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From "Aaron T. Myers (Commented) (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-3159) Document NN auto-failover setup and configuration
Date Thu, 12 Apr 2012 20:45:20 GMT

    [ https://issues.apache.org/jira/browse/HDFS-3159?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13252810#comment-13252810
] 

Aaron T. Myers commented on HDFS-3159:
--------------------------------------

It's not introduced by your change, but you might as well fix it here:

"Prior to Hadoop 0.23.2, the NameNode was a single point of failure (SPOF) in an HDFS cluster."
- this actually won't appear in 0.23.2, and instead will first show up in 2.0.0.
                
> Document NN auto-failover setup and configuration
> -------------------------------------------------
>
>                 Key: HDFS-3159
>                 URL: https://issues.apache.org/jira/browse/HDFS-3159
>             Project: Hadoop HDFS
>          Issue Type: Sub-task
>          Components: auto-failover, documentation, ha
>    Affects Versions: Auto failover (HDFS-3042)
>            Reporter: Todd Lipcon
>            Assignee: Todd Lipcon
>         Attachments: HDFSHighAvailability.html, hdfs-3159.txt
>
>
> We should document how to configure, set up, and monitor an automatic failover setup.
This will require adding the new configs to the *-default.xml and adding prose to the "apt"
docs as well.

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