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From "Konstantin Shvachko (JIRA)" <j...@apache.org>
Subject [jira] Updated: (HADOOP-4539) Streaming Edits to a Backup Node.
Date Sun, 16 May 2010 21:02:48 GMT

     [ https://issues.apache.org/jira/browse/HADOOP-4539?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Konstantin Shvachko updated HADOOP-4539:
----------------------------------------

    Summary: Streaming Edits to a Backup Node.  (was: Streaming Edits to a Standby Name-Node.)

> Streaming Edits to a Backup Node.
> ---------------------------------
>
>                 Key: HADOOP-4539
>                 URL: https://issues.apache.org/jira/browse/HADOOP-4539
>             Project: Hadoop Common
>          Issue Type: New Feature
>            Reporter: Konstantin Shvachko
>            Assignee: Konstantin Shvachko
>             Fix For: 0.21.0
>
>         Attachments: BackupNode.patch, BackupNode.patch, BackupNode.patch, BackupNode.patch,
BackupNode.patch, BackupNode.patch, image001.gif, StreamEditsToBN.pdf, StreamEditsToSNN.htm
>
>
> Currently Secondary name-node acts as mere checkpointer.
> Secondary name-node should be transformed into a standby name-node (SNN). 
> The long term goal is to make it a warm standby. 
> The purpose of this issue is to provide real time streaming of edits to SNN so that it
contained the up-to-date namespace state.

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