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https://issues.apache.org/jira/browse/HDFS-6334?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13995957#comment-13995957
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Aaron T. Myers commented on HDFS-6334:
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Patch looks great to me, Kihwal. Thanks for doing it. Two little nits:
# bq. + * used, a special token handling mat be needed to make sure a token
acquired
s/mat/may/g
# The method comment for {{ConfiguredFailoverProxyProvider#useLogicalURI}} says
"Logical URI is not used for IP failover." While strictly true, I'm guessing
you meant to put a different comment here.
+1 once these are addressed.
> Client failover proxy provider for IP failover based NN HA
> ----------------------------------------------------------
>
> Key: HDFS-6334
> URL: https://issues.apache.org/jira/browse/HDFS-6334
> Project: Hadoop HDFS
> Issue Type: Improvement
> Reporter: Kihwal Lee
> Assignee: Kihwal Lee
> Attachments: HDFS-6334.patch, HDFS-6334.v2.patch
>
>
> With RPCv9 and improvements in the SPNEGO auth handling, it is possible to
> set up a pair of HA namenodes utilizing IP failover as client-request fencing
> mechanism.
> This jira will make it possible for HA to be configured without requiring use
> of logical URI and provide a simple IP failover proxy provider. The change
> will allow any old implementation of {{FailoverProxyProvider}} to continue to
> work.
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