>the storage layer can provide a CAS operation, in which case your lock is not required and the workers read, mutate, CAS Yeah, so Optimistic Concurrency Contr

>the storage layer can provide a CAS operation, in which case your lock is not required and the workers read, mutate, CAS Yeah, so Optimistic Concurrency Control. Possibly a Redlock-like lease scheme could be used to improve performance in the high-contention case.