Hi , Yeah!!! you can tell hadoop to use the IP or hostname instead of localhost by specifying in hadoop configuration file i.e hadoop-site.xml . The parameters for hadoop-site.xml you can copy from hadoop-default.xml .
For NameNode: <name>fs.default.name</name> <value><IP/Hostname>:54310</value> For JobTracker: <name>mapred.job.tracker</name> <value><IP/Hostname>:54311</value> For ssh related problem follow some nice online tutorial for enabling the passwordless connection across machines using same key. If you still not able to solve the problem . Let me know . Thanks , --- Peeyush -----Original Message----- From: Andreas Kostyrka [mailto:[EMAIL PROTECTED] Sent: Sat 3/22/2008 2:01 AM To: [email protected] Subject: Re: NFS mounted home, host RSA keys, localhost, strict sshds andbad mojo. Add a .ssh/config file and make it stop doing the hostkey check for localhost. Andreas Am Freitag, den 21.03.2008, 12:25 -0400 schrieb Colin Freas: > i'm working to set up a cluster across several machines where users' home > dirs are on an nfs mount. > > i setup key authentication for the hadoop user, install all the software on > one node, get everything running, and move on to another node. > > once there, however, my sshd complains because the host key associated with > "localhost" is a different machine, and it refuses the connection. > > i'm just testing here, so I can remove the localhost entry from > .ssh/known_hosts, but, is this going to be an issue going forward if the > home dirs are shared like this? > > can i get hadoop to use the ip or the hostname instead of localhost? i > scanned the config files, but it didn't jump out at me. > > > -colin
