An append-only log in memory that supports replay and consumer groups.

A Redis stream keeps events in order for consumers

A Redis stream stores entries under ordered IDs so readers can revisit retained history. Unlike Pub/Sub, the reader need not be online when the producer appends. That difference provides replay, not unconditional durability: deleted entries, retention limits, and persistence settings still determine what remains available after delay or failure. ...

May 6, 2027 · 6 min · XB Field Notes