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Lessons (6)

• Consumers & Consumer Groups

  How consumers read in parallel with consumer groups, how partitions are assigned and rebalanced, how offsets are committed …

• What Is Apache Kafka?

  … 8997 }) }], }); // Consumer: read events as part of a group const consumer = kafka.consumer({ groupId: "email-service" }); await consumer …

• Kafka vs RabbitMQ & the Kafka Ecosystem

  … Multiple independent readers One queue per reader (fanout) ✅ Consumer groups on one topic Stream processing ❌ ✅ Kafka Streams, Flink …

• Topics, Partitions & Offsets

  … each partition can be read by a different consumer in a group. mermaid flowchart TB subgraph Topic["Topic …

• Brokers, Replication & Durability

  … It stores partition replicas and serves producers and consumers. - A cluster is a group of brokers (3 at …

• Caching & Redis

  … time windows Stream XADD , XREADGROUP Event log with consumer groups Pub/Sub PUBLISH , SUBSCRIBE Real-time notifications, chat …