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https://issues.apache.org/jira/browse/HDFS-3159?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13252810#comment-13252810
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Aaron T. Myers commented on HDFS-3159:
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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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