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From Chris Nauroth <cnaur...@hortonworks.com>
Subject Re: HDFS Federation
Date Wed, 25 May 2016 16:17:11 GMT
Hello Kun,

Yes, this command works with federation.  The command would copy the file from NameNode 1/block
pool 1 to NameNode 2/block pool 2.

--Chris Nauroth

From: Kun Ren <ren.hdfs@gmail.com<mailto:ren.hdfs@gmail.com>>
Date: Wednesday, May 25, 2016 at 8:57 AM
To: "user@hadoop.apache.org<mailto:user@hadoop.apache.org>" <user@hadoop.apache.org<mailto:user@hadoop.apache.org>>
Subject: HDFS Federation

Hi Genius,

Does HDFS Federation support the cross namenodes operations?

For example:

./bin/hdfs dfs -cp input1/a.xml input2/b.xml

Supposed that input1 belongs namenode 1, and input 2 belongs namenode 2, does Federation support
this operation? And if not, why?


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