redisredis-sentinel

How to switch redis master in sentinel configuration

I have a redis sentinel configuration with one master, two slaves and 3 sentinels running. I noticed that at some point the sentinels may switch the master electing one of the slaves as master. This is causing problems to an application which is connecting to the master node as a standalone client(I'm working on changing the code to use sentinels). I wanted to know if it is possible to switch the master by connecting to the sentinel client i.e. through 'redis-cli'

Can somebody let me know if there is a command that I can use to switch the master IP?

Solution

  • You can manually trigger a failover by running:
    redis-cli -a {password} -p {sentinel_port} SENTINEL failover {cluster_name}