Question about missing broker data in zookeeper

Hi,

I've a setup of three kafka servers (kafka_2.8.0-0.8.0) and three zookeeper servers (zookeeper1, zookeeper2, zookeeper3).

Everything works OK, but when I did a consumer test using nodejs package node-kafka it failed to retrieve any messages. When I looked more closely I found something interesting.

When I do a zookeeper query using

----------------------8<----------------------------
prompt> ./bin/zookeeper-shell.sh zookeeper2:2182

ls /
[controller, brokers, zookeeper, controller_epoch]

ls /brokers
[ids]

ls /brokers/ids
[3, 2, 1]

ls /brokers/ids/1
[]
----------------------8<----------------------------

there is no data for broker. As per 
https://cwiki.apache.org/confluence/display/KAFKA/Kafka+data+structures+in+Zookeeper there should be broker registration data here. (I get same results from other two zookeepers as well).

The node-kafka consumer test that I mentioned earlier expects to find broker hostname and other connection information here, but it seems to be missing.

I'll appreciate if anyone can suggest a solution.

Thanks,
jsh1234