redis failover in openresty/lua code vs using sentinel

uppal.samar · 2014-09-16T11:57:28+00:00

Hello! On Mon, Sep 15, 2014 at 4:56 PM, Robert Paprocki wrote: > Based on > http://stackoverflow.com/questions/11457676/python-socket-error-errno-13-p...

redis failover in openresty/lua code vs using sentinel

uppal.samar

I am wanting to provide HA to my redis instance by using a single slave with master slave replication. I could write a simple failover logic in openresty/lua. Are there any significant advantages to using Redis Sentinel over writing Redis failover logic in lua code? I see the obvious advantages as being able to install sentinels on multiple nodes to improve accuracy of predicting whether a master is really down or its a network issue...

Would appreciate some insights into this from people who have used either of the above techniques for Redis failover.

Thanks.