https://www.rambling-me.com/blog A blog to reflect my thoughts, learnings, and observations en-us me@rambling-me.com (Dopeking) me@rambling-me.com (Dopeking) Sat, 08 Aug 2026 00:00:00 GMT https://www.rambling-me.com/blog/posts/technology/scaling/api-backend/3-kafka-mechanics https://www.rambling-me.com/blog/posts/technology/scaling/api-backend/3-kafka-mechanics Just enough Kafka to reason about scale, not a tutorial. Partitions are the unit of parallelism, keys decide ordering, consumer groups divide the work, and partition count bounds throughput. Then the delivery semantics that shape everything downstream: at-least-once versus exactly-once, and what each really costs. Sat, 08 Aug 2026 00:00:00 GMT me@rambling-me.com (Dopeking) technologyscalingapi-backendkafkapartitionsconsumer-groupsdelivery-semanticspractitioner