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Redis Sentinel提供非集群Redis的高可用性，监控并确保在主节点故障时自动故障转移。Sentinel是一个分布式系统，至少需要三个实例进行部署，且需要配置文件。Sentinel通过监测、通知和配置提供服务，客户端需要支持Sentinel来获取当前主节点地址。
目录
High availability with Redis Sentinel
Sentinel as a distributed system
Fundamental things to know about Sentinel before deploying
Sentinel, Docker, NAT, and possible issues
Asking Sentinel about the state of a master
Obtaining the address of the current master
Reconfiguring Sentinel at Runtime
Removing the old master or unreachable replicas
Sentinel and Redis authentication
Redis Access Control List authentication
Redis password-only authentication
Configuring Sentinel instances with authentication
Sentinel Access Control List authentication
Sentinel password-only authentication
Sentinel clients implementation
Sentinels and replicas auto discovery
Sentinel reconfiguration of instances outside the failover procedure
Replica selection and priority
摘要:
记录redis哨兵的官方文档
High availability with Redis Sentinel
High availability for non-clustered Redis
Redis Sentinel provides high availability for Redis when not using Redis Cluster.
Redis Sentinel also provides other collateral tasks such as monitoring, notifications and acts as a configuration provider for clients.
This is the full list of Sentinel capabilities at a macroscopic level (i.e. the big picture):
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