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From "Konstantin Shvachko (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-4231) Introduce HAState for BackupNode
Date Wed, 28 Nov 2012 18:04:59 GMT

    [ https://issues.apache.org/jira/browse/HDFS-4231?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13505720#comment-13505720
] 

Konstantin Shvachko commented on HDFS-4231:
-------------------------------------------

BackupNode already has BNHAContext. It is natural to have the paring BNHAState.
BNHAState should start services as active NameNode, but appear in StandbyState to DataNodes.
So that one could configure DNs to report to both nodes. 
                
> Introduce HAState for BackupNode
> --------------------------------
>
>                 Key: HDFS-4231
>                 URL: https://issues.apache.org/jira/browse/HDFS-4231
>             Project: Hadoop HDFS
>          Issue Type: Improvement
>          Components: ha, name-node
>    Affects Versions: 2.0.2-alpha
>            Reporter: Konstantin Shvachko
>            Assignee: Konstantin Shvachko
>
> Introduce BNHAState backed up by existing BNHAContext.

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