报错信息如下：
2018-08-31 11:45:33.619 WARN 1068 --- [freshExecutor-0] c.n.d.s.t.d.RetryableEurekaHttpClient : Request execution failed with message: java.net.ConnectException: Connection refused: connect2018-08-31 11:45:33.619 WARN 1068 ---
阅读背景：
Cannot execute request on any known server或DiscoveryClient_UNKNOWN/DESKTOP-MQ8D0C9:8761
来源：互联网
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