You don't need DNS. You can use the /etc/hosts.
I'm using it here and it's working well. Edson Ramiro On 4 March 2010 14:39, Allen Wittenauer <awittena...@linkedin.com> wrote: > > > > On 3/3/10 3:38 PM, "jiang licht" <licht_ji...@yahoo.com> wrote: > > Here's my question, I have to type my password (not PASSPHRASE for key) > due to > > some reverse name resolution problem when I do either SSH MASTER from > SLAVE or > > SSH SLAVE from MASTER. Since my system admin told me all ports are open > > between them, I am wondering will this interactive authentication > prevents > > datanode/tasktracker from talking to namenode/jobtracker? > > If reverse name resolution isn't working, then you are going to have all > sorts of problems. DNS needs to be properly configured. [I wish I knew > where the whole "you don't need reverses configured for dns" thing came > from > amongst admins.] > >
