SpringCloud中的熔斷監(jiān)控HystrixDashboard和Turbine示例詳解
SpringCloud之熔斷監(jiān)控HystrixDashboard和Turbine
Hystrix-dashboard是一款針對Hystrix進行實時監(jiān)控的工具,通過Hystrix Dashboard我們可以在直觀地看到各
Hystrix Command的請求響應時間, 請求成功率等數(shù)據(jù)。但是只使用Hystrix Dashboard的話, 你只能看到單個應
用內(nèi)的服務信息,這明顯不夠。我們需要一個工具能讓我們匯總系統(tǒng)內(nèi)多個服務的數(shù)據(jù)并顯示到Hystrix
Dashboard上,這個工具就是Turbine。
1、Hystrix Dashboard
我們在熔斷示例項目的基礎上更改。
1.1 添加依賴
<?xml version="1.0" encoding="UTF-8"?> <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd"> <modelVersion>4.0.0</modelVersion> <parent> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-parent</artifactId> <version>1.5.3.RELEASE</version> <relativePath/> </parent> <groupId>com.example</groupId> <artifactId>spring-cloud-consumer-hystrix-dashboard</artifactId> <version>0.0.1-SNAPSHOT</version> <name>spring-cloud-consumer-hystrix-dashboard</name> <description>spring-cloud-consumer-hystrix-dashboard</description> <properties> <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding> <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding> <java.version>1.8</java.version> <spring-cloud.version>Dalston.RELEASE</spring-cloud.version> </properties> <dependencies> <dependency> <groupId>org.springframework.cloud</groupId> <artifactId>spring-cloud-starter-feign</artifactId> </dependency> <dependency> <groupId>org.springframework.cloud</groupId> <artifactId>spring-cloud-starter-eureka</artifactId> </dependency> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-web</artifactId> </dependency> <dependency> <groupId>org.springframework.cloud</groupId> <artifactId>spring-cloud-starter-hystrix</artifactId> </dependency> <dependency> <groupId>org.springframework.cloud</groupId> <artifactId>spring-cloud-starter-hystrix-dashboard</artifactId> </dependency> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-actuator</artifactId> </dependency> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-test</artifactId> <scope>test</scope> </dependency> </dependencies> <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> <build> <plugins> <plugin> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-maven-plugin</artifactId> </plugin> </plugins> </build> </project>
1.2 啟動類
啟動類添加啟用Hystrix Dashboard和熔斷器
package com.example; import org.springframework.boot.SpringApplication; import org.springframework.boot.autoconfigure.SpringBootApplication; import org.springframework.cloud.client.circuitbreaker.EnableCircuitBreaker; import org.springframework.cloud.client.discovery.EnableDiscoveryClient; import org.springframework.cloud.netflix.feign.EnableFeignClients; import org.springframework.cloud.netflix.hystrix.dashboard.EnableHystrixDashboard; @SpringBootApplication @EnableDiscoveryClient @EnableFeignClients @EnableHystrixDashboard @EnableCircuitBreaker public class SpringCloudConsumerHystrixDashboardApplication { public static void main(String[] args) { SpringApplication.run(SpringCloudConsumerHystrixDashboardApplication.class, args); } }
1.3 其它類
package com.example.remote; import org.springframework.cloud.netflix.feign.FeignClient; import org.springframework.web.bind.annotation.RequestMapping; import org.springframework.web.bind.annotation.RequestParam; @FeignClient(name= "spring-cloud-producer", fallback = HelloRemoteHystrix.class) public interface HelloRemote { @RequestMapping(value = "/hello") public String hello(@RequestParam(value = "name") String name); }
package com.example.remote; import org.springframework.stereotype.Component; import org.springframework.web.bind.annotation.RequestParam; @Component public class HelloRemoteHystrix implements HelloRemote{ @Override public String hello(@RequestParam(value = "name") String name) { return "hello " +name+", this messge send failed "; } }
package com.example.controller; import com.example.remote.HelloRemote; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.web.bind.annotation.PathVariable; import org.springframework.web.bind.annotation.RequestMapping; import org.springframework.web.bind.annotation.RestController; @RestController public class ConsumerController { @Autowired HelloRemote helloRemote; @RequestMapping("/hello/{name}") public String index(@PathVariable("name") String name) { return helloRemote.hello(name); } }
spring.application.name=spring-cloud-consumer-hystrix-dashboard server.port=9003 feign.hystrix.enabled=true eureka.client.serviceUrl.defaultZone=http://localhost:8000/eureka/
1.4 測試
啟動工程后訪問 http://localhost:9003/hystrix
,將會看到如下界面:
圖中會有一些提示:
Cluster via Turbine (default cluster):
http://turbine-hostname:port/turbine.stream
Cluster via Turbine (custom cluster):
http://turbine-hostname:port/turbine.stream?cluster=[clusterName]
Single Hystrix App:
http://hystrix-app:port/hystrix.stream
大概意思就是如果查看默認集群使用第一個url,查看指定集群使用第二個url,單個應用的監(jiān)控使用最后一個,我
們暫時只演示單個應用的所以在輸入框中輸入: http://localhost:9003/hystrix.stream
,輸入之后點擊
monitor,進入頁面。如果沒有請求會先顯示Loading ...
