Eureka集群不稳定

如图所示一个消费者order，两个服务提供者，一个7001,7002构成的eureka集群，当我全部打开第一次访问时，报错

但是当我把order关了重启或者刷新两个eureka时再去访问就能得到正确的结果这是什么原因呢？
下图为注册中心

server:
  port: 80
spring:
  application:
   name: cloud-order-service
eureka:
  client:
    register-with-eureka: true
    fetch-registry: true
    service-url:
      defaultZone: http://eureka7001.com:7001/eureka,http://eureka7002.com:7002/eureka

server:
  port: 8001
spring:
  application:
    name: cloud-payment-service
  datasource:
    type: com.alibaba.druid.pool.DruidDataSource
    driver-class-name: org.gjt.mm.mysql.Driver
    url: jdbc:mysql://localhost:3306/db2019?useUnicode=true&characterEncoding=utf-8&useSSL=false
    username: root
    password: root
mybatis:
  mapper-locations: classpath:mapper/*.xml
  type-aliases-package: com.wjz.springcloud.entities
eureka:
  client:
    register-with-eureka: true
    fetch-registry: true
    service-url:
      defaultZone: http://eureka7001.com:7001/eureka,http://eureka7002.com:7002/eureka

server:
  port: 8002
spring:
  application:
    name: cloud-payment-service
  datasource:
    type: com.alibaba.druid.pool.DruidDataSource
    driver-class-name: org.gjt.mm.mysql.Driver
    url: jdbc:mysql://localhost:3306/db2019?useUnicode=true&characterEncoding=utf-8&useSSL=false
    username: root
    password: root
mybatis:
  mapper-locations: classpath:mapper/*.xml
  type-aliases-package: com.wjz.springcloud.entities
eureka:
  client:
    register-with-eureka: true
    fetch-registry: true
    service-url:
      defaultZone: http://eureka7001.com:7001/eureka,http://eureka7002.com:7002/eureka

@RestController
@Slf4j
public class OrderController {
//    private final static String PAYMENT_URL = "http://localhost:8001"; 不能写死
    private final static String PAYMENT_URL = "http://CLOUD-PAYMENT-SERVICE";
    @Autowired
    private RestTemplate restTemplate;//通过这个对象去访问提供的服务
    @GetMapping("/consumer/payment/create")
    public CommonResult<Payment> create(Payment payment){
        return restTemplate.postForObject(PAYMENT_URL + "/payment/create",payment,CommonResult.class);
    }
    @GetMapping("/consumer/payment/get/{id}")
    public CommonResult<Payment> getPayment(@PathVariable("id") Long id){
        return restTemplate.getForObject(PAYMENT_URL+ "/payment/get/" + id,CommonResult.class);
    }
}

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