My guess is to put two set of this
dfs.ha.namenodes.clusterA=nn1,nn2
dfs.namenode.rpc-address.clusterA.nn1=
dfs.namenode.http-address.clusterA.nn1=
dfs.namenode.rpc-address.clusterA.nn2=
dfs.namenode.http-address.clusterA.nn2=

to the client setting, and then access it like hdfs://clusterA/tmp ...

Regards,
*Stanley Shi,*

On Fri, Apr 18, 2014 at 7:42 AM, david marion <[EMAIL PROTECTED]> wrote: