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我正在尝试运行 Spring Boot(使用 Spring Cloud)+ Eureka Server + Hystrix Dashboard 和 Turbine 流,但我遇到了一个问题,到目前为止我找不到任何解决方案。我使用 Spring Boot 1.2.1.RELEASE和 Spring Cloud 1.0.0.RC2。这是我所拥有的:

第一个实例正在运行 Eureka 服务器和 Hystrix 仪表板:

@Configuration
@EnableAutoConfiguration
@EnableEurekaServer
@EnableHystrixDashboard
@EnableDiscoveryClient
class Application {

    public static void main(String[] args) {
        SpringApplication.run Application, args
    }
}

在这里您可以找到build.gradle该实例 - https://gist.github.com/wololock/570272ad7cf2d14a4d3c

Eureka 服务器运行正常,我可以在 eureka 服务器仪表板上看到已注册的实例,我还可以LoadBalancer使用它的 id 获取注册实例的 URL。到目前为止一切正常。

我有一些使用@EnableHystrix注释运行的实例,@HystrixCommand用于定义 Hystrix 必须监视哪些方法。当我将单个实例的 hystrix.stream 的 URL 传递给 Hystrix 仪表板时,我可以看到它运行没有问题。

我也有单独的涡轮服务器,并不复杂:

@EnableAutoConfiguration
@EnableTurbine
@Configuration
@EnableDiscoveryClient
class Application {

    public static void main(String[] args) {
        SpringApplication.run Application, args
    }
}

在这里您可以找到build.gradle涡轮服务器实例 - https://gist.github.com/wololock/ff0d855b8a890232851e

它使用非常简单的配置,主要基于示例涡轮应用程序提供的配置 - https://github.com/spring-cloud-samples/turbine

info:
  component: Turbine

endpoints:
  restart:
    enabled: true
  shutdown:
    enabled: true

turbine:
  appConfig: pdf-creator-service

InstanceDiscovery:
  impl: io.spring.platform.netflix.turbine.EurekaInstanceDiscovery

server:
  port: 8989

management:
  port: 8990

eureka:
  instance:
    leaseRenewalIntervalInSeconds: 10
  client:
    serviceUrl:
      defaultZone: ${vcap.services.${PREFIX:}eureka.credentials.uri:http://user:password@localhost:8761}/eureka/

按顺序运行这些实例后:

  1. 尤里卡服务器
  2. 涡轮服务器
  3. 发现客户端实例,

我在尤里卡服务器中注册了第二个和第三个实例,涡轮服务器日志说,有一个实例:

[2015-02-06 12:35:04.162] boot - 20495  INFO [Timer-0] --- EurekaInstanceDiscovery: Fetching instance list for apps: [pdf-creator-service]
[2015-02-06 12:35:04.162] boot - 20495  INFO [Timer-0] --- EurekaInstanceDiscovery: Fetching instances for app: pdf-creator-service
[2015-02-06 12:35:04.162] boot - 20495  INFO [Timer-0] --- EurekaInstanceDiscovery: Received instance list for app: pdf-creator-service = 1
[2015-02-06 12:35:04.162] boot - 20495  INFO [Timer-0] --- InstanceObservable: Retrieved hosts from InstanceDiscovery: 1
[2015-02-06 12:35:04.162] boot - 20495  INFO [Timer-0] --- InstanceObservable: Found hosts that have been previously terminated: 0
[2015-02-06 12:35:04.162] boot - 20495  INFO [Timer-0] --- InstanceObservable: Hosts up:1, hosts down: 0
[2015-02-06 12:36:04.162] boot - 20495  INFO [Timer-0] --- EurekaInstanceDiscovery: Fetching instance list for apps: [pdf-creator-service]
[2015-02-06 12:36:04.162] boot - 20495  INFO [Timer-0] --- EurekaInstanceDiscovery: Fetching instances for app: pdf-creator-service
[2015-02-06 12:36:04.162] boot - 20495  INFO [Timer-0] --- EurekaInstanceDiscovery: Received instance list for app: pdf-creator-service = 1
[2015-02-06 12:36:04.162] boot - 20495  INFO [Timer-0] --- InstanceObservable: Retrieved hosts from InstanceDiscovery: 1
[2015-02-06 12:36:04.162] boot - 20495  INFO [Timer-0] --- InstanceObservable: Found hosts that have been previously terminated: 0
[2015-02-06 12:36:04.162] boot - 20495  INFO [Timer-0] --- InstanceObservable: Hosts up:1, hosts down: 0

