Introduction - If you have any usage issues, please Google them yourself
Etcd is a highly available Key/Value storage system, which is mainly used to share configuration and service discovery. Etcd s inspiration comes ZooKeeper and Doozer, which focuses on:
Simple: user API (HTTP+JSON) supported by curl
Security: optional SSL client certificate authentication
Fast: single instance can write operations per second 1000 times
Reliable: using Raft to achieve distributed