High Availability Architecture
High Availability Architecture is a design approach for systems that aims to ensure an agreed level of operational performance, typically uptime, over a given period. It involves implementing redundant components, failover mechanisms, and fault tolerance to minimize downtime and maintain service continuity in the event of hardware failures, software issues, or other disruptions. This concept is critical for applications where reliability and constant accessibility are paramount, such as in e-commerce, banking, or healthcare systems.
Developers should learn and implement High Availability Architecture when building systems that require minimal downtime, such as mission-critical applications, online services, or infrastructure supporting large user bases. It is essential for ensuring business continuity, meeting service level agreements (SLAs), and enhancing user trust by preventing outages. Use cases include cloud-based platforms, distributed databases, and microservices architectures where redundancy and resilience are key to handling failures gracefully.