从单个实例调用 hystrix.stream 有效,例如curl http://localhost:8885/hystrix.stream返回:

data: {"type":"HystrixCommand","name":"post","group":"PdfController","currentTime":1423223614259,"isCircuitBreakerOpen":false,"errorPercentage":0,"errorCount":0,"requestCount":0,"rollingCountCollapsedRequests":0,"rollingCountExceptionsThrown":0,"rollingCountFailure":0,"rollingCountFallbackFailure":0,"rollingCountFallbackRejection":0,"rollingCountFallbackSuccess":0,"rollingCountResponsesFromCache":0,"rollingCountSemaphoreRejected":0,"rollingCountShortCircuited":0,"rollingCountSuccess":0,"rollingCountThreadPoolRejected":0,"rollingCountTimeout":0,"currentConcurrentExecutionCount":0,"latencyExecute_mean":0,"latencyExecute":{"0":0,"25":0,"50":0,"75":0,"90":0,"95":0,"99":0,"99.5":0,"100":0},"latencyTotal_mean":0,"latencyTotal":{"0":0,"25":0,"50":0,"75":0,"90":0,"95":0,"99":0,"99.5":0,"100":0},"propertyValue_circuitBreakerRequestVolumeThreshold":20,"propertyValue_circuitBreakerSleepWindowInMilliseconds":5000,"propertyValue_circuitBreakerErrorThresholdPercentage":50,"propertyValue_circuitBreakerForceOpen":false,"propertyValue_circuitBreakerForceClosed":false,"propertyValue_circuitBreakerEnabled":true,"propertyValue_executionIsolationStrategy":"THREAD","propertyValue_executionIsolationThreadTimeoutInMilliseconds":8000,"propertyValue_executionIsolationThreadInterruptOnTimeout":true,"propertyValue_executionIsolationThreadPoolKeyOverride":null,"propertyValue_executionIsolationSemaphoreMaxConcurrentRequests":10,"propertyValue_fallbackIsolationSemaphoreMaxConcurrentRequests":10,"propertyValue_metricsRollingStatisticalWindowInMilliseconds":10000,"propertyValue_requestCacheEnabled":true,"propertyValue_requestLogEnabled":true,"reportingHosts":1}

data: {"type":"HystrixCommand","name":"generate","group":"WkHtmlToPdfGenerator","currentTime":1423223614259,"isCircuitBreakerOpen":false,"errorPercentage":0,"errorCount":0,"requestCount":0,"rollingCountCollapsedRequests":0,"rollingCountExceptionsThrown":0,"rollingCountFailure":0,"rollingCountFallbackFailure":0,"rollingCountFallbackRejection":0,"rollingCountFallbackSuccess":0,"rollingCountResponsesFromCache":0,"rollingCountSemaphoreRejected":0,"rollingCountShortCircuited":0,"rollingCountSuccess":0,"rollingCountThreadPoolRejected":0,"rollingCountTimeout":0,"currentConcurrentExecutionCount":0,"latencyExecute_mean":0,"latencyExecute":{"0":0,"25":0,"50":0,"75":0,"90":0,"95":0,"99":0,"99.5":0,"100":0},"latencyTotal_mean":0,"latencyTotal":{"0":0,"25":0,"50":0,"75":0,"90":0,"95":0,"99":0,"99.5":0,"100":0},"propertyValue_circuitBreakerRequestVolumeThreshold":20,"propertyValue_circuitBreakerSleepWindowInMilliseconds":5000,"propertyValue_circuitBreakerErrorThresholdPercentage":50,"propertyValue_circuitBreakerForceOpen":false,"propertyValue_circuitBreakerForceClosed":false,"propertyValue_circuitBreakerEnabled":true,"propertyValue_executionIsolationStrategy":"THREAD","propertyValue_executionIsolationThreadTimeoutInMilliseconds":8000,"propertyValue_executionIsolationThreadInterruptOnTimeout":true,"propertyValue_executionIsolationThreadPoolKeyOverride":null,"propertyValue_executionIsolationSemaphoreMaxConcurrentRequests":10,"propertyValue_fallbackIsolationSemaphoreMaxConcurrentRequests":10,"propertyValue_metricsRollingStatisticalWindowInMilliseconds":10000,"propertyValue_requestCacheEnabled":true,"propertyValue_requestLogEnabled":true,"reportingHosts":1}

