFS-2591
>             Project: Hadoop HDFS
>          Issue Type: Sub-task
>          Components: ha, test
>    Affects Versions: HA branch (HDFS-1623)
>            Reporter: Todd Lipcon
>            Assignee: Todd Lipcon
>         Attachments: hdfs-2591.txt
> Right now the MiniDFS builder is somewhat inflexible - it just takes a "numNameNodes"
parameter, which is used to specify federated nameservices. In order to add HA support, we
need to be able to be more specific when configuring the NNs -- eg to test the case where
there is one nameservice that is HA and another which is not.

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