AWS Certified CloudOps Engineer - Associate
RDS Proxy and Performance Tuning
Fix connection exhaustion with RDS Proxy, recognize the session pinning that quietly cancels its benefit, and pick the right tuning lever when the bottleneck is the instance, the storage, or the queries instead.
Intermediate 30 minutes 6 Learning Objectives
- Explain why database connections are expensive and how max_connections is derived from instance class memory
- Describe how RDS Proxy pools and multiplexes connections, and what borrowing means
- Identify the operations that cause session pinning and the metric that detects it
- Configure the proxy connection pool settings and know their defaults
- Explain how RDS Proxy shortens failover and Blue/Green switchover for applications
- Choose between connection pooling, instance resizing, storage changes, parameter tuning, and read offloading for a given bottleneck