Tag: Failover

AWS Regions provide fault isolation boundaries that prevent correlated failure and contain the impact from AWS service impairments to a single Region when they occur. You can use these fault boundaries to build multi-Region applications that consist of independent, fault-isolated replicas in each Region that limit shared fate scenarios. This allows you to build multi-Region […]

Choose Your Route Wisely Much like a roadway, the Internet is subject to congestion and blockage that cause slowdowns and at worst prevent packets from arriving at their destination. Like too many cars jamming themselves onto a highway, too much data over a route on the Internet results in slowdowns. Transatlantic cable breaks have much […]

Route 53 Health Checks provide the ability to verify that endpoints are reachable and that HTTP and HTTPS endpoints successfully respond. However, there are many situations where DNS failover would be useful, but TCP, HTTP, and HTTPS health checks alone can’t sufficiently determine the health of the endpoint. In these cases, it’s possible for an […]