At canonical we've been using zookeeper heavily in the development of a new project (ensemble) as noted by gustavo.
I just wanted to give a quick overview of the client library we're using for it. Its called txzookeeper, its got 100% test coverage, and implements various queue, lock, and utilities in addition to wrapping the standard zk interface. Its based on the twisted async networking framework for python, and obviates the need to use threads within the application, as all watches and result callbacks are invoked in the main app thread. This makes structuring the code signficantly simpler imo than having to deal with threads in the application, but of course tastes may vary ;-). Source code is here : http://launchpad.net/txzookeeper comments and feedback welcome. cheers, Kapil
