我在我的本地机器上玩所有这些梦幻般的Spring Cloud . 我有一个基于Zuul的API网关发现并调用Spring Data Rest服务 . 效果很好 .
现在我想介绍Spectator和Atlas . 我似乎无法正确配置此配置 . 如果我在Zuul服务上启用Atlas,Atlas客户端的RestTemplate将失败,因为Ribbon尝试包装它,而Ribbon不知道“atlas” . 如果我为Atlas添加Ribbon Client配置,那么我的API网关调用会中断 . 有没有办法从Ribbon包装中排除atlas路线?我错过了什么?见下文:
我已经定义了一个指向localhost的主机名“atlas” . Atlas服务器正在运行 .
Zuul / Api网关依赖:
spring-boot-starter-parent: 1.3.2.RELEASE
spring-boot-starter-actuator
spring-cloud-starter-config
spring-cloud-starter-eureka
spring-cloud-starter-hystrix
spring-cloud-starter-zuul
spring-cloud-starter-stream-rabbit
spring-boot-starter-hateoas
spring-boot-starter-test
spring-cloud-starter-spectator
spring-cloud-starter-atlas
Zuul / API网关应用属性 -
hystrix.command.default.execution.isolation.strategy: SEMAPHORE
netflix.atlas.uri=http://atlas:7101/api/v1/publish
server.port: ${PORT:8080}
API网关启动属性:
spring.application.name=reservationClient
spring.cloud.config.uri=http://localhost:8888
Zuul / Eureka / Ribbon / Hystrix客户端都按预期工作,但Atlas客户端失败 .
@SpringBootApplication
@EnableZuulProxy
@EnableHystrix
@EnableEurekaClient
@EnableAtlas
@EnableScheduling
public class APIGateway {
@Autowired
Registry registry;
public static void main(String[] args) {
SpringApplication.run(APIGateway.class, args);
}
}
Atlas客户端由Ribbon包装,Ribbon不知道Atlas
2016-03-07 08:57:50.312 ERROR 184 --- [trace=,span=] [ask-scheduler-2] o.s.integration.handler.LoggingHandler : java.lang.IllegalStateException: No instances available for atlas
at org.springframework.cloud.netflix.ribbon.RibbonClientHttpRequestFactory.createRequest(RibbonClientHttpRequestFactory.java:58)
at org.springframework.http.client.support.HttpAccessor.createRequest(HttpAccessor.java:77)
at org.springframework.web.client.RestTemplate.doExecute(RestTemplate.java:592)
at org.springframework.web.client.RestTemplate.execute(RestTemplate.java:557)
at org.springframework.web.client.RestTemplate.exchange(RestTemplate.java:475)
at org.springframework.cloud.netflix.metrics.atlas.AtlasMetricObserver.sendMetricsBatch(AtlasMetricObserver.java:148)
at org.springframework.cloud.netflix.metrics.atlas.AtlasMetricObserver.update(AtlasMetricObserver.java:126)
at org.springframework.cloud.netflix.metrics.atlas.AtlasExporter.export(AtlasExporter.java:35)
at org.springframework.boot.actuate.metrics.export.MetricExporters$ExportRunner.run(MetricExporters.java:112)
at org.springframework.scheduling.support.DelegatingErrorHandlingRunnable.run(DelegatingErrorHandlingRunnable.java:54)
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
at java.util.concurrent.FutureTask.runAndReset(FutureTask.java:308)
at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:180)
at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:294)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
at java.lang.Thread.run(Thread.java:745)
好的,让我们为Atlas定义一个Ribbon客户端 .
@SpringBootApplication
@EnableZuulProxy
@EnableHystrix
@EnableEurekaClient
@EnableAtlas
@EnableScheduling
public class APIGateway {
@Autowired
Registry registry;
public static void main(String[] args) {
SpringApplication.run(APIGateway.class, args);
}
}
@Component
public class AtlasClientConfiguration {
@Bean
public StaticServerList ribbonServerList() {
return new StaticServerList<Server>(new Server("atlas", 7101));
}
}
现在Atlas客户很高兴 . 我看到了Atlas服务器的POST .
但是现在我通过Zuul请求我的Spring Data服务,以前的工作,现在失败了:
“不允许使用HTTP方法,支持的方法:POST”
谢谢您的帮助!
1 回答
我偶然发现了解决方案 .
AtlasClientConfiguration不是Component,它只是一个提供StaticServerList的Bean . 删除了@Component .
我需要明确命名我的RibbonClient配置 . 即@RibbonClient(name =“atlas”,configuration = AtlasClientConfiguration.class)