commands.add(new YarnClusterInfoCommand(YarnClusterInfoCommand.DEFAULT_COMMAND + "x",
YarnClusterInfoCommand.DEFAULT_DESC + "x", new ClusterInfoOptionHandler()));
commands.add(new YarnClusterCreateCommand(YarnClusterCreateCommand.DEFAULT_COMMAND + "x",
YarnClusterCreateCommand.DEFAULT_DESC + "x", new ClusterCreateOptionHandler()));
commands.add(new YarnClusterStartCommand(YarnClusterStartCommand.DEFAULT_COMMAND + "x",
YarnClusterStartCommand.DEFAULT_DESC + "x", new ClusterStartOptionHandler()));
commands.add(new YarnClusterStopCommand(YarnClusterStopCommand.DEFAULT_COMMAND + "x",
YarnClusterStopCommand.DEFAULT_DESC + "x", new ClusterStopOptionHandler()));
commands.add(new YarnClusterModifyCommand(YarnClusterModifyCommand.DEFAULT_COMMAND + "x",
YarnClusterModifyCommand.DEFAULT_DESC + "x", new ClusterModifyOptionHandler()));
commands.add(new YarnClusterDestroyCommand(YarnClusterDestroyCommand.DEFAULT_COMMAND + "x",