pa-04 — References

The log model

• Jay Kreps, The Log: What every software engineer should know about real-time data's unifying abstraction — the foundational essay. https://engineering.linkedin.com/distributed-systems/log-what-every-software-engineer-should-know-about-real-time-datas-unifying
• Apache Kafka docs — topics, partitions, offsets, consumer groups, rebalancing (range/round-robin/sticky/cooperative), retention, delivery semantics. https://kafka.apache.org/documentation/
• Designing Data-Intensive Applications (Kleppmann) — ch. 11 (stream processing) and "turning the database inside out."
• Kafka: The Definitive Guide (Narkhede et al.).

Contrasting brokers

• Apache Pulsar (segmented log + tiered storage), NATS JetStream (subjects + streams), RabbitMQ (queues/exchanges, per-message ack). Know the log-vs-queue distinction and when each fits.

Related concepts

• db-03 (write-ahead log) — the same append-only primitive for recovery.
• Event sourcing / CQRS (microservices.io) — the log as source of truth.
• Sticky/cooperative rebalancing (KIP-429) — minimal-movement assignment, the gw-04/pa-06 stability theme.

Cross-lab links

• pa-03 (the patterns that run on this log), pa-05 (outbox → log), pa-06 (partitioning + rebalancing for data), pa-09 (consumer lag as an SLI), gw-04 (minimal-movement reassignment).