Serverless scaling with Amazon Aurora PostgreSQL Limitless Database (DAT338)
Aurora Postgres Limitless Database
Overview
The video discusses the challenges of scaling databases beyond the limits of a single database instance, and how Amazon Aurora's Postgres Limitless Database solution addresses these challenges.
The key takeaways are:
Challenges of Scaling Databases
As usage increases, businesses start hitting the limits of what a single database can offer.
The common approach is to break the database into smaller components (sharding), which introduces management complexities such as:
Determining which database to query from the application layer
Ensuring data consistency across multiple databases
Continuously redistributing data as nodes fail or become overloaded
Overprovisioning resources to handle capacity management
Aurora Postgres Limitless Database
Aurora Postgres Limitless Database is a managed, horizontally scalable solution that provides the power of a sharded solution with the simplicity of a single database cluster.
Key features:
Scales to millions of write transactions per second and petabytes of data
Automatically scales vertically and horizontally based on workload
Charges only for the resources used, eliminating the need for overprovisioning
Provides 99.99% availability through automatic failover and redundancy
Deployment and Architecture
The deployment process is simple, with a few clicks in the AWS console to set the desired capacity range and compute redundancy.
Under the hood, the system consists of:
Distributed transaction routers that handle query parsing, planning, and transaction coordination
Sharded data access nodes that store and manage the data, scaling independently based on load
Failover nodes for compute redundancy, ensuring high availability
Performance and Scalability
The system demonstrated the ability to achieve 2.55 million commits per second with an average latency of 2.4 milliseconds on a 100 billion row table.
This level of performance and scalability is made possible by the distributed architecture and the ability to co-locate related data on the same shards for efficient query processing.
Call to Action
The Aurora Postgres Limitless Database is generally available, and users are encouraged to explore the service through the AWS console and documentation.
Related sessions are available, and users are advised to provide feedback through the survey.
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