Apache ZooKeeper Client API

The ZooKeeper client API provides Java and C language bindings for distributed coordination operations. Operations include create (create znodes), delete, exists (check existence), getData, setData, getChildren, getACL, setACL, and multi (batch operations). Watch mechanisms notify clients of znode changes. Curator is the recommended high-level Java client with recipes for distributed locks, leader elections, service discovery, and caches.