Link: gitee.com/chenhua0421… Code: 84
ZooKeeper is a centralized service for maintaining configuration information, naming, providing distributed synchronization, and providing group services. Distributed applications use all of these types of services in one form or another. Each time they are implemented, a lot of work is required to fix the inevitable errors and race conditions. Because of the difficulty of implementing these services, applications often skimp on them initially, making them vulnerable and difficult to manage when changes occur. Even when done correctly, the different implementations of these services can cause administrative complexity when the application is deployed.