Netflix Hystrix is a well-known OSS framework for Circuit Breaker in Java. It is lesser known for its application in operational monitoring and debugging production issues, which is one of the biggest usages of Hystrix inside Netflix, where Hystrix metrics are widely used by edge services and dependent microservices to monitor dependencies’ health (including network/proxy issues and trending). When there is a production issue, this data is invaluable in isolating the problem area (within a few minutes) and expediting the recovery process.
Billy Yuen explains how Netflix applies Hystrix to existing applications with undocumented dependencies and implements DevOps monitoring with Hystrix Metrics. Billy also outlines the anti-patterns learned from implementing Hystrix.
Billy Yuen is a principal engineer on Intuit’s Platform team focusing on the Payment API, system resiliency, and monitoring. Previously, Billy worked on Netflix’s Edge Services team along with Ben Christensen (creator of Hystrix) to build the next generation of edge-service infrastructure to support millions of customers (more than 3 billion requests per day) with high scalability, resilience to failure, and rapid innovation.
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