KubeCon 2023在上海做的一个关于Istio访问日志的演讲《Detailed Parse and Reproduce Response Flags of Istio Access Log Based on Production Use Case》。解析和重现了在当时解决客户问题时碰到的各种应答日志。 第八个关注的Response Flag是NR，全称是NoRouteFound，官方定义表示No route configured for a given request in addition to 404 response code or no matching filter chain for a downstream …

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