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https://issues.apache.org/jira/browse/HDFS-3926?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Aaron T. Myers updated HDFS-3926:
---------------------------------

    Attachment: regular-ha-doc.diff
                qjm-ha-doc.diff
                HDFS-3926.patch

Here's a patch which addresses the issue. This change forks the existing HA 
documentation into an NFS guide and a QJM guide. In doing so, it renames the 
regular guide to make it clear that it is for NFS. This change also takes the 
liberty of documenting the 'bootstrapStandby' and 'initializeSharedEdits" 
commands. 

To ease review, I'm also attaching a small diff of the changes to the NFS HA 
doc (since the file was renamed), and a diff of the QJM HA doc against the 
previous HA doc, to make it clear what changes were required to make the doc 
QJM-specific.
                
> QJM: Add user documentation for QJM
> -----------------------------------
>
>                 Key: HDFS-3926
>                 URL: https://issues.apache.org/jira/browse/HDFS-3926
>             Project: Hadoop HDFS
>          Issue Type: Sub-task
>          Components: documentation
>    Affects Versions: QuorumJournalManager (HDFS-3077)
>            Reporter: Aaron T. Myers
>            Assignee: Aaron T. Myers
>         Attachments: HDFS-3926.patch, qjm-ha-doc.diff, regular-ha-doc.diff
>
>
> We should add user-facing documentation for how to configure/use the QJM.

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