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分享求助，spring cloud多个注册中心，eureka.client.serviceUrl.defaultZone中第二个无法发现服务
版本：
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.1.7.RELEASE</version>
<relativePath/> <!-- lookup parent from repository -->
</parent>
<spring-cloud.version>Greenwich.SR2</spring-cloud.version>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<!-- https://mvnrepository.com/artifact/org.springframework.cloud/spring-cloud-starter-netflix-eureka-server -->
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-starter-netflix-eureka-server</artifactId>
</dependency>
<dependencyManagement>
<dependencies>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-dependencies</artifactId>
<version>${spring-cloud.version}</version>
<type>pom</type>
<scope>import</scope>
</dependency>
</dependencies>
</dependencyManagement>
注册中心配置文件：
spring.application.name=server
server.port=7001
eureka.instance.hostname=localhost
eureka.client.serviceUrl.defaultZone=http://localhost:7002/eureka/,http://localhost:7001/eureka/
spring.application.name=server
server.port=7002
eureka.instance.hostname=localhost
eureka.client.serviceUrl.defaultZone=http://localhost:7002/eureka/,http://localhost:7001/eureka/
注册中心启动类：
@SpringBootApplication
@EnableEurekaServer
public class SpringEurekaApplication {
public static void main(String[] args) {
SpringApplication.run(SpringEurekaApplication.class, args);
}
}
服务配置文件：
server.port=9001
spring.application.name=product
eureka.client.serviceUrl.defaultZone=http://localhost:7001/eureka/,http://localhost:7002/eureka/
客户端启动类没有加eureka相关注解
此时访问http://localhost:7001，可以看到product，但是http://localhost:7002没有这个服务，两个注册中心可以互相发现，请教各位大牛，这种情况怎么处理？ 我把7001端口项目停止后，7002端口是可以发现这个服务的，怎么能让7001和7002同时发现这个服务？
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.1.7.RELEASE</version>
<relativePath/> <!-- lookup parent from repository -->
</parent>
<spring-cloud.version>Greenwich.SR2</spring-cloud.version>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<!-- https://mvnrepository.com/artifact/org.springframework.cloud/spring-cloud-starter-netflix-eureka-server -->
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-starter-netflix-eureka-server</artifactId>
</dependency>
<dependencyManagement>
<dependencies>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-dependencies</artifactId>
<version>${spring-cloud.version}</version>
<type>pom</type>
<scope>import</scope>
</dependency>
</dependencies>
</dependencyManagement>
注册中心配置文件：
spring.application.name=server
server.port=7001
eureka.instance.hostname=localhost
eureka.client.serviceUrl.defaultZone=http://localhost:7002/eureka/,http://localhost:7001/eureka/
spring.application.name=server
server.port=7002
eureka.instance.hostname=localhost
eureka.client.serviceUrl.defaultZone=http://localhost:7002/eureka/,http://localhost:7001/eureka/
注册中心启动类：
@SpringBootApplication
@EnableEurekaServer
public class SpringEurekaApplication {
public static void main(String[] args) {
SpringApplication.run(SpringEurekaApplication.class, args);
}
}
服务配置文件：
server.port=9001
spring.application.name=product
eureka.client.serviceUrl.defaultZone=http://localhost:7001/eureka/,http://localhost:7002/eureka/
客户端启动类没有加eureka相关注解
此时访问http://localhost:7001，可以看到product，但是http://localhost:7002没有这个服务，两个注册中心可以互相发现，请教各位大牛，这种情况怎么处理？ 我把7001端口项目停止后，7002端口是可以发现这个服务的，怎么能让7001和7002同时发现这个服务？
