new ZKHelixDataAccessor(clusterName, new ZkBaseDataAccessor<ZNRecord>(_gZkClient));
Builder keyBuilder = new Builder(clusterName);
LiveInstance liveInstance = new LiveInstance("localhost_12918");
liveInstance.setSessionId("session_0");
liveInstance.setHelixVersion("version_0");
accessor.setProperty(keyBuilder.liveInstance("localhost_12918"), liveInstance);
// drop without stop the process, should throw exception
try {
ClusterSetup.processCommandLineArgs(new String[] {
"--zkSvr", ZK_ADDR, "--dropNode", clusterName, "localhost:12918"