Hi,
Today my persistent actor is using the default UnboundedDequeBasedMailbox.
However, to improve resiliency, I would like to use a non-blocking
BoundedDequeBasedMailbox so that my persistent actor drops messages to dead
letters if it is overwhelmed and cannot keep up with incoming messages.
Config might be something like this:
roqactor-mailbox {
mailbox-type = "akka.dispatch.BoundedDequeBasedMailbox"
mailbox-capacity = 500
mailbox-push-timeout-time = 0ms
}
I am concerned about any possible side effect the bounded mailbox might
introduce on the recovery of the actor state from its persistent journal.
Specifically does the mailbox-capacity need to be greater than the maximum
number of journal events in the actor's journal?
For example say my actor's persistent journal contains 4000 events and my
mailbox-capacity is 500 will recovery work reliably? Or does my
mailbox-capacity need to be at least 4000 in this example?
Are other folks on this list using BoundedDequeBasedMailbox on their
persistent actors?
Are there any other side effects using a BoundedDequeBasedMailbox with a
persistent actor that I should look into?
Best wishes,
Seoras
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