REDIS distributed caching

[Barun Kumar]

Hello All,

Is it necessary to implement the redis sentinal for redis distributed caching???

I am accessing my application(.war) from 3 instance of tomcat running on three

different machine.and my application using same Mysql db to populate

the application cache on each tomcat start up.

Request you guys to help  me out in choosing the approach?

with sentinel or without sentinal.

Regards,

Barun

[Itamar Haber]

Hell Barun,

Sentinel is a tool that provides high availability to non-clustered instances - see here for the documentation: https://redis.io/topics/sentinel.

In a nutshell, Sentinel monitors the health of the master and slaves, and promotes a slave in case of a master's failure.

You don't need it if you're not worried about your Redis being highly available.

You do need it (or another HA solution) if you want your application to have almost uninterrupted cache service.

Cheers,

Itamar

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[Barun Kumar]

Thanks Itamar

Regards,

Barun