If you want to focus on durability then I think your complaint makes even less sense. Somehow I doubt S3 is primarily backed by Redis.
I think it's fair to assume that something backed by Redis is not durable by default because that's not what Redis is known for, whereas the other options you listed are known for their resiliency and durability. I wouldn't view Sidekiq as a similar product to RabbitMQ and SQS.
I think it's fair to assume that something backed by Redis is not durable by default because that's not what Redis is known for, whereas the other options you listed are known for their resiliency and durability. I wouldn't view Sidekiq as a similar product to RabbitMQ and SQS.
Also, Sidekiq Pro uses more advanced Redis features to enable super_fetch lending to the assumption that by default Redis is not durable: https://www.bigbinary.com/blog/increase-reliability-of-backg....