...全文
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CodeBoy975 2020-12-15
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检查下配置文件，比如：
注册中心A的配置文件
# 注册中心端口号
server.port=20000
eureka.instance.hostname=A
eureka.client.service-url.defaultZone=http://B:20001/eureka
注册中心B的配置文件
server.port=20001
eureka.instance.hostname=B
eureka.client.service-url.defaultZone=http://A:20001/eureka
并且注意：
不需要在后面添加自己服务的地址，比如注册中心A中你这样写就有问题：
server.port=20000
eureka.instance.hostname=A
eureka.client.service-url.defaultZone=http://A:20000/eureka,http://B:20001/eureka
请注意，A的地址放前面，这样的话，则最终是不会注册到B上去的。而且你注册中心A，不需要额外添加这个本地的地址注册。因为eureka会默认注册的。
javaifelse 2020-10-30
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同遇到，客户端注册多个注册中心，只有第一个注册成功
现在没有牛仔了 2020-09-23
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解决了吗 我的哥，我也遇到了 头疼啊
weixin_40443613 2020-05-28
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博主解决了吗？
二手木乃伊 2021-10-24
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大佬解决了吗
月牙先生 2020-04-20
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提供者的启动类加上@EnableDiscoveryClient这个注解
sh_c_1314 2019-08-16
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通过日志可以看出，你的注册中心集群就没搭建好，首先你没有在你电脑的window/system32/drivers/etc/hosts文件配置主机名（域名）==>127.0.0.1空格localhost
回环地址因为你用他做集群注册所以要显性配置出来，当然还是建议你是用其他的如你的真实ip（命令ipconfig查出）如我192.168.0.103空格隔开register1.com换行192.168.0.103 register2..com 当然了这些都是要根据部署时实际情况具体配置。
application中hostname要改7001的为register1.com URL为register2.com或对应的ip，7002反过来hostname register2.com URL为register1.com或对应ip进行注册，
当然product URL要为注册中心地址的至少1地址如http://register1.com:7001/eureka（数据同步，最好都写上）
如果你要用localhost的话，要在hosts文件配置他，application各处也要进行如上相应配置hostname，URL用127.0.0.1，建议你用不同域名配置,因为eureka内部逻辑调用查询第一个非回环地址方法
一个胖子IT男 2019-08-11
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我如果只注册7001，然后启动product服务，然后注册7002，这个时候7001和7002都可以看到product，但是先启动7001和7002两个注册中心，然后再启动这个product服务，7002就看不到这个服务，7001可以看到，是一些配置决定的吗，没有搞明白[/quote]
可以看一下product和7002的后半段日志吗[/quote]
断开7001后，7002可以扫描到这个服务，但是replicas那一块不显示掉线的
这是product在7001断线后的日志：
2019-08-11 09:42:25.502 INFO 3736 --- [trap-executor-0] c.n.d.s.r.aws.ConfigClusterResolver : Resolving eureka endpoints via configuration
2019-08-11 09:43:30.036 ERROR 3736 --- [freshExecutor-0] c.n.d.s.t.d.RedirectingEurekaHttpClient : Request execution error. endpoint=DefaultEndpoint{ serviceUrl='http://localhost:7001/eureka/}
com.sun.jersey.api.client.ClientHandlerException: java.net.ConnectException: Connection refused: connect
......
Caused by: java.net.ConnectException: Connection refused: connect
2019-08-11 09:43:30.036 WARN 3736 --- [freshExecutor-0] c.n.d.s.t.d.RetryableEurekaHttpClient : Request execution failed with message: java.net.ConnectException: Connection refused: connect
断开7001后，7002可以扫描到这个服务，但是replicas那一块不显示掉线的
这是product在7001断线后的日志：
2019-08-11 09:42:25.502 INFO 3736 --- [trap-executor-0] c.n.d.s.r.aws.ConfigClusterResolver : Resolving eureka endpoints via configuration
2019-08-11 09:43:30.036 ERROR 3736 --- [freshExecutor-0] c.n.d.s.t.d.RedirectingEurekaHttpClient : Request execution error. endpoint=DefaultEndpoint{ serviceUrl='http://localhost:7001/eureka/}
com.sun.jersey.api.client.ClientHandlerException: java.net.ConnectException: Connection refused: connect
......
