cluster.submitTopology("kafkatest", new Config(), topo);
KillOptions killopts = new KillOptions();
killopts.set_wait_secs(0);
Utils.sleep(5000);
cluster.killTopologyWithOpts("kafkatest", killopts);
Utils.sleep(5000);
cluster.submitTopology("kafkatest", new Config(), topo);
Utils.sleep(60000);
}