Redis Streams
ELI5 — The Vibe Check
Redis looked at Kafka and said 'I can do that too, but simpler and from memory!' Redis Streams is an append-only log data structure built right into Redis. It's like having a mini Kafka living inside your cache layer — great for when you need streaming but don't want to deploy a whole Kafka cluster.
Real Talk
A Redis data structure that implements an append-only log with consumer groups, similar to Kafka's partitioned log model. It supports time-based IDs, range queries, consumer group acknowledgments, and pending entry lists for reliable message processing within the Redis ecosystem.
When You'll Hear This
"Redis Streams handles our real-time notification pipeline — we didn't need Kafka's complexity for this." / "Consumer groups in Redis Streams let multiple workers process the stream without duplicates."
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