Amazon RDS Proxy.

 

Amazon RDS Proxy is a fully managed, highly available database proxy for Amazon RDS (Relational Database Service) and Amazon Aurora. 

Amazon RDS Proxy sits between the application and the database, helping to manage connections more efficiently and securely. 

It's especially useful in serverless or high-concurrency scenarios like Lambda, containers, or bursty workloads.

Key Features

Feature	Description
Connection Pooling	Reduces the overhead of opening/closing database connections.
Improved Scalability	Handles thousands of client connections without overloading the database.
High Availability	Automatically distributed across multiple Availability Zones (AZs).
IAM Authentication	Works with AWS Identity and Access Management (IAM) for authentication.
TLS Encryption	Secure connection between your app and the database.
Failover Support	Works with Multi-AZ RDS/Aurora for seamless failovers.

 Benefits

• Better Application Performance: Reduces latency caused by frequent DB connections.
• Stability Under Load: Manages surges in connections (e.g., Lambda bursts).
• Security: Integrates with AWS Secrets Manager & IAM.
• Operational Simplicity: No need to manage connection pooling in application code.

 Use Cases

• Serverless applications (e.g., AWS Lambda)
• Microservices with unpredictable workloads
• Applications with frequent open/close DB connections
• Multi-tenant SaaS platforms

 How It Works

1. Your application connects to the RDS Proxy endpoint.
2. RDS Proxy maintains a pool of warm DB connections.
3. Requests are routed through the proxy to the database efficiently.

 Supported Databases

• Amazon RDS for MySQL
• Amazon RDS for PostgreSQL
• Amazon Aurora MySQL-compatible
• Amazon Aurora PostgreSQL-compatible

 Configuration Basics

How twtech set-up RDS Proxy:

1. Go to the RDS Console → Proxies.
2. Create a new proxy:
• Select DB engine and DB instance/cluster.
• Choose VPC and subnets.
• Provide IAM role and Secrets Manager secret.
3. Point the application to the new proxy endpoint.