This is my understanding and i can be wrong: :)
you do not really need a different hardware instance unless your each
namespace is highly busy like a single namespace hdfs cluster.
you can setup multiple namenodes on a single machine with different config
and different namenode directories and
Hi,
I just want to throw out a discussion topic on federation.
Reading *The Definitive Guide* on HDFS, it sounds like when federating,
every distinct namespace needs a distinct namenode machine instance.
This means if a company wanted three namespaces, say retail, commercial,
government, they wo