data: {"type":"HystrixThreadPool","name":"PdfController","currentTime":1423223614259,"currentActiveCount":0,"currentCompletedTaskCount":4,"currentCorePoolSize":10,"currentLargestPoolSize":4,"currentMaximumPoolSize":10,"currentPoolSize":4,"currentQueueSize":0,"currentTaskCount":4,"rollingCountThreadsExecuted":0,"rollingMaxActiveThreads":0,"propertyValue_queueSizeRejectionThreshold":5,"propertyValue_metricsRollingStatisticalWindowInMilliseconds":10000,"reportingHosts":1}

但是,当我将涡轮机.stream 附加到 hystrix 仪表板时,我什么也得不到。日志说:

[2015-02-06 12:42:48.922] boot - 24816  INFO [Timer-0] --- EurekaInstanceDiscovery: Received instance list for app: pdf-creator-service = 1
[2015-02-06 12:42:48.922] boot - 24816  INFO [Timer-0] --- InstanceObservable: Retrieved hosts from InstanceDiscovery: 1
[2015-02-06 12:42:48.922] boot - 24816  INFO [Timer-0] --- InstanceObservable: Found hosts that have been previously terminated: 0
[2015-02-06 12:42:48.922] boot - 24816  INFO [Timer-0] --- InstanceObservable: Hosts up:1, hosts down: 0
[2015-02-06 12:43:26.237] boot - 24816  INFO [XNIO-2 task-4] --- TurbineStreamServlet: FilterCriteria: []
[2015-02-06 12:43:26.237] boot - 24816  INFO [XNIO-2 task-4] --- TurbineStreamServlet: StatsType filters: []
[2015-02-06 12:43:26.237] boot - 24816  INFO [XNIO-2 task-4] --- TurbineStreamingConnection: Relevance config: []
[2015-02-06 12:43:26.237] boot - 24816  INFO [XNIO-2 task-4] --- TurbineStreamingConnection: Relevance metrics config: {}
[2015-02-06 12:43:26.237] boot - 24816  INFO [XNIO-2 task-4] --- ClusterMonitor: Registering event handler for cluster monitor: StreamingHandler_f1308dda-58c5-47a5-b1e2-5a0bea32226b
[2015-02-06 12:43:26.237] boot - 24816  INFO [XNIO-2 task-4] --- TurbineDataDispatcher: 

Just added and starting handler tuple: StreamingHandler_f1308dda-58c5-47a5-b1e2-5a0bea32226b
[2015-02-06 12:43:26.238] boot - 24816  INFO [XNIO-2 task-4] --- AggDataFromCluster: Per handler dispacher started for: StreamingHandler_f1308dda-58c5-47a5-b1e2-5a0bea32226b
[2015-02-06 12:43:26.238] boot - 24816  INFO [XNIO-2 task-4] --- ClusterMonitor: All event handlers for cluster monitor: [StreamingHandler_637572ab-acda-4bf4-81cd-6a658adb73eb, StreamingHandler_f1308dda-58c5-47a5-b1e2-5a0bea32226b, StaticListener_For_Aggregator, StreamingHandler_5ec12ee8-3fcd-4a6f-9006-d2a6ecc309d0, StreamingHandler_72d7b9e2-ad98-42a0-9ac3-abe4aa57cc7a]
[2015-02-06 12:43:26.238] boot - 24816  INFO [XNIO-2 task-4] --- ClusterMonitor: Starting up the cluster monitor for default_agg

