- Maximum Acceptable Time - RTO
- Maximum Acceptable Amount Of Data Loss - RPO
Can you Explain me One of Disaster Recovery Statergy you are familier with
Multi Region Active Active
How to design the Microservice with Alb
1 service vs Another — Quick question Ask — What are the system requiremnts
Lambda Concurrency Controls 🎯
⚡ Key Concept: Concurrency
👉 Concurrency = number of Lambda executions running at the same time
- 1 request → concurrency = 1
- 500 requests → concurrency = 500
A. Account-level concurrency
- Default limit (e.g., ~1000 per region)
- Shared across all Lambdas
B. Reserved Concurrency
- Set limit for a specific function
- Guarantees capacity
Example:
Function A → reserved 300
Function B → uses rest
C. Provisioned Concurrency ⚡
- Pre-warmed instances
- No cold starts -
- New instances → cold start
👉 Useful for:
- Low latency APIs
- Critical services
PODS - HPA Worker nodes - Cluster Autoscaler / Karpenter Keep of looking if there is Pods status PENDING Unschedulable
AWS countdown - simulate the traffic
