Fault positioning method and device for service interface

The invention provides a fault positioning method and device for a service interface. The method comprises the steps that execution tracking fingerprints of at least part of execution nodes of a target service are acquired, the execution tracking fingerprints comprise request domain parameters and response domain parameters, and the request domain parameters comprise time information used for recording service requests initiated to downstream execution nodes; the response domain parameter comprises time information used for recording the feedback service response of the upstream execution node. And determining a link working state of the target service based on request domain parameters and response domain parameters in the execution tracking fingerprints of the at least part of execution nodes. And performing service interface fault analysis on the link working state, and determining a fault service interface in the target service. 本申请提供一种业务接口的故障定位方法及装置。方法包括：获取目标业务的至少部分执行节点的执行追踪指纹，执行追踪指纹包括请求域参数和响应域参数，请求域参数包括