8 docs tagged with "messaging"

Amazon SNS for DVA-C02. Topics, subscriptions, fan-out pattern with SQS, message filtering, SNS FIFO, mobile push notifications, and the difference between SNS and SQS.

Amazon SQS for DVA-C02 — standard vs FIFO queues, visibility timeout, message retention, DLQ, long polling, delay queues, and Lambda integration via Event Source Mapping. Key exam patterns covered.

A comprehensive guide to the Dead Letter Queue (DLQ) pattern — covering poison pill handling, retry strategies, alternatives comparison, AWS SQS / Kafka / RabbitMQ implementations, and production deep dives for senior engineers.

A complete guide to Kafka brokers — what they are, how storage works, partition leadership, replication, ISR, KRaft vs ZooKeeper, log compaction, performance internals, and production monitoring. Beginner through senior depth.

A complete guide to Kafka exactly-once semantics — delivery guarantees, idempotent producer, transactions, read_committed consumers, Kafka Streams EOS, zombie producer fencing, two-phase commit internals, and production patterns. Beginner through senior depth.

Guide to asynchronous messaging systems including Kafka, RabbitMQ, SQS, event sourcing, pub/sub patterns, consumer groups, ordering guarantees, and exactly-once semantics.

Redis Pub/Sub messaging — channels, patterns, fire-and-forget semantics, delivery guarantees, and production comparison with Redis Streams.

Complete guide to Redis Streams — append-only logs, consumer groups, message acknowledgement, and comparison with Kafka for senior engineers.