Hi,

In some scenarios, the Spring boot applications are packages as war files to be executed in one application server. For that scenarios, Does exist some way to use the project?

Many thanks in advance

Juan Antonio

When checking for assault configuration following combination is evaluated the wrong way:

chaos.monkey.assaults.latencyActive=true
chaos.monkey.assaults.exceptionsActive=false
chaos.monkey.assaults.killApplicationActive=true

Both the checks for isLatencyAndKillAppActive() and isExceptionAndKillAppActive() in ChaosMonkey evaluate to true for this combination so that the latter check is never reached.

I have the boot application and which controller is calling the ervice it is spawning the async thread
which in turn spawning the parallel threads with below configurations:

async.config.core.pool.size=20
async.config.max.pool.size=20
async.config.queue.capacity=20

parallel.call.config.core.pool.size=30
parallel.call.config.max.pool.size=30
parallel.call.config.queue.capacity=30

Now , when I am running the load on this application with the assault level as 10 , i am not getting the 10% failure rate.

Is there any calculation which will decide the failure rate for the application , say suppose if I put the assault level as 10 then should it not cause the 10% failure rate?

Hi,
I saw in your source code that there was a memoryAssault function. I managed to use it, but don't really understand how it works, especially how the memoryFillIncrementFraction and memoryFillTargetFraction parameters are used. Is there any documentation ? Or could you give me a brief explanation on it ?

To reproduce:

• Add chaos-monkey-spring-boot v2.0.2 dependency to maven
• Add following application properties:

  spring.profiles.active=chaos-monkey
  chaos.monkey.enabled=true
  chaos.monkey.assaults.level=1
  

• Start application and do something which uses a service.
  • Expected result: action successful with latency
  • Actual result: normal functionality
• Add following application properties:

chaos.monkey.watcher.service=true

• Start application and do something which uses a service.
  • Expected result: action successful with latency
  • Actual result: action successful with latency

Hi,
we try using version 2.0.2 version of chaos mokey with our application. ### We are using Spring Webflux (reactive web programing) + Reactor core (Reactor Netty), the spring boot version is (2.1.5.RELEASE) but I am getting exception from the service, without chaos monkey dependency it is working fine. I am suspecting whether Chaos Monkey supports reactive programming or not. Below are the exception can you please help.

[DEBUG] org.springframework.context.annotation.AnnotationConfigApplicationContext - Closing org.springframework.context.annotation.AnnotationConfigApplicationContext@15d943d, started on Tue Jun 25 11:09:47 GST 2019
[ERROR] org.springframework.boot.SpringApplication - Application run failed
org.springframework.context.ApplicationContextException: Unable to start reactive web server; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'org.springframework.boot.autoconfigure.web.reactive.ReactiveWebServerFactoryConfiguration$EmbeddedNetty': Initialization of bean failed; nested exception is org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'de.codecentric.spring.boot.chaos.monkey.configuration.ChaosMonkeyConfiguration': Unsatisfied dependency expressed through constructor parameter 0; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'chaos.monkey-de.codecentric.spring.boot.chaos.monkey.configuration.ChaosMonkeyProperties': Initialization of bean failed; nested exception is org.springframework.beans.factory.BeanCurrentlyInCreationException: Error creating bean with name 'componentAspect': Requested bean is currently in creation: Is there an unresolvable circular reference?
at org.springframework.boot.web.reactive.context.ReactiveWebServerApplicationContext.onRefresh(ReactiveWebServerApplicationContext.java:82)
at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:543)
at org.springframework.boot.web.reactive.context.ReactiveWebServerApplicationContext.refresh(ReactiveWebServerApplicationContext.java:67)
at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:775)
at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:397)
at org.springframework.boot.SpringApplication.run(SpringApplication.java:316)
at org.springframework.boot.SpringApplication.run(SpringApplication.java:1260)
at org.springframework.boot.SpringApplication.run(SpringApplication.java:1248)
at com.emirates.ocsl.profileservice.Application.main(Application.java:30)

Application may handle the specific exception when interacting with its down stream layers/components, to increase application resiliency. But the current Exception Assault public class ExceptionAssault implements ChaosMonkeyAssault will throw RuntimeException only during attack, it will be hard for application level error handling. It would be good to have capability to specify exception type at experiment step, and the attack can raise it during the trial running.

let me know your thought, and I'm happy to contribute on it if the idea is agreeable.

