Use a database. Wrap it with a scheduler. Have your workers poll it. Use Redis if you must in higer-contention situations for locks. Doing this will solve count

Use a database. Wrap it with a scheduler. Have your workers poll it. Use Redis if you must in higer-contention situations for locks. Doing this will solve countless swathes of distributed systems problems, and you won't get woken up at 2am every third night.