Amazon Aurora: High-Performance Managed Database

What is Amazon Aurora?

Amazon Aurora is a proprietary, cloud-optimized relational database service from AWS. It is not open-source, but it is fully compatible with MySQL and PostgreSQL, allowing applications to use the same database drivers.

✅ Key Benefits:

• 5x performance improvement over MySQL on RDS.
• 3x performance improvement over PostgreSQL on RDS.
• Automatic storage scaling (10GB to 128TB).
• Up to 15 Read Replicas with faster replication than MySQL RDS.
• Instant failover for high availability.
• Cross-Region Replication for disaster recovery.

1. High Availability & Performance in Aurora

Storage Architecture

Aurora automatically replicates data across three Availability Zones (AZs) and maintains six copies of your data.

✔ Writes require only 4 out of 6 copies to succeed.

✔ Reads require only 3 out of 6 copies, making it highly available.

✔ Self-healing storage automatically fixes corrupted data blocks.

✔ Multi-AZ storage replication ensures no data loss in case of failure.

Failover & Replication

• Aurora supports failover in less than 30 seconds (much faster than RDS Multi-AZ).