Caused by: java.net.ConnectException: Connection refused: connect
2019-08-11 09:43:30.036 WARN 3736 --- [freshExecutor-0] c.n.d.s.t.d.RetryableEurekaHttpClient : Request execution failed with message: java.net.ConnectException: Connection refused: connect一个胖子IT男 2019-08-11
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我如果只注册7001，然后启动product服务，然后注册7002，这个时候7001和7002都可以看到product，但是先启动7001和7002两个注册中心，然后再启动这个product服务，7002就看不到这个服务，7001可以看到，是一些配置决定的吗，没有搞明白[/quote]
可以看一下product和7002的后半段日志吗[/quote]
7002后半段日志：
2019-08-11 09:36:18.216 INFO 4556 --- [ main] com.liang.EurekaServer2Application : Started EurekaServer2Application in 8.067 seconds (JVM running for 9.536)
2019-08-11 09:36:18.284 INFO 4556 --- [nfoReplicator-0] com.netflix.discovery.DiscoveryClient : DiscoveryClient_SERVER/DESKTOP-OH4590T:server:7002 - registration status: 204
2019-08-11 09:36:18.284 INFO 4556 --- [nio-7002-exec-2] o.a.c.c.C.[Tomcat].[localhost].[/] : Initializing Spring DispatcherServlet 'dispatcherServlet'
2019-08-11 09:36:18.284 INFO 4556 --- [nio-7002-exec-2] o.s.web.servlet.DispatcherServlet : Initializing Servlet 'dispatcherServlet'
2019-08-11 09:36:18.294 INFO 4556 --- [nio-7002-exec-2] o.s.web.servlet.DispatcherServlet : Completed initialization in 10 ms
2019-08-11 09:36:18.352 INFO 4556 --- [nio-7002-exec-2] c.n.e.registry.AbstractInstanceRegistry : Registered instance SERVER/DESKTOP-OH4590T:server:7001 with status UP (replication=false)
2019-08-11 09:36:47.949 INFO 4556 --- [freshExecutor-0] com.netflix.discovery.DiscoveryClient : Disable delta property : false
2019-08-11 09:36:47.949 INFO 4556 --- [freshExecutor-0] com.netflix.discovery.DiscoveryClient : Single vip registry refresh property : null
2019-08-11 09:36:47.949 INFO 4556 --- [freshExecutor-0] com.netflix.discovery.DiscoveryClient : Force full registry fetch : false
2019-08-11 09:36:47.949 INFO 4556 --- [freshExecutor-0] com.netflix.discovery.DiscoveryClient : Application is null : false
2019-08-11 09:36:47.951 INFO 4556 --- [freshExecutor-0] com.netflix.discovery.DiscoveryClient : Registered Applications size is zero : true
2019-08-11 09:36:47.951 INFO 4556 --- [freshExecutor-0] com.netflix.discovery.DiscoveryClient : Application version is -1: false
2019-08-11 09:36:47.951 INFO 4556 --- [freshExecutor-0] com.netflix.discovery.DiscoveryClient : Getting all instance registry info from the eureka server
2019-08-11 09:36:47.984 INFO 4556 --- [freshExecutor-0] com.netflix.discovery.DiscoveryClient : The response status is 200
2019-08-11 09:36:48.172 INFO 4556 --- [ Thread-12] c.n.e.registry.AbstractInstanceRegistry : Registered instance SERVER/DESKTOP-OH4590T:server:7002 with status UP (replication=true)
2019-08-11 09:36:48.172 INFO 4556 --- [ Thread-12] c.n.e.r.PeerAwareInstanceRegistryImpl : Got 1 instances from neighboring DS node
2019-08-11 09:36:48.172 INFO 4556 --- [ Thread-12] c.n.e.r.PeerAwareInstanceRegistryImpl : Renew threshold is: 1
2019-08-11 09:36:48.172 INFO 4556 --- [ Thread-12] c.n.e.r.PeerAwareInstanceRegistryImpl : Changing status to UP
2019-08-11 09:36:48.172 INFO 4556 --- [ Thread-12] e.s.EurekaServerInitializerConfiguration : Started Eureka Server
2019-08-11 09:37:48.179 INFO 4556 --- [a-EvictionTimer] c.n.e.registry.AbstractInstanceRegistry : Running the evict task with compensationTime 0ms
2019-08-11 09:38:48.180 INFO 4556 --- [a-EvictionTimer] c.n.e.registry.AbstractInstanceRegistry : Running the evict task with compensationTime 0ms
2019-08-11 09:38:48.180 INFO 4556 --- [a-EvictionTimer] c.n.e.registry.AbstractInstanceRegistry : Evicting 1 items (expired=1, evictionLimit=1)
2019-08-11 09:38:48.180 WARN 4556 --- [a-EvictionTimer] c.n.e.registry.AbstractInstanceRegistry : DS: Registry: expired lease for SERVER/DESKTOP-OH4590T:server:7002
2019-08-11 09:38:48.181 INFO 4556 --- [a-EvictionTimer] c.n.e.registry.AbstractInstanceRegistry : Cancelled instance SERVER/DESKTOP-OH4590T:server:7002 (replication=false)
2019-08-11 09:39:48.181 INFO 4556 --- [a-EvictionTimer] c.n.e.registry.AbstractInstanceRegistry : Running the evict task with compensationTime 0ms
这个可能是自我保护机制断开本身的连接了？ 在断开之前，也是一直扫描不到product服务
一个胖子IT男 2019-08-11
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我如果只注册7001，然后启动product服务，然后注册7002，这个时候7001和7002都可以看到product，但是先启动7001和7002两个注册中心，然后再启动这个product服务，7002就看不到这个服务，7001可以看到，是一些配置决定的吗，没有搞明白[/quote]
可以看一下product和7002的后半段日志吗[/quote]
product日志：
2019-08-11 09:37:21.944 INFO 3736 --- [ main] com.liang.EurekaProduct1Application : No active profile set, falling back to default profiles: default
2019-08-11 09:37:22.381 INFO 3736 --- [ main] o.s.cloud.context.scope.GenericScope : BeanFactory id=9574fb49-23d4-3b9b-afa9-3f99770a0f1c
2019-08-11 09:37:22.445 INFO 3736 --- [ main] trationDelegate$BeanPostProcessorChecker : Bean 'org.springframework.cloud.autoconfigure.ConfigurationPropertiesRebinderAutoConfiguration' of type [org.springframework.cloud.autoconfigure.ConfigurationPropertiesRebinderAutoConfiguration$$EnhancerBySpringCGLIB$$d748c9c4] is not eligible for getting processed by all BeanPostProcessors (for example: not eligible for auto-proxying)
2019-08-11 09:37:22.632 INFO 3736 --- [ main] o.s.b.w.embedded.tomcat.TomcatWebServer : Tomcat initialized with port(s): 9001 (http)
2019-08-11 09:37:22.648 INFO 3736 --- [ main] o.apache.catalina.core.StandardService : Starting service [Tomcat]
2019-08-11 09:37:22.648 INFO 3736 --- [ main] org.apache.catalina.core.StandardEngine : Starting Servlet engine: [Apache Tomcat/9.0.22]
2019-08-11 09:37:22.773 INFO 3736 --- [ main] o.a.c.c.C.[Tomcat].[localhost].[/] : Initializing Spring embedded WebApplicationContext
2019-08-11 09:37:22.773 INFO 3736 --- [ main] o.s.web.context.ContextLoader : Root WebApplicationContext: initialization completed in 829 ms
2019-08-11 09:37:22.820 WARN 3736 --- [ main] c.n.c.sources.URLConfigurationSource : No URLs will be polled as dynamic configuration sources.
2019-08-11 09:37:22.820 INFO 3736 --- [ main] c.n.c.sources.URLConfigurationSource : To enable URLs as dynamic configuration sources, define System property archaius.configurationSource.additionalUrls or make config.properties available on classpath.
2019-08-11 09:37:22.820 WARN 3736 --- [ main] c.n.c.sources.URLConfigurationSource : No URLs will be polled as dynamic configuration sources.
2019-08-11 09:37:22.820 INFO 3736 --- [ main] c.n.c.sources.URLConfigurationSource : To enable URLs as dynamic configuration sources, define System property archaius.configurationSource.additionalUrls or make config.properties available on classpath.
2019-08-11 09:37:22.960 INFO 3736 --- [ main] o.s.s.concurrent.ThreadPoolTaskExecutor : Initializing ExecutorService 'applicationTaskExecutor'
2019-08-11 09:37:24.320 INFO 3736 --- [ main] o.s.c.n.eureka.InstanceInfoFactory : Setting initial instance status as: STARTING
2019-08-11 09:37:24.349 INFO 3736 --- [ main] com.netflix.discovery.DiscoveryClient : Initializing Eureka in region us-east-1
2019-08-11 09:37:24.849 INFO 3736 --- [ main] c.n.d.provider.DiscoveryJerseyProvider : Using JSON encoding codec LegacyJacksonJson
2019-08-11 09:37:24.849 INFO 3736 --- [ main] c.n.d.provider.DiscoveryJerseyProvider : Using JSON decoding codec LegacyJacksonJson
2019-08-11 09:37:24.943 INFO 3736 --- [ main] c.n.d.provider.DiscoveryJerseyProvider : Using XML encoding codec XStreamXml
2019-08-11 09:37:24.943 INFO 3736 --- [ main] c.n.d.provider.DiscoveryJerseyProvider : Using XML decoding codec XStreamXml
2019-08-11 09:37:25.099 INFO 3736 --- [ main] c.n.d.s.r.aws.ConfigClusterResolver : Resolving eureka endpoints via configuration
2019-08-11 09:37:25.474 INFO 3736 --- [ main] com.netflix.discovery.DiscoveryClient : Disable delta property : false
2019-08-11 09:37:25.488 INFO 3736 --- [ main] com.netflix.discovery.DiscoveryClient : Single vip registry refresh property : null
2019-08-11 09:37:25.488 INFO 3736 --- [ main] com.netflix.discovery.DiscoveryClient : Force full registry fetch : false
2019-08-11 09:37:25.488 INFO 3736 --- [ main] com.netflix.discovery.DiscoveryClient : Application is null : false
2019-08-11 09:37:25.488 INFO 3736 --- [ main] com.netflix.discovery.DiscoveryClient : Registered Applications size is zero : true
2019-08-11 09:37:25.488 INFO 3736 --- [ main] com.netflix.discovery.DiscoveryClient : Application version is -1: true
2019-08-11 09:37:25.488 INFO 3736 --- [ main] com.netflix.discovery.DiscoveryClient : Getting all instance registry info from the eureka server
2019-08-11 09:37:25.631 INFO 3736 --- [ main] com.netflix.discovery.DiscoveryClient : The response status is 200
2019-08-11 09:37:25.646 INFO 3736 --- [ main] com.netflix.discovery.DiscoveryClient : Starting heartbeat executor: renew interval is: 30
2019-08-11 09:37:25.646 INFO 3736 --- [ main] c.n.discovery.InstanceInfoReplicator : InstanceInfoReplicator onDemand update allowed rate per min is 4
2019-08-11 09:37:25.646 INFO 3736 --- [ main] com.netflix.discovery.DiscoveryClient : Discovery Client initialized at timestamp 1565487445646 with initial instances count: 2
2019-08-11 09:37:25.646 INFO 3736 --- [ main] o.s.c.n.e.s.EurekaServiceRegistry : Registering application PRODUCT with eureka with status UP
2019-08-11 09:37:25.646 INFO 3736 --- [ main] com.netflix.discovery.DiscoveryClient : Saw local status change event StatusChangeEvent [timestamp=1565487445646, current=UP, previous=STARTING]
2019-08-11 09:37:25.646 INFO 3736 --- [nfoReplicator-0] com.netflix.discovery.DiscoveryClient : DiscoveryClient_PRODUCT/DESKTOP-OH4590T:product:9001: registering service...
2019-08-11 09:37:25.693 INFO 3736 --- [ main] o.s.b.w.embedded.tomcat.TomcatWebServer : Tomcat started on port(s): 9001 (http) with context path ''
2019-08-11 09:37:25.693 INFO 3736 --- [ main] .s.c.n.e.s.EurekaAutoServiceRegistration : Updating port to 9001
2019-08-11 09:37:25.693 INFO 3736 --- [ main] com.liang.EurekaProduct1Application : Started EurekaProduct1Application in 5.584 seconds (JVM running for 6.657)
2019-08-11 09:37:25.708 INFO 3736 --- [nfoReplicator-0] com.netflix.discovery.DiscoveryClient : DiscoveryClient_PRODUCT/DESKTOP-OH4590T:product:9001 - registration status: 204
sh_c_1314 2019-08-11
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我如果只注册7001，然后启动product服务，然后注册7002，这个时候7001和7002都可以看到product，但是先启动7001和7002两个注册中心，然后再启动这个product服务，7002就看不到这个服务，7001可以看到，是一些配置决定的吗，没有搞明白[/quote]
可以看一下product和7002的后半段日志吗
一个胖子IT男 2019-08-11
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我如果只注册7001，然后启动product服务，然后注册7002，这个时候7001和7002都可以看到product，但是先启动7001和7002两个注册中心，然后再启动这个product服务，7002就看不到这个服务，7001可以看到，是一些配置决定的吗，没有搞明白
sh_c_1314 2019-08-10
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开启客户端，fetch－registry拉取服务列表，集群同步注册信息应该可以了
sh_c_1314 2019-08-10
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客户端启动类加@EnableDiscoveryClient开启客户端试试
一个胖子IT男 2019-08-10
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试过了，还是不行
sh_c_1314 2019-08-10
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把application.properties文件改一下，端口7001的eureka的defaultZone=http://localhost:7002/eureka/,端口7002的defaultZone=http://localhost:7001/eureka/互相注册到对方eureka服务器，eureka都默认注册自己了
