hbase and hadoop both have a single node (namenode & master) that tell the
clients where stuff is that's all they do is keep up with
where stuff is they do not handle the getting of the data the client api
will go to the node with the data they tell it to find the data and get the
data.
as for adding new nodes to hadoop to balance the cluster you can use
bin/start-balancer.sh -threshold 5
Where 5 is the % you want the nodes to be with in each other in terms of
used %
Billy
"Jae Joo" <[email protected]> wrote in
message news:[email protected]...
Hi,
We are doing some feasibility study of HBase and have questions.
1. Once we have build tables on certain number node and decide to add more
nodes, how it is working? I know that it is not hbase, but hadoop
questions.
Will it automatically redistribute the files or start utilizing the new
node
for new inserted records?
2. Is there any way to have multile master nodes? Should all traffis (or
requests) be going to SIngle Master node to access the data from hbase?
Thanks,
Jae
