private initMiniDFSCluster(conf Configuration, numDataNodes int, format boolean, manageNameDfsDirs boolean, manageNameDfsSharedDirs boolean, enableManagedDfsDirsRedundancy boolean, manageDataDfsDirs boolean, operation StartupOption, racks String[], hosts String[], simulatedCapacities long[], clusterId String, waitSafeMode boolean, setupHostsFile boolean, nnTopology MiniDFSNNTopology, checkExitOnShutdown boolean) : void