如果我这样做,curl http://localhost:8989/turbine.stream我只会得到:

: ping
data: {"reportingHostsLast10Seconds":0,"name":"meta","type":"meta","timestamp":1423223006935}

: ping
data: {"reportingHostsLast10Seconds":0,"name":"meta","type":"meta","timestamp":1423223010935}

: ping
data: {"reportingHostsLast10Seconds":0,"name":"meta","type":"meta","timestamp":1423223013936}

: ping
data: {"reportingHostsLast10Seconds":0,"name":"meta","type":"meta","timestamp":1423223017936}

: ping
data: {"reportingHostsLast10Seconds":0,"name":"meta","type":"meta","timestamp":1423223020937}

: ping
: ping
data: {"reportingHostsLast10Seconds":0,"name":"meta","type":"meta","timestamp":1423223024937}

: ping
data: {"reportingHostsLast10Seconds":0,"name":"meta","type":"meta","timestamp":1423223028938}

: ping
data: {"reportingHostsLast10Seconds":0,"name":"meta","type":"meta","timestamp":1423223032938}

: ping
: ping
data: {"reportingHostsLast10Seconds":0,"name":"meta","type":"meta","timestamp":1423223036938}

: ping
data: {"reportingHostsLast10Seconds":0,"name":"meta","type":"meta","timestamp":1423223039939}

: ping
data: {"reportingHostsLast10Seconds":0,"name":"meta","type":"meta","timestamp":1423223043939}

: ping
data: {"reportingHostsLast10Seconds":0,"name":"meta","type":"meta","timestamp":1423223046940}

: ping
data: {"reportingHostsLast10Seconds":0,"name":"meta","type":"meta","timestamp":1423223050940}

: ping
: ping
data: {"reportingHostsLast10Seconds":0,"name":"meta","type":"meta","timestamp":1423223054941}

我的问题是:我在设置和运行时是否遗漏了什么?以前我试图通过在单个实例中拥有尤里卡和涡轮服务器来管理这个,但在那种情况下,涡轮机甚至无法使用正确的应用程序名称在尤里卡中找到注册的应用程序。我在拆分 eureka 和涡轮后取得了进展,但它仍然无法正常工作。

我将不胜感激任何建议。如果您需要更多信息,请告诉我,我可能会错过一些重要的信息。

更新 20150209

按照 Dave 的建议,我application.ymlturbine-server. 现在该文件仅包含:

info:
  component: Turbine

turbine:
  appConfig: pdf-creator-service
  clusterNameExpression: 'default'

server:
  port: 8989

management:
  port: 8990

eureka:
  instance:
    leaseRenewalIntervalInSeconds: 10
  client:
    serviceUrl:
      defaultZone: ${vcap.services.${PREFIX:}eureka.credentials.uri:http://user:password@localhost:8761}/eureka/

但它不会使turtle.stream 工作。在 Turbo-server 获知 eureka 服务器中的注册客户端后,它会失败并出现以下异常:

