What are the typical application scenarios of zookeeper?

Through to Zookeeper The rich data nodes in are used in cross , coordination Watcher Event notification mechanism , It is very convenient to build a series of core functions involved in distributed applications , Such as ：

（1） Data Publishing / subscribe

（2） Load balancing

（3） Naming service

（4） Distributed coordination / notice

（5） Cluster management

（6）Master The election

（7） Distributed lock

（8） Distributed queues