社交媒体平台的高可用性：领导-追随者架构与领导选举
原文英文，约900词，阅读约需3分钟。发表于：。Leader - Follower Architecture Imagine you are the owner of a social media company. You know that database read access is very high, with billions of users scrolling through posts and feeds. On...
领导-追随者架构通过将写请求交给领导数据库处理，读请求交给多个追随者数据库，从而提高读写效率。领导选举算法（如Raft）确保系统的安全性和活跃性。设置键的过期时间可在领导失效时让其他进程接管，确保系统的高可用性和扩展性。
