Since we learned about a distributed framework (dubbo), which involved zookeeper, let’s start with a brief introduction to zookeeper.Zookeeper is a distributed coordination service that manages a large number of hosts.
1. Distributed applications
Distributed applications can perform specific tasks by coordinating them between them, and a fast and effective way of running networks across multiple systems at a given time (and at the same time)
Distributed applications have two parts: the server and the client application.As shown in the figure below: