Best way to pause an actor command and retry it without blocking the actor

Akka Libraries
1

hello, I am trying to find the best way to pause an actor command and retry it without blocking the actor itselt.
Basically events are filling a hashtable and I need to wait until a specific index of my table is received. So I need to try on a regular basis to see if the array is received but without blocking the actor as it needs to continue to receive other events.
Thanks

2

Scheduling an internal retry command to the actor itself would be one way to do that. You can find an example in the docs here: Interaction Patterns • Akka Documentation

If you want to defer messages in the meanwhile, that is also possible by stashing them. Stash • Akka Documentation

6

Hello,
To achieve this, consider using an asynchronous approach. You can utilize a timer or a scheduled task to periodically check the hashtable for the specific index. This way, the actor can continue processing other events without being blocked.

Here’s a simplified example in pseudo-code: Wakeid portal login

pseudo

function checkHashtable():
    if hashtable.contains(targetIndex):
        process(targetIndex)
    else:
        schedule next check

// Start initial check without blocking the actor
checkHashtable()

This ensures the actor remains responsive while periodically checking for the desired condition. Hope this helps!

Best Regards,
Peter Philip