为什么Spring Boot应用程序总是从配置服务中获取配置？

Question

06:04:28.586 [serviceId:xxx-service/traceId:545d584f10da3123/spanId:545d584f10da3123/parentId:] INFO  o.s.c.c.c.ConfigServicePropertySourceLocator.getRemoteEnvironment - Fetching config from server at : http://config-service
06:04:30.135 [serviceId:xxx-service/traceId:545d584f10da3123/spanId:545d584f10da3123/parentId:] INFO  o.s.c.c.c.ConfigServicePropertySourceLocator.log - Located environment: name=xxxservice, profiles=[dev], label=master, version=00ed4aebcd466c88b4a7df61296652944642cdc8, state=null
06:09:30.367 [serviceId:xxx-service/traceId:519fdde3a2d8ce5a/spanId:519fdde3a2d8ce5a/parentId:] INFO  o.s.c.c.c.ConfigServicePropertySourceLocator.getRemoteEnvironment - Fetching config from server at : http://config-service
06:09:31.928 [serviceId:xxx-service/traceId:519fdde3a2d8ce5a/spanId:519fdde3a2d8ce5a/parentId:] INFO  o.s.c.c.c.ConfigServicePropertySourceLocator.log - Located environment: name=xxxservice, profiles=[dev], label=master, version=00ed4aebcd466c88b4a7df61296652944642cdc8, state=null
06:14:32.035 [serviceId:xxx-service/traceId:e32c45c3a5c3fcca/spanId:e32c45c3a5c3fcca/parentId:] INFO  o.s.c.c.c.ConfigServicePropertySourceLocator.getRemoteEnvironment - Fetching config from server at : http://config-service
06:14:33.611 [serviceId:xxx-service/traceId:e32c45c3a5c3fcca/spanId:e32c45c3a5c3fcca/parentId:] INFO  o.s.c.c.c.ConfigServicePropertySourceLocator.log - Located environment: name=xxxservice, profiles=[dev], label=master, version=00ed4aebcd466c88b4a7df61296652944642cdc8, state=null
06:19:32.033 [serviceId:xxx-service/traceId:16fc982b0638d4a6/spanId:16fc982b0638d4a6/parentId:] INFO  o.s.c.c.c.ConfigServicePropertySourceLocator.getRemoteEnvironment - Fetching config from server at : http://config-service
06:19:33.495 [serviceId:xxx-service/traceId:16fc982b0638d4a6/spanId:16fc982b0638d4a6/parentId:] INFO  o.s.c.c.c.ConfigServicePropertySourceLocator.log - Located environment: name=xxxservice, profiles=[dev], label=master, version=00ed4aebcd466c88b4a7df61296652944642cdc8, state=null
06:24:32.036 [serviceId:xxx-service/traceId:f4eae364e2624d58/spanId:f4eae364e2624d58/parentId:] INFO  o.s.c.c.c.ConfigServicePropertySourceLocator.getRemoteEnvironment - Fetching config from server at : http://config-service
06:24:33.640 [serviceId:xxx-service/traceId:f4eae364e2624d58/spanId:f4eae364e2624d58/parentId:] INFO  o.s.c.c.c.ConfigServicePropertySourceLocator.log - Located environment: name=xxxservice, profiles=[dev], label=master, version=00ed4aebcd466c88b4a7df61296652944642cdc8, state=null

spring:
  profiles:
    active: dev
  cloud:
    config:
      name: xxxservice
      label: master
      uri: http://config-service

null

Answer 1

我不知道为什么您在其他服务中没有看到这种情况，但我认为这种行为是由于客户机希望定期检查服务器的健康状况。来自Spring Cloud Config客户端文档：

7.8.1健康指标

配置客户端提供一个尝试从配置服务器加载配置的Spring Boot Health指示器。可以通过设置health.config.enabled=false来禁用健康指示器。由于性能原因，响应也被缓存。默认的缓存生存时间是5分钟。若要更改该值，请设置Health.config.time-to-live属性（以毫秒为单位）。