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https://issues.apache.org/jira/browse/KNOX-88?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14099109#comment-14099109
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Kevin Minder commented on KNOX-88:
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One minor point to address in a follow on change. I'd like the dispatch name
to be somehow WebHdfs NameNode specific where currently is is simply
"ha-http-client" which is left over when when this was originally intended to
be a generic HA dispatch impl.
> Support HDFS HA
> ---------------
>
> Key: KNOX-88
> URL: https://issues.apache.org/jira/browse/KNOX-88
> Project: Apache Knox
> Issue Type: Improvement
> Components: Server
> Affects Versions: 0.2.0
> Reporter: Kevin Minder
> Assignee: Sumit Gupta
> Fix For: 0.5.0
>
> Attachments: KNOX-88-1.patch,
> KNOX-88_initial_patch_with_not_complete_functionality.patch, KNOX_HA.docx
>
>
> In Hadoop 2 DFS client will retry the calls to the various nodes configured
> to be part of namenode HA. Thought needs to be given to if this should be
> supported in the gateway or on the client. In addition if this is supported
> in the gateway there needs to be though given to a one-off HDFS mechanism vs
> a generic gateway capability.
> Design wiki:
> https://cwiki.apache.org/confluence/display/KNOX/KNOX-88:+Support+HDFS+HA
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