Real-World Examples of high-availability Systems
- Amazon Web Services (AWS): To guarantee the continuous operation of cloud-based apps and services, AWS offers a variety of high-availability services, such as Elastic Load Balancing (ELB), Auto Scaling, and Multi-AZ (Availability Zone) deployment.
- Google Kubernetes Engine (GKE): GKE provides managed Kubernetes clusters with integrated fault tolerance, rolling updates, and automatic scaling, allowing containerized applications to have high availability.
- Netflix: To guarantee continuous streaming and a positive user experience, Netflix uses a microservices architecture that is hosted on Amazon AWS and features redundant services and data replication across multiple regions.
How Do We Design for High Availability?
High system availability is crucial for companies in a variety of industries in the current digital era, as system outages can cause large losses. High availability is the capacity of a system to continue functioning and being available to users despite errors in software, hardware, or other disruptions. In this article, we will deep dive into the specification and design to achieve high availability.
Important Topics for Designing for High Availability
- What is High Availability?
- Factors Influencing Availability
- Design Considerations for High Availability
- Architectural Patterns for High Availability
- Technologies and Tools for High Availability
- Best Practices for Designing Highly Available Systems
- Real-World Examples of high-availability Systems
- Challenges and Tradeoffs in Achieving High Availability