Thanks for the reply. But how do you start a datanode? The documentation says to start DFS from the namenode which will startup all the datanodes.
Thanks, Ankur -----Original Message----- From: Raghu Angadi [mailto:[EMAIL PROTECTED] Sent: Tuesday, July 17, 2007 1:33 PM To: [email protected] Subject: Re: adding datanodes on the fly? Ankur Sethi wrote: > How are datanodes added? Do they get added and started only at start of DFS > filesystem? Can they be added while hadoop fs is running by editing slaves > file or does hadoop have to be restarted? to add more data nodes, you can just bring up new datanodes with the right config anytime. Namenode can add them anytime. 'slaves' file is used only by the scripts like bin/start-dfs.sh, bin/stop-dfs.sh etc. So adding new datanodes to slaves helps you manage restarts etc easier. Raghu.