[2015-02-09 21:25:03.516] boot - 4808  INFO [Timer-0] --- EurekaInstanceDiscovery: Fetching instance list for apps: [pdf-creator-service]
[2015-02-09 21:25:03.516] boot - 4808  INFO [Timer-0] --- EurekaInstanceDiscovery: Fetching instances for app: pdf-creator-service
[2015-02-09 21:25:03.516] boot - 4808  INFO [Timer-0] --- EurekaInstanceDiscovery: Received instance list for app: pdf-creator-service = 1
[2015-02-09 21:25:03.520] boot - 4808 ERROR [Timer-0] --- EurekaInstanceDiscovery: Failed to fetch instances for app: pdf-creator-service, retrying once more
org.springframework.expression.spel.SpelEvaluationException: EL1008E:(pos 0): Property or field 'default' cannot be found on object of type 'com.netflix.appinfo.InstanceInfo' - maybe not public?
    at org.springframework.expression.spel.ast.PropertyOrFieldReference.readProperty(PropertyOrFieldReference.java:226)
    at org.springframework.expression.spel.ast.PropertyOrFieldReference.getValueInternal(PropertyOrFieldReference.java:93)
    at org.springframework.expression.spel.ast.PropertyOrFieldReference.getValueInternal(PropertyOrFieldReference.java:81)
    at org.springframework.expression.spel.ast.SpelNodeImpl.getValue(SpelNodeImpl.java:120)
    at org.springframework.expression.spel.standard.SpelExpression.getValue(SpelExpression.java:242)
    at org.springframework.cloud.netflix.turbine.EurekaInstanceDiscovery.getClusterName(EurekaInstanceDiscovery.java:183)
    at org.springframework.cloud.netflix.turbine.EurekaInstanceDiscovery.marshallInstanceInfo(EurekaInstanceDiscovery.java:141)
    at org.springframework.cloud.netflix.turbine.EurekaInstanceDiscovery.getInstancesForApp(EurekaInstanceDiscovery.java:123)
    at org.springframework.cloud.netflix.turbine.EurekaInstanceDiscovery.getInstanceList(EurekaInstanceDiscovery.java:88)
    at com.netflix.turbine.discovery.InstanceObservable.getInstanceList(InstanceObservable.java:327)
    at com.netflix.turbine.discovery.InstanceObservable.access$500(InstanceObservable.java:66)
    at com.netflix.turbine.discovery.InstanceObservable$1.run(InstanceObservable.java:258)
    at java.util.TimerThread.mainLoop(Timer.java:555)
    at java.util.TimerThread.run(Timer.java:505)

我尝试过写作'default'default但不幸的是结果是一样的。

解决方案

感谢 Dave Syer 找到了合适的解决方案。基本上,诀窍是添加:

turbine:
    clusterNameExpression: new String("default")

归档到application.yml涡轮服务器应用程序实例中。它可能看起来很奇怪,我不相信它会起作用,但确实如此。现在,当我调用我的 hystrix 客户端应用程序时,我得到了hystrix.stream由该应用程序和turbine.stream涡轮服务器提供的正确信息。我当前application.yml的涡轮服务器如下所示:

info:
  component: Turbine

turbine:
  clusterNameExpression: new String("default")
  appConfig: pdf-creator-service

server:
  port: 8989

management:
  port: 8990

eureka:
  instance:
    leaseRenewalIntervalInSeconds: 10
  client:
    serviceUrl:
      defaultZone: ${vcap.services.${PREFIX:}eureka.credentials.uri:http://user:password@localhost:8761}/eureka/

turbine.appConfig保存有关 hystrix 客户端的信息(通过它们的 ID)。要将另一个客户端添加到您的涡轮服务器,您必须简单地放置另一个实例 ID,与前一个以逗号分隔。这就是所有人:)

4

2 回答 2

11

如果我为集群添加一些配置,它对我有用,例如

turbine:
  appConfig: customers,stores
  clusterNameExpression: new String('default')

Turbine 必须知道如何构造“集群”名称(一组应用程序的聚合键)。默认是使用appname,所以如果你不设置clusterNameExpression你需要在stream URL中使用一个查询参数,例如/turbine.stream?cluster=CUSTOMERS(大写的appname)。

于 2015-02-09T16:34:04.413 回答
1

就我而言,我有:7979/mock.stream 作为测试涡轮应用程序的客户端。涡轮机检查事件时间 (timeOfEvent),因此它将仅显示当前日期时间事件。

它可以使用关闭

Turbo.InstanceMonitor.eventStream.skipLineLogic.enabled = false

于 2015-03-13T09:51:29.090 回答