• Update dependencies to latest stable releases (maven plugins, aspectj, spring boot, spring)

@bean
public ChaosMonkeyScheduler scheduler(@nullable TaskScheduler scheduler, ChaosMonkeyRuntimeScope runtimeScope) {
ScheduledTaskRegistrar registrar = null;
if (scheduler != null) {
registrar = new ScheduledTaskRegistrar();
registrar.setTaskScheduler(scheduler);
}
return new ChaosMonkeyScheduler(registrar, assaultProperties, runtimeScope);
}

Repository Watcher is not invoked
Example can be found in branch metrics
https://github.com/codecentric/chaos-monkey-spring-boot/tree/2.0.1-metrics

Currently its not possible to set latencyRangeStart and latencyRangeEnd to the same value to force a fixed instead of a ranged delay.

Even worse, this becomes apparent during runtime:

java.lang.IllegalArgumentException: bound must be greater than origin at java.util.concurrent.ThreadLocalRandom.nextInt(ThreadLocalRandom.java:378) at de.codecentric.spring.boot.chaos.monkey.assaults.LatencyAssault.attack(LatencyAssault.java:53)
A wrong configuration should be checked on property creation time (e.g. startup).
Using "workarounds" like setting 1000 and 1001 feels strange, so it should also be possible to set a fixed delay (same values).

Merge request incoming! ;)

I am using SB Chaos monkey 2.0.1 and SPring context 5.0. Getting the below error on app startup with @component watcher = true.

org.springframework.context.ApplicationContextException: Unable to start reactive web server; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'org.springframework.boot.autoconfigure.web.reactive.ReactiveWebServerFactoryConfiguration$EmbeddedNetty': Initialization of bean failed; nested exception is org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'de.codecentric.spring.boot.chaos.monkey.configuration.ChaosMonkeyConfiguration': Unsatisfied dependency expressed through constructor parameter 0; nested exception is org.springframework.boot.context.properties.ConfigurationPropertiesBindException: Error creating bean with name 'chaos.monkey-de.codecentric.spring.boot.chaos.monkey.configuration.ChaosMonkeyProperties': Could not bind properties to 'ChaosMonkeyProperties' : prefix=chaos.monkey, ignoreInvalidFields=false, ignoreUnknownFields=true; nested exception is org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'org.springframework.boot.context.properties.ConversionServiceDeducer$Factory': Unsatisfied dependency expressed through method 'setConverters' parameter 0; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'org.springframework.cloud.stream.config.SpelExpressionConverterConfiguration': Initialization of bean failed; nested exception is org.springframework.beans.factory.BeanCurrentlyInCreationException: Error creating bean with name 'componentAspect': Requested bean is currently in creation: Is there an unresolvable circular reference?
at org.springframework.boot.web.reactive.context.ReactiveWebServerApplicationContext.onRefresh(ReactiveWebServerApplicationContext.java:82) ~[spring-boot-2.0.8.RELEASE.jar:2.0.8.RELEASE]
at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:542) ~[spring-context-5.0.12.RELEASE.jar:5.0.12.RELEASE]
at org.springframework.boot.web.reactive.context.ReactiveWebServerApplicationContext.refresh(ReactiveWebServerApplicationContext.java:67) ~[spring-boot-2.0.8.RELEASE.jar:2.0.8.RELEASE]
at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:754) [spring-boot-2.0.8.RELEASE.jar:2.0.8.RELEASE]

The test (in demo project ext-jar) fails under windows and should be fixed

When using Spring Boot Chaos Monkey Latency Assault I'm getting IOExceptions with the message Broken Pipe. It is only in test environment and it doesn't chrash my service but the it is harder to read the log and it does use some memory saving all the logs. Did I mess up any configuration? I only get this when using Chaos Monkey.
Here is my configuration:

spring:
  profiles:
    active: chaos-monkey
..
chaos:
  monkey:
    enabled: true
    watcher:
      rest-controller: true
      repository: true
      service: true
    assaults:
      level: 10
      latency-active: true

This is the error log:

org.apache.catalina.connector.ClientAbortException: java.io.IOException: Broken pipe
	at org.apache.catalina.connector.OutputBuffer.doFlush(OutputBuffer.java:321) ~[tomcat-embed-core-8.5.27.jar!/:8.5.27]
	at org.apache.catalina.connector.OutputBuffer.flush(OutputBuffer.java:284) ~[tomcat-embed-core-8.5.27.jar!/:8.5.27]
	at org.apache.catalina.connector.CoyoteOutputStream.flush(CoyoteOutputStream.java:118) ~[tomcat-embed-core-8.5.27.jar!/:8.5.27]
	at org.springframework.cloud.sleