I think the Doozer people misunderstood Zookeeper. They claim that ZK is focused on providing locks, but ZK really just provides a consistent hierarchical datas

I think the Doozer people misunderstood Zookeeper. They claim that ZK is focused on providing locks, but ZK really just provides a consistent hierarchical datastore that can then be used to construct locks, perform leader election, etc. See http://zookeeper.apache.org/doc/r3.3.3/recipes.html http://zookeeper.apache.org/doc/r3.3.3/recipes.html