To add new datanodes, use the same hadoop version already running on your cluster, the right config and start datanode on any node. The datanode would be configured to talk to the namenode by reading the configs and it would join the cluster. To remove datanode(s) you could decommission the datanode and once decommissioned just kill DataNode process. This is described in there http://wiki.apache.org/hadoop/FAQ#17
Thanks, Lohit ----- Original Message ---- From: Kevin <[EMAIL PROTECTED]> To: [email protected] Sent: Friday, July 11, 2008 3:43:41 PM Subject: How to add/remove slave nodes on run time Hi, I searched a bit but could not find the answer. What is the right way to add (and remove) new slave nodes on run time? Thank you. -Kevin
