If I just change configuration settings in slave machines, Will it effect any of the data that is currently residing in the cluster ??
And my second question was... Do we need the master node (NN/JT hosting machine) to have good configuration than our slave machines(DN/TT hosting machines). Actually my master node is a weaker machine than my slave machines,because I am assuming that master machines does not do much additional work, and its okay to have a weak machine as master. Now I have a new big server machine just being added to my cluster. So I am thinking shall I make this new machine as my new master(NN/JT) or just add this machine as slave ? Thanks, Praveenesh On Thu, Sep 22, 2011 at 10:20 AM, Uma Maheswara Rao G 72686 < mahesw...@huawei.com> wrote: > You copy the same installations to new machine and change ip address. > After that configure the new NN addresses to your clients and DNs. > > >Also Does Namenode/JobTracker machine's configuration needs to be better > >than datanodes/tasktracker's ?? > I did not get this question. > > Regards, > Uma > > ----- Original Message ----- > From: praveenesh kumar <praveen...@gmail.com> > Date: Thursday, September 22, 2011 10:13 am > Subject: Can we replace namenode machine with some other machine ? > To: common-user@hadoop.apache.org > > > Hi all, > > > > Can we replace our namenode machine later with some other machine. ? > > Actually I got a new server machine in my cluster and now I want > > to make > > this machine as my new namenode and jobtracker node ? > > Also Does Namenode/JobTracker machine's configuration needs to be > > betterthan datanodes/tasktracker's ?? > > > > How can I achieve this target with least overhead ? > > > > Thanks, > > Praveenesh > > >
