针对“gateway no servers available for service”问题,可以从以下几个方面进行排查和解决: 检查网络连接是否正常: 确保网关服务与其他服务之间的网络连接是通畅的。可以使用ping或telnet等工具测试网络连接。 确认网关服务是否已启动: 确保网关服务已经成功启动,并且正在运行。可以通过查看服务状态或使
}//微服务变更回调privatevoidserviceChange(Event event){//Nacos的数据if(eventinstanceofNamingEvent){NamingEventnamingEvent=(NamingEvent) event;//获得微服务名称(带组名的)Stringname=namingEvent.getServiceName();//获得微服务名称name = NamingUtils.getServiceName(name);//存储微服务实例对象this.serviceInstanc...
- RewritePath=/api/(?<segment>.*), /renren-fast/$\{segment} uri: lb//demo-server 就会出现这个问题,但是 uri: http://localhost:8080却不会No servers available for service 由于springcloud2020弃用了Ribbon,因此Alibaba在2021版本nacos中删除了Ribbon的jar包,因此无法通过lb路由到指定微服务,出现了503情况。
private Response<ServiceInstance> getServiceInstanceEmptyResponse() { log.warn("No servers available for service: " + this.serviceId); return new EmptyResponse(); } } 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 14. 15. 16. 17. 18. 19. 20. 21. 22. 23. 24. 25. 26....
log.warn("No servers available for service: " + serviceId); } return new EmptyResponse(); } if (Objects.equals(type, LoadBalancerTypeEnum.ROUND_ROBIN)){ return this.getRoundRobinInstance(instances); }else if (Objects.equals(type, LoadBalancerTypeEnum.RANDOM)){ ...
这就是上面的Zone aware logic..这行日志的出处,经调试发现在getLoadBalancerStats().getAvailableZones()这一步返回的服务是空列表,说明这里没有存储任何服务信息,所以才导致最终的503 Service Unavailable 继续跟进去看getAvailableZones的代码,如下 public class LoadBalancerStats implements IClientConfigAware { //...
extends Server>>(); // 获取可用服务keys public Set<String> getAvailableZones() { return upServerListZoneMap.keySet(); }可以看到ribbon是在LoadBalancerStats中维护了一个map来缓存所有可用服务,而问题的原因也大概明了了:gateway获取到了服务变更事件,但并没有及时更新ribbon的服务列表缓存ribbon的刷新缓存机制...
Github的这个Flink sql Gateway貌似很久没有更新了。但是它毕竟只是与BE交互的FE,还是可以参考。 启动Gateway 代码语言:javascript 代码运行次数:0 运行 AI代码解释 ./bin/sql-gateway.sh-h The following options are available:-d,--defaults<defaultconfiguration file>The propertieswithwhich everynewsessionis initi...
If you setsource_typeto1, setcidrto a CIDR block of your on-premises servers connected to the VPC through Direct Connect or Cloud Connect. source_type No Integer 0: VPC. Eithernetwork_idorcidrcan be specified. 1: Direct Connect/Cloud Connect. Onlycidrcan be specified. ...
You have obtained the usernames and passwords for logging in to FusionSphere OpenStack and Service OM. You have obtained the password for logging in to the iBMC system of the server. The hard disks of the same model, hardware product documents, and required tools are available. You have obta...