@Override
protected void createBrokerCluster(int brokerCount) throws Exception {
// Store the partitioning in ZK.
ZKClient zk_client = new ZKClient("localhost:" + connector.getLocalPort(), Timespan.parse("10s"), null);
try {
zk_client.start();
zk_client.waitForConnected(Timespan.parse("30s"));
try {
zk_client.delete(zkPath);
} catch (Throwable e) {
}