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From "Karthik Kambatla (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HDFS-6440) Support more than 2 NameNodes
Date Thu, 03 Jul 2014 05:29:54 GMT

     [ https://issues.apache.org/jira/browse/HDFS-6440?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Karthik Kambatla updated HDFS-6440:
-----------------------------------

    Target Version/s: 2.6.0  (was: 2.5.0)

> Support more than 2 NameNodes
> -----------------------------
>
>                 Key: HDFS-6440
>                 URL: https://issues.apache.org/jira/browse/HDFS-6440
>             Project: Hadoop HDFS
>          Issue Type: New Feature
>          Components: auto-failover, ha, namenode
>    Affects Versions: 2.4.0
>            Reporter: Jesse Yates
>            Assignee: Jesse Yates
>         Attachments: hdfs-6440-cdh-4.5-full.patch
>
>
> Most of the work is already done to support more than 2 NameNodes (one active, one standby).
This would be the last bit to support running multiple _standby_ NameNodes; one of the standbys
should be available for fail-over.
> Mostly, this is a matter of updating how we parse configurations, some complexity around
managing the checkpointing, and updating a whole lot of tests.



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