got it! just put the option
dfs.datanode.simulateddatastorage on your config files. On Mon, May 16, 2011 at 9:42 AM, Thanh Do <than...@cs.wisc.edu> wrote: > hey all, > > I want to run a experimental cluster > but my machines have limited disk space capacity. > I want each node in my cluster to have > around 50,000 thousand blocks. > > I don't want to have smaller the block size > (1K, 4K, etc). > > I saw SimulatedFSDataset in HDFS code base. > Could anybody shed some light in how to use this > in a real cluster, i.e. a cluster with everything > the same but simulated block? > > any hint is appreciated. > > thanks a lot. > Thanh >