AWS Local Zone Live in Hanoi
AWS Local Zones are officially live in Hanoi (announcement), a massive win for architects battling unstable submarine cables.
1. What is a Local Zone?
- AWS Region (Singapore): The "Mega Mall" offering all 200+ services at low costs, but traveling from Hanoi takes 30-50ms.
- Local Zone (Hanoi): The "convenience store" in your lobby. It offers ultra-low latency (1-5ms), but stocks only essentials (EC2, EBS, VPC, ECS/EKS).
2. Latency Solved
This deployment solves Latency, not throughput.
- Before: Hanoi -> Cables -> Singapore -> Process -> Return = 40-100ms (or timeouts).
- Now: Hanoi -> Local Zone -> Process -> Return = < 5ms.
3. When to Pay the Premium?
Resources here cost 10-20% more than in Singapore.
🟩 When to use it:
- Data Residency: Finance/Gov data must remain in Vietnam.
- Ultra-Low Latency: Gaming, high-frequency trading, live streaming.
- Hybrid Cloud: Connecting Hanoi data centers via AWS Direct Connect.
🟥 When to avoid it:
- Standard Web Hosting: CloudFront CDN caches at Edge Locations just fine.
- Heavy Processing: Data lakes and batch processing belong in Singapore to save costs.
Summary: Use the Hanoi Local Zone for millisecond performance or compliance, but keep heavy workloads in Singapore!