Beware of the scale up challenges with Redis. Redis can only utilize a single core. If you do anything sophisticated that needs to be atomic then you can't scale out to multiple servers, and you can't scale up to multiple cores.
At least with Postgres you can scale up trivially. Postgres will efficiently take advantage of as many cores as you give it. For scale out you will need to move to a purpose built queuing solution.
At least with Postgres you can scale up trivially. Postgres will efficiently take advantage of as many cores as you give it. For scale out you will need to move to a purpose built queuing solution.