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Messaging and logs · designlab

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Part 2 · Module 19

Messaging and logs

Queues, pub/sub and partitioned logs like Kafka: how they differ, what delivery guarantees really mean, and how to run a log in production.

0 of 4 lessons22 min

19.1Queues, pub/sub and logsUp next6m
19.2Delivery guarantees6m
19.3Running a log in production5m
19.4Choosing a broker5m
LabOrder events for everyoneFinish “One rider per order, one payout run per night” first35m

Practice what this module teaches

Consumer Group Event Log HLDDesign retained partition logs with fenced consumer assignments and committed offsets.Advanced60 min Distributed Work Queue HLDDesign durable enqueue, visibility leases and stale-ack protection.Advanced55 min Webhook Delivery

HLD

Deliver signed events with retries, endpoint isolation and replayable delivery history.

Advanced50 min

Log Aggregation Platform HLDCollect tenant-scoped logs with durable ingestion, searchable indexes and retention.Advanced50 min