Also, if you haven't yet configured rack awareness, now's a good time to start :) - Aaron
On Tue, Aug 11, 2009 at 11:27 PM, Ted Dunning <ted.dunn...@gmail.com> wrote: > If you add these nodes, data will be put on them as you add data to the > cluster. > > Soon after adding the nodes you should rebalance the storage to avoid age > related surprises in how files are arranged in your cluster. > > Other than that, your addition should cause little in the way of surprises. > > On Tue, Aug 11, 2009 at 11:00 PM, yang song <hadoop.ini...@gmail.com> > wrote: > > > Dear all > > I'm sorry to disturb you. > > Our cluster has 200 nodes now. In order to improve its ability, we > hope > > to add 60 nodes into the current cluster. However, we all don't know what > > will happen if we add so many nodes at the same time. Could you give me > > some > > tips and notes? During the process, which part shall we pay much > attention > > on? > > Thank you! > > > > P.S. Our environment is hadoop-0.19.1, jdk1.6.0_06, linux redhat > > enterprise 4.0 > > > > > > -- > Ted Dunning, CTO > DeepDyve >
