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https://issues.apache.org/jira/browse/HDFS-5123?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13773371#comment-13773371
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Joep Rottinghuis commented on HDFS-5123:
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[~andrew.wang] saw your comment in HDFS-5221.
Seems approach 1) is great, but not enough to solve ability to copy Hadoop 1.x
cluster to a Hadoop 2.x cluster. For that we need approach 2).
> Hftp should support namenode logical service names in URI
> ---------------------------------------------------------
>
> Key: HDFS-5123
> URL: https://issues.apache.org/jira/browse/HDFS-5123
> Project: Hadoop HDFS
> Issue Type: Bug
> Components: ha
> Affects Versions: 2.1.0-beta
> Reporter: Arpit Gupta
>
> For example if the dfs.nameservices is set to arpit
> {code}
> hdfs dfs -ls hftp://arpit:50070/tmp
> or
> hdfs dfs -ls hftp://arpit/tmp
> {code}
> does not work
> You have to provide the exact active namenode hostname. On an HA cluster
> using dfs client one should not need to provide the active nn hostname
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