Equifax and AWS: How One Minor Thing Can Pull Down Performance
It's always fascinating to us how your choice of Cloud Host can impact your performance. For example, we noticed some issues with the Equifax API we monitor. There are a lot of issues. Over the last week alone, there have been protracted periods when the endpoint doesn't respond to queries at all which affected everyone. However, we did notice a significant difference in latency between the 4 major clouds. AWS calls were, on average, almost 1.5 seconds longer than calls made from other clouds. When we drilled into this, we could see that for some reason DNS calls made [...]