// consumer with just one thread since the real parallelism is handled by Storm already
Map<String, Integer> topicCountMap = new HashMap<String, Integer>();
topicCountMap.put(topic, new Integer(1));
Map<String, List<KafkaMessageStream>> consumerMap = consumerConnector.createMessageStreams(topicCountMap);
KafkaMessageStream stream = consumerMap.get(topic).get(0);
consumerIterator = stream.iterator();
}