h1. Running Apache ZooKeeper

The main use of the Python Cloud Scripts is to run Hadoop clusters, but you can
also run other services such as Apache ZooKeeper.

*To run Apache ZooKeeper, set the {{service}} parameter to {{zookeeper}}:*
{code}
[my-zookeeper-cluster]
service=zookeeper
ami=ami-ed59bf84
instance_type=m1.small
key_name=tom
availability_zone=us-east-1c
public_key=/path/to/public/key/file
private_key=/path/to/private/key/file
{code}

*To launch a three-node ZooKeeper ensemble:*
{code}
% ./hadoop-ec2 launch-cluster my-zookeeper-cluster 3 zk
{code}