// errors
ZKHelixDataAccessor accessor = new ZKHelixDataAccessor(clusterName, new ZkBaseDataAccessor<ZNRecord>(_gZkClient));
Builder keyBuilder = accessor.keyBuilder();
LiveInstance liveInstance = accessor.getProperty(keyBuilder.liveInstance(instance));
accessor.removeProperty(keyBuilder.stateTransitionStatus(instance, liveInstance.getSessionId(), resource, partition));
}
// TODO: throw exception in reset()
}