Queue

A stream distributes new work through a consumer group and tracks pending entries for explicit recovery.

Redis Streams let a group share the work

A Redis Streams consumer group distributes new entries among named consumers and records deliveries awaiting acknowledgement. It does not guarantee exactly-once effects, prevent retention loss, or recover abandoned work by itself. Understanding the group position, pending entries, and retained stream data separately is essential before treating it as a work queue. ...

A doubly-ended sequence that strings values at either head.

A Redis list is a queue, a stack, or both

A Redis list is an ordered sequence of byte values with operations at both ends. Choosing the push and pop ends determines whether it behaves as a queue or a stack. Blocking operations wait for data; they are not distributed locks, acknowledgements, or a complete message-processing protocol. ...