Kun,
(1) The client-facing counter part of federation is ViewFileSystem, aka client
side mount table.(2) Federation is supported in 2.7. There are test cases
bringing up federated mini cluster, so I assume setting up a pseudo distributed
cluster is possible. I am not sure whether all support scripts will work as is.
73,Kihwal
From: Kun Ren <ren.h...@gmail.com>
To: hdfs-dev@hadoop.apache.org
Sent: Wednesday, April 27, 2016 7:29 PM
Subject: HDFS Federation
Hi Genius,
I have two questions about the HDFS Federation:
(1) Since there are multiple namenodes, there should be some code that
analysis the client request and transfer the request to the appropriate
namenode, could you please point to me where I can find the related code?
(2) .Also just confirm that the Hadoop 2.7.2 support HDFS Federation, but
in default there is only 1 namenode, is this correct? Meanwhile, do you
think it is possible to configure the HDFS Fderation in the pseudo
distributed mode in one node?
Thanks so much in advance.
Best,
Kun Ren
