Feature : Kill pending retry callbacks?

[KingZee]

Since the default behavior has an incremental delay, this combined with asynchronous promises, usually means after a few promises fail for a few times, they are kept in the stack until the number of retries ends.

This is great, but I'd like to suggest a feature for extreme cases. I have a websocket that receives a lot of events, and some of them might take some processing time that could go up to an hour or two. Could there be a pooling feature to limit the total amount of pending retries? So once the number of promises reaches a maximum, the earliest one gets discarded and so-on.

Or if not possible, maybe just a way to stop retries for a promise depending on the argument that was passed to it, and leave handling them or pooling them depending on each dev's usecase.