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 <[email protected]> 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
