failed to req API:/nacos/v1/ns/instance after all servers([127.0.0.1:8848])

[imjcoder]

Nacos does clustering and nginx does load balancing. If this problem occurs, start multiple projects. One can register, and the other can't. can you reply in Chinese? Anyway, no foreigner uses this thing.

com.alibaba.nacos.api.exception.NacosException: failed to req API:/nacos/v1/ns/instance after all servers([127.0.0.1:8848]) tried: ErrCode:400, ErrMsg:

Whitelabel Error Page

This application has no explicit mapping for /error, so you are seeing this as a fallback.

Fri May 20 18:35:58 CST 2022

There was an unexpected error (type=Bad Request, status=400).

receive invalid redirect request from peer 192.168.10.185

at com.alibaba.nacos.client.naming.net.NamingProxy.reqApi(NamingProxy.java:556) ~[nacos-client-1.4.1.jar:na] at com.alibaba.nacos.client.naming.net.NamingProxy.reqApi(NamingProxy.java:498) ~[nacos-client-1.4.1.jar:na] at com.alibaba.nacos.client.naming.net.NamingProxy.reqApi(NamingProxy.java:493) ~[nacos-client-1.4.1.jar:na] at com.alibaba.nacos.client.naming.net.NamingProxy.registerService(NamingProxy.java:246) ~[nacos-client-1.4.1.jar:na] at com.alibaba.nacos.client.naming.NacosNamingService.registerInstance(NacosNamingService.java:212) ~[nacos-client-1.4.1.jar:na] at com.alibaba.cloud.nacos.registry.NacosServiceRegistry.register(NacosServiceRegistry.java:74) ~[spring-cloud-starter-alibaba-nacos-discovery-2021.1.jar:2021.1] at org.springframework.cloud.client.serviceregistry.AbstractAutoServiceRegistration.register(AbstractAutoServiceRegistration.java:232) ~[spring-cloud-commons-3.0.4.jar:3.0.4] at com.alibaba.cloud.nacos.registry.NacosAutoServiceRegistration.register(NacosAutoServiceRegistration.java:78) ~[spring-cloud-starter-alibaba-nacos-discovery-2021.1.jar:2021.1] at org.springframework.cloud.client.serviceregistry.AbstractAutoServiceRegistration.start(AbstractAutoServiceRegistration.java:133) ~[spring-cloud-commons-3.0.4.jar:3.0.4] at org.springframework.cloud.client.serviceregistry.AbstractAutoServiceRegistration.bind(AbstractAutoServiceRegistration.java:98) ~[spring-cloud-commons-3.0.4.jar:3.0.4] at org.springframework.cloud.client.serviceregistry.AbstractAutoServiceRegistration.onApplicationEvent(AbstractAutoServiceRegistration.java:86) ~[spring-cloud-commons-3.0.4.jar:3.0.4] at org.springframework.cloud.client.serviceregistry.AbstractAutoServiceRegistration.onApplicationEvent(AbstractAutoServiceRegistration.java:47) ~[spring-cloud-commons-3.0.4.jar:3.0.4] at org.springframework.context.event.SimpleApplicationEventMulticaster.doInvokeListener(SimpleApplicationEventMulticaster.java:176) ~[spring-context-5.3.13.jar:5.3.13] at org.springframework.context.event.SimpleApplicationEventMulticaster.invokeListener(SimpleApplicationEventMulticaster.java:169) ~[spring-context-5.3.13.jar:5.3.13] at org.springframework.context.event.SimpleApplicationEventMulticaster.multicastEvent(SimpleApplicationEventMulticaster.java:143) ~[spring-context-5.3.13.jar:5.3.13] at org.springframework.context.support.AbstractApplicationContext.publishEvent(AbstractApplicationContext.java:421) ~[spring-context-5.3.13.jar:5.3.13] at org.springframework.context.support.AbstractApplicationContext.publishEvent(AbstractApplicationContext.java:378) ~[spring-context-5.3.13.jar:5.3.13] at org.springframework.boot.web.servlet.context.WebServerStartStopLifecycle.start(WebServerStartStopLifecycle.java:46) ~[spring-boot-2.5.7.jar:2.5.7] at org.springframework.context.support.DefaultLifecycleProcessor.doStart(DefaultLifecycleProcessor.java:178) ~[spring-context-5.3.13.jar:5.3.13] at org.springframework.context.support.DefaultLifecycleProcessor.access$200(DefaultLifecycleProcessor.java:54) ~[spring-context-5.3.13.jar:5.3.13] at org.springframework.context.support.DefaultLifecycleProcessor$LifecycleGroup.start(DefaultLifecycleProcessor.java:356) ~[spring-context-5.3.13.jar:5.3.13] at java.base/java.lang.Iterable.forEach(Iterable.java:75) ~[na:na] at org.springframework.context.support.DefaultLifecycleProcessor.startBeans(DefaultLifecycleProcessor.java:155) ~[spring-context-5.3.13.jar:5.3.13] at org.springframework.context.support.DefaultLifecycleProcessor.onRefresh(DefaultLifecycleProcessor.java:123) ~[spring-context-5.3.13.jar:5.3.13] at org.springframework.context.support.AbstractApplicationContext.finishRefresh(AbstractApplicationContext.java:935) ~[spring-context-5.3.13.jar:5.3.13] at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:586) ~[spring-context-5.3.13.jar:5.3.13] at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.refresh(ServletWebServerApplicationContext.java:145) ~[spring-boot-2.5.7.jar:2.5.7] at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:765) ~[spring-boot-2.5.7.jar:2.5.7] at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:445) ~[spring-boot-2.5.7.jar:2.5.7] at org.springframework.boot.SpringApplication.run(SpringApplication.java:338) ~[spring-boot-2.5.7.jar:2.5.7] at org.springframework.boot.SpringApplication.run(SpringApplication.java:1354) ~[spring-boot-2.5.7.jar:2.5.7] at org.springframework.boot.SpringApplication.run(SpringApplication.java:1343) ~[spring-boot-2.5.7.jar:2.5.7] at com.sc.NacosRibbonApplication.main(NacosRibbonApplication.java:21) ~[classes/:na]

[KomachiSion]

There was an unexpected error (type=Bad Request, status=400). receive invalid redirect request from peer 192.168.10.185

means your cluster deploy with problem so that one node receive an illegal request.

[JackSparrowImg]

我也遇到了类似问题，我的nacos在本地运行，我的springCloud项目可以正确的向nacos注册服务，但是我将nacos运行在我的服务器中的时候，一直报错failed to req API:/nacos/v1/ns/instance after all servers([服务器ip:8848]) tried: ErrCode:503, ErrMsg:server is DOWN now, please try again later!，我确定nacos服务正确启动，并且可以访问到nacos的控制台。