You should do the following steps: 1. Have hadoop deployed on the new node with the same directory structure and configuration. 2. Just run $HADOOP_HOME/bin/hadoop datanode and jobtracker.
Datanode and jobtracker will contact to namenode specified in hadoop configuration file automatically and finish adding new node to the hadoop cluster. On Mon, Mar 10, 2008 at 4:56 AM, Aaron Kimball <[EMAIL PROTECTED]> wrote: > Yes. You should have the same hadoop-site across all your slaves. They > will need to know the DNS name for the namenode and jobtracker. > > - Aaron > > tjohn wrote: > > > > Mahadev Konar wrote: > > > >> I believe (as far as I remember) you should be able to add the node by > >> bringing up the datanode or tasktracker on the remote machine. The > >> Namenode or the jobtracker (I think) does not check for the nodes in > the > >> slaves file. The slaves file is just to start up all the daemon's by > >> ssshing to all the nodes in the slaves file during startup. So you > >> should just be able to startup the datanode pointing to correct > namenode > >> and it should work. > >> > >> Regards > >> Mahadev > >> > >> > >> > > > > Sorry for my ignorance... To make a datanode/tasktraker point to the > > namenode what should i do? Have i to edit the hadoop-site.xml? Thanks > > > > John > > > > > -- [EMAIL PROTECTED] Institute of Computing Technology, Chinese Academy of Sciences, Beijing.
