Скачать или смотреть How BILLION-Scale Microservices Actually Talk: REST vs Async Messaging

In complex microservices architectures, synchronous REST calls can drag down your system's availability and scalability.

In this deep dive, we’ll walk through how asynchronous messaging can make your distributed system more resilient — and how to avoid common pitfalls while doing it.

✅ Topics covered:
1. Message ordering and how tools like Kafka and AWS Kinesis use sharded channels
2. Duplicate message handling with idempotency and processed message tables
3. Consumer group design and partition-based parallelism
4. Transactional Outbox Pattern to ensure message delivery without race conditions
5. REST vs Async IPC — availability math and recovery strategies

🎯 Related Videos:
Event-Driven Architecture Simplified →    • From REST to gRPC to Messaging: SCALING Mi...  
REST vs gRPC Deep Dive →    • REST vs gRPC in Microservices | Which One ...  

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#microservices #asynchronousmessaging #kafka #systemdesign

📌 Timestamps
0:00 Intro
0:53 Message Ordering Challenges
1:55 Kafka Partitions & Shard Keys
2:32 Consumer Groups & Rebalancing
2:56 Duplicate Messages in At-Least-Once Delivery
4:00 Idempotent Handlers vs Deduplication Tables
5:50 REST & Availability Issues
9:08 Async Messaging for Resilience
10:24 Transactional Outbox Pattern
11:13 Summary & Outro

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