/// <exception cref="System.IO.IOException"/>
public static void CreateCluster()
{
HdfsConfiguration conf = new HdfsConfiguration();
conf.AddResource(ContractHdfsXml);
//hack in a 256 byte block size
conf.SetInt(DFSConfigKeys.DfsBlockSizeKey, BlockSize);
cluster = new MiniDFSCluster.Builder(conf).NumDataNodes(2).Build();
cluster.WaitClusterUp();
}