Perhaps something similar to what Ben detailed here? (rendezvous)
http://developer.yahoo.com/blogs/hadoop/posts/2009/05/using_zookeeper_to_tame_system/
Change the key, add child znode(s) that's deleted by the "notified"
client(s) once it's read the changed value. Some details need to be
worked out
Hi All...
Long time reader... First time writer... Hehe...
I am curious to know what successes people have had with verifying zookeeper
changes across a pool of clients. I.E. Being able to verify that your changed
Key did in fact get pushed out to all of the subscribed clients.
We are lookin