:
訪問 http://localhost:9003/hystrix.stream
也會不斷的顯示ping。
請求服務 http://localhost:9003/hello/neo
,就可以看到監(jiān)控的效果了:
首先訪問 http://localhost:9003/hystrix.stream
,顯示如下:
data: {"type":"HystrixCommand","name":"HelloRemote#hello(String)","group":"spring-cloud-producer","currentTime":1662554090588,"isCircuitBreakerOpen":false,"errorPercentage":0,"errorCount":0,"requestCount":0,"rollingCountBadRequests":0,"rollingCountCollapsedRequests":0,"rollingCountEmit":0,"rollingCountExceptionsThrown":0,"rollingCountFailure":0,"rollingCountFallbackEmit":0,"rollingCountFallbackFailure":0,"rollingCountFallbackMissing":0,"rollingCountFallbackRejection":0,"rollingCountFallbackSuccess":0,"rollingCountResponsesFromCache":0,"rollingCountSemaphoreRejected":0,"rollingCountShortCircuited":0,"rollingCountSuccess":0,"rollingCountThreadPoolRejected":0,"rollingCountTimeout":0,"currentConcurrentExecutionCount":0,"rollingMaxConcurrentExecutionCount":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":1000,"propertyValue_executionTimeoutInMilliseconds":1000,"propertyValue_executionIsolationThreadInterruptOnTimeout":true,"propertyValue_executionIsolationThreadPoolKeyOverride":null,"propertyValue_executionIsolationSemaphoreMaxConcurrentRequests":10,"propertyValue_fallbackIsolationSemaphoreMaxConcurrentRequests":10,"propertyValue_metricsRollingStatisticalWindowInMilliseconds":10000,"propertyValue_requestCacheEnabled":true,"propertyValue_requestLogEnabled":true,"reportingHosts":1,"threadPool":"spring-cloud-producer"} data: {"type":"HystrixThreadPool","name":"spring-cloud-producer","currentTime":1662554090588,"currentActiveCount":0,"currentCompletedTaskCount":1,"currentCorePoolSize":10,"currentLargestPoolSize":1,"currentMaximumPoolSize":10,"currentPoolSize":1,"currentQueueSize":0,"currentTaskCount":1,"rollingCountThreadsExecuted":0,"rollingMaxActiveThreads":0,"rollingCountCommandRejections":0,"propertyValue_queueSizeRejectionThreshold":5,"propertyValue_metricsRollingStatisticalWindowInMilliseconds":10000,"reportingHosts":1} ping:
說明已經(jīng)返回了監(jiān)控的各項結(jié)果。
到監(jiān)控頁面就會顯示如下圖:
其實就是 http://localhost:9003/hystrix.stream
返回結(jié)果的圖形化顯示,Hystrix Dashboard Wiki上詳細
說明了圖上每個指標的含義,如下圖:
到此單個應用的熔斷監(jiān)控已經(jīng)完成。
2、Turbine
在復雜的分布式系統(tǒng)中,相同服務的節(jié)點經(jīng)常需要部署上百甚至上千個,很多時候,運維人員希望能夠把相同服務
的節(jié)點狀態(tài)以一個整體集群的形式展現(xiàn)出來,這樣可以更好的把握整個系統(tǒng)的狀態(tài)。 為此,Netflix提供了一個開
源項目(Turbine)來提供把多個hystrix.stream的內(nèi)容聚合為一個數(shù)據(jù)源供Dashboard展示。
2.1 添加依賴
<?xml version="1.0" encoding="UTF-8"?> <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd"> <modelVersion>4.0.0</modelVersion> <parent> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-parent</artifactId> <version>1.5.3.RELEASE</version> <relativePath/> </parent> <groupId>com.example</groupId> <artifactId>spring-cloud-hystrix-dashboard-turbine</artifactId> <version>0.0.1-SNAPSHOT</version> <name>spring-cloud-hystrix-dashboard-turbine</name> <description>spring-cloud-hystrix-dashboard-turbine</description> <properties> <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding> <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding> <java.version>1.8</java.version> <spring-cloud.version>Dalston.RELEASE</spring-cloud.version> </properties> <dependencies> <dependency> <groupId>org.springframework.cloud</groupId> <artifactId>spring-cloud-starter-turbine</artifactId> </dependency> <dependency> <groupId>org.springframework.cloud</groupId> <artifactId>spring-cloud-netflix-turbine</artifactId> </dependency> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-actuator</artifactId> </dependency> <dependency> <groupId>org.springframework.cloud</groupId> <artifactId>spring-cloud-starter-hystrix-dashboard</artifactId> </dependency> </dependencies> <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> <build> <plugins> <plugin> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-maven-plugin</artifactId> </plugin> </plugins> </build> </project>
2.2 配置文件
spring.application.name=hystrix-dashboard-turbine server.port=8001 turbine.appConfig=node01,node02 turbine.aggregator.clusterConfig= default turbine.clusterNameExpression= new String("default") eureka.client.serviceUrl.defaultZone=http://localhost:8000/eureka/
turbine.appConfig
:配置Eureka中的serviceId列表,表明監(jiān)控哪些服務。turbine.aggregator.clusterConfig
:指定聚合哪些集群,多個使用”,”分割,默認為default??墒褂?/li>
http://.../turbine.stream?cluster={clusterConfig之一}
訪問。
turbine.clusterNameExpression
:
1、clusterNameExpression指定集群名稱,默認表達式appName;此時:
turbine.aggregator.clusterConfig
需要配置想要監(jiān)控的應用名稱;
2、當clusterNameExpression: default時,turbine.aggregator.clusterConfig
可以不寫,因為默認就是
default;
3、當clusterNameExpression: metadata[‘cluster’]時,假設想要監(jiān)控的應用配置了
eureka.instance.metadata-map.cluster: ABC
,則需要配置,同時
turbine.aggregator.clusterConfig: ABC
2.3 啟動類
啟動類添加@EnableTurbine
,激活對Turbine的支持
package com.example; import org.springframework.boot.SpringApplication; import org.springframework.boot.autoconfigure.SpringBootApplication; import org.springframework.cloud.netflix.hystrix.dashboard.EnableHystrixDashboard; import org.springframework.cloud.netflix.turbine.EnableTurbine; @SpringBootApplication @EnableHystrixDashboard @EnableTurbine public class SpringCloudHystrixDashboardTurbineApplication { public static void main(String[] args) { SpringApplication.run(SpringCloudHystrixDashboardTurbineApplication.class, args); } }
到此Turbine(hystrix-dashboard-turbine)配置完成
2.4 測試
在示例項目spring-cloud-consumer-hystrix基礎上修改為兩個服務的調(diào)用者spring-cloud-consumer-node1和
spring-cloud-consumer-node2。
spring-cloud-consumer-node1
項目改動如下:application.properties
文件內(nèi)容
spring.application.name=node01 server.port=9001 feign.hystrix.enabled=true eureka.client.serviceUrl.defaultZone=http://localhost:8000/eureka/
spring-cloud-consumer-node2
項目改動如下:application.properties
文件內(nèi)容
spring.application.name=node02 server.port=9002 feign.hystrix.enabled=true eureka.client.serviceUrl.defaultZone=http://localhost:8000/eureka/
HelloRemote類修改:
package com.example.remote; import org.springframework.cloud.netflix.feign.FeignClient; import org.springframework.web.bind.annotation.RequestMapping; import org.springframework.web.bind.annotation.RequestParam; @FeignClient(name = "spring-cloud-producer", fallback = HelloRemoteHystrix.class) public interface HelloRemote { @RequestMapping(value = "/hello") public String hello(@RequestParam(value = "name") String name); }
對應的HelloRemoteHystrix
和ConsumerController
類跟隨修改,具體查看代碼
package com.example.remote; import org.springframework.stereotype.Component; import org.springframework.web.bind.annotation.RequestParam; @Component public class HelloRemoteHystrix implements HelloRemote{ @Override public String hello(@RequestParam(value = "name") String name) { return "hello " +name+", this messge send failed "; } }
package com.example.controller; import com.example.remote.HelloRemote; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.web.bind.annotation.PathVariable; import org.springframework.web.bind.annotation.RequestMapping; import org.springframework.web.bind.annotation.RestController; @RestController public class ConsumerController { @Autowired HelloRemote helloRemote; @RequestMapping("/hello/{name}") public String index(@PathVariable("name") String name) { return helloRemote.hello(name); } }
修改完畢后,依次啟動spring-cloud-eureka
、spring-cloud-consumer-node1
、spring-cloud-consumer-
node2
、spring-cloud-hystrix-dashboard-turbine
打開eureka后臺可以看到注冊了三個服務:
訪問 http://localhost:8001/turbine.stream
返回:
: ping data: {"reportingHostsLast10Seconds":0,"name":"meta","type":"meta","timestamp":1662554703162} : ping data: {"reportingHostsLast10Seconds":0,"name":"meta","type":"meta","timestamp":1662554706172}
并且會不斷刷新以獲取實時的監(jiān)控數(shù)據(jù),說明和單個的監(jiān)控類似,返回監(jiān)控項目的信息。
進行圖形化監(jiān)控查看,輸入:http://localhost:8001/hystrix
,返回酷酷的小熊界面
輸入:http://localhost:8001/turbine.stream
,然后點擊 Monitor Stream ,可以看到出現(xiàn)了倆個監(jiān)控列表
訪問http://localhost:9001/hello/neo
和http://localhost:9002/hello/neo
到此這篇關于SpringCloud中的熔斷監(jiān)控HystrixDashboard和Turbine的文章就介紹到這了,更多相關SpringCloud熔斷監(jiān)控內(nèi)容請搜索腳本之家以前的文章或繼續(xù)瀏覽下面的相關文章希望大家以后多多支持腳本之家!
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