This module is a JAX-RS implementation of hystrix-metrics-event-stream module without any Servlet API dependency and exposes metrics in a text/event-stream formatted stream that continues as long as a client holds the connection.
Binaries and dependency information for Maven, Ivy, Gradle and others can be found at http://search.maven.org.
Example for Maven (lookup latest version):
<dependency>
<groupId>com.netflix.hystrix</groupId>
<artifactId>hystrix-metrics-event-stream-jaxrs</artifactId>
<version>1.6.0</version>
</dependency>
and for Ivy:
<dependency org="com.netflix.hystrix" name="hystrix-metrics-event-stream-jaxrs" rev="1.6.0" />
- Include hystrix-metrics-event-stream-jaxrs*.jar in your classpath (such as /WEB-INF/lib).
- Register
HystrixStreamFeature
in yourjavax.ws.rs.core.Application
as shown below.
public class HystrixStreamApplication extends Application{
@Override
public Set<Class<?>> getClasses() {
Set<Class<?>> clazzes = new HashSet<Class<?>>();
clazzes.add(HystrixStreamFeature.class);
return clazzes;
}
}
- Following end-points are available
- /hystrix.stream - Stream Hystrix Metrics
- /hystrix/utilization.stream - Stream Hystrix Utilization
- /hystrix/config.stream - Stream Hystrix configuration
- /hystrix/request.stream - Stream Hystrix SSE events
To test your installation you can use curl like this:
$ curl http://hostname:port/appname/hystrix.stream
data: {"rollingCountFailure":0,"propertyValue_executionIsolationThreadInterruptOnTimeout":true,"rollingCountTimeout":0,"rollingCountExceptionsThrown":0,"rollingCountFallbackSuccess":0,"errorCount":0,"type":"HystrixCommand","propertyValue_circuitBreakerEnabled":true,"reportingHosts":1,"latencyTotal":{"0":0,"95":0,"99.5":0,"90":0,"25":0,"99":0,"75":0,"100":0,"50":0},"currentConcurrentExecutionCount":0,"rollingCountSemaphoreRejected":0,"rollingCountFallbackRejection":0,"rollingCountShortCircuited":0,"rollingCountResponsesFromCache":0,"propertyValue_circuitBreakerForceClosed":false,"name":"IdentityCookieAuthSwitchProfile","propertyValue_executionIsolationThreadPoolKeyOverride":"null","rollingCountSuccess":0,"propertyValue_requestLogEnabled":true,"requestCount":0,"rollingCountCollapsedRequests":0,"errorPercentage":0,"propertyValue_circuitBreakerSleepWindowInMilliseconds":5000,"latencyTotal_mean":0,"propertyValue_circuitBreakerForceOpen":false,"propertyValue_circuitBreakerRequestVolumeThreshold":20,"propertyValue_circuitBreakerErrorThresholdPercentage":50,"propertyValue_executionIsolationStrategy":"THREAD","rollingCountFallbackFailure":0,"isCircuitBreakerOpen":false,"propertyValue_executionIsolationSemaphoreMaxConcurrentRequests":20,"propertyValue_executionIsolationThreadTimeoutInMilliseconds":1000,"propertyValue_metricsRollingStatisticalWindowInMilliseconds":10000,"propertyValue_fallbackIsolationSemaphoreMaxConcurrentRequests":10,"latencyExecute":{"0":0,"95":0,"99.5":0,"90":0,"25":0,"99":0,"75":0,"100":0,"50":0},"group":"IDENTITY","latencyExecute_mean":0,"propertyValue_requestCacheEnabled":true,"rollingCountThreadPoolRejected":0}
data: {"rollingCountFailure":0,"propertyValue_executionIsolationThreadInterruptOnTimeout":true,"rollingCountTimeout":0,"rollingCountExceptionsThrown":0,"rollingCountFallbackSuccess":0,"errorCount":0,"type":"HystrixCommand","propertyValue_circuitBreakerEnabled":true,"reportingHosts":3,"latencyTotal":{"0":1,"95":1,"99.5":1,"90":1,"25":1,"99":1,"75":1,"100":1,"50":1},"currentConcurrentExecutionCount":0,"rollingCountSemaphoreRejected":0,"rollingCountFallbackRejection":0,"rollingCountShortCircuited":0,"rollingCountResponsesFromCache":0,"propertyValue_circuitBreakerForceClosed":false,"name":"CryptexDecrypt","propertyValue_executionIsolationThreadPoolKeyOverride":"null","rollingCountSuccess":1,"propertyValue_requestLogEnabled":true,"requestCount":1,"rollingCountCollapsedRequests":0,"errorPercentage":0,"propertyValue_circuitBreakerSleepWindowInMilliseconds":15000,"latencyTotal_mean":1,"propertyValue_circuitBreakerForceOpen":false,"propertyValue_circuitBreakerRequestVolumeThreshold":60,"propertyValue_circuitBreakerErrorThresholdPercentage":150,"propertyValue_executionIsolationStrategy":"THREAD","rollingCountFallbackFailure":0,"isCircuitBreakerOpen":false,"propertyValue_executionIsolationSemaphoreMaxConcurrentRequests":60,"propertyValue_executionIsolationThreadTimeoutInMilliseconds":3000,"propertyValue_metricsRollingStatisticalWindowInMilliseconds":30000,"propertyValue_fallbackIsolationSemaphoreMaxConcurrentRequests":30,"latencyExecute":{"0":0,"95":0,"99.5":0,"90":0,"25":0,"99":0,"75":0,"100":0,"50":0},"group":"CRYPTEX","latencyExecute_mean":0,"propertyValue_requestCacheEnabled":true,"rollingCountThreadPoolRejected":0}