[mosquitto-dev] Persisting messages

[Shirish Kumar <shirish.kumar@xxxxxxxxx>]

I am new to mosquitto - so pardon my ignorance.  I have a few questions on persistence and HA.

I am thinking of an architecture where I will use mongo for persisting all the messages use Mosquitto provided persistence to store only recent messages.  My assumption is this way when I need to re-start the broker, it would not have to read all the messages.  Is there a way to expire old messages from the DB?

How do I achieve HA with mosquitto? Is there design that you can point me to?

Thanks.

-Shirish.