使用Spring cloud Netflix OSS对微服务进行负载平衡

Question

我有一个使用Spring Boot和Netflix OSS构建的微服务。我使用过中央配置服务器、Eureka和Zuul。由于可伸缩性，服务的多个实例运行在不同的端口上。所有实例都在Eureka中注册，但请求只会发送到最后一个注册的服务器。

spring.application.name=book-service
server.port=0

eureka.client.region = default
eureka.client.registryFetchIntervalSeconds = 5
eureka.client.serviceUrl.defaultZone=http://discUser:discPassword@localhost:10082/eureka/

#eureka.instance.metadataMap.instanceId=${spring.application.name}:${spring.application.instance_id:${random.value}}
eureka.instance.instanceId=${spring.application.name}:${spring.application.instance_id:${random.value}}
eureka.instance.leaseRenewalIntervalInSeconds=5
eureka.instance.leaseExpirationDurationInSeconds=5

spring.application.name=discovery
server.port=10082

eureka.instance.hostname=localhost

eureka.client.serviceUrl.defaultZone=http://discUser:discPassword@localhost:10082/eureka/
eureka.client.register-with-eureka=false
eureka.client.fetch-registry=false

spring.session.store-type=hash-map

ZUUL配置

spring.application.name=gateway
server.port=10080

eureka.client.region = default
eureka.client.registryFetchIntervalSeconds = 5

management.security.sessions=always

zuul.routes.book-service.path=/book-service/**
zuul.routes.book-service.sensitive-headers=Set-Cookie,Authorization
hystrix.command.book-service.execution.isolation.thread.timeoutInMilliseconds=600000

#zuul.routes.rating-service.path=/rating-service/**
#zuul.routes.rating-service.sensitive-headers=Set-Cookie,Authorization
#hystrix.command.rating-service.execution.isolation.thread.timeoutInMilliseconds=600000

zuul.routes.discovery.path=/discovery/**
zuul.routes.discovery.sensitive-headers=Set-Cookie,Authorization
zuul.routes.discovery.url=http://localhost:8082
hystrix.command.discovery.execution.isolation.thread.timeoutInMilliseconds=600000

logging.level.org.springframework.web.=debug
logging.level.org.springframework.security=debug
logging.level.org.springframework.cloud.netflix.zuul=debug

spring.session.store-type=hash-map

Answer 1

正确地在Eureka注册应用程序就可以了。

以下条目将在尤里卡唯一注册服务。

#eureka.instance.metadataMap.instanceId=${spring.application.name}:${spring.application.instance_id:${random.value}}
eureka.instance.instanceId=${spring.application.name}:${spring.application.instance_id:${random.value}}