Some people had done some custom cassandra zookeper integration back in the day. Triggers, there is some reference in the original facebook thrown over the wall to zk. No official release has ever used zk directly. Though people have suggested it.

On Tue, Jan 28, 2014 at 12:08 PM, Andrey Ilinykh <> wrote:
Why would cassandra use zookeeper?

On Tue, Jan 28, 2014 at 7:18 AM, S Ahmed <> wrote:
Does C* no long use zookeeper?

I don't see a reference to it in the

If not, what replaced it?