You can setup the machines and configure them without being connected over a network. But once you want to start up the services all machines have to be active and reachable on the LAN.
Bill -----Original Message----- From: janani venkat [mailto:janani.cs...@gmail.com] Sent: Wednesday, February 03, 2010 8:51 AM To: common-user@hadoop.apache.org Subject: Hadoop cluster setup Hi I'm a beginner in working with hadoop. I want to know if we have to physically connect the machines using LAN cable before setting up the cluster. Urgently needed to clarify this and start my work\ Regards Janani
