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https://issues.apache.org/jira/browse/HDFS-12532?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16224370#comment-16224370
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Vinayakumar B commented on HDFS-12532:
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FYI, Usecase for the floating IP is to provide HA for a Service. Active service
will bind to floating IP.
So, using floating IP in Non-Secure setup also may still lead to same problem.
which is a valid use-case IMO.
> DN Reg can Fail when principal doesn't contain hostname and floatingIP is
> configured.
> -------------------------------------------------------------------------------------
>
> Key: HDFS-12532
> URL: https://issues.apache.org/jira/browse/HDFS-12532
> Project: Hadoop HDFS
> Issue Type: Bug
> Reporter: Brahma Reddy Battula
> Assignee: Brahma Reddy Battula
> Attachments: HDFS-12532.patch
>
>
> Configure principal without hostname (i.e hdfs/[email protected])
> Configure floatingIP
> Start Cluster.
> Here DN will fail to register as it can take IP which is not in "/etc/hosts".
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