It is possible to run multiple datanodes.
You would have to have separate conf file for each datanode, basically you need to have different datanode address (dfs.datanode.address and related)
and different storage directories dfs.data.dir. Have different configs and start each datanode instance with different conf directory containing different conf file
----- Original Message ----
From: Ajit Ratnaparkhi <[EMAIL PROTECTED]>
To: [EMAIL PROTECTED]
Sent: Wednesday, February 25, 2009 11:04:15 PM
Subject: multiple datanodes on single node cluster
Is it possible to run multiple datanode instances on single node hadoop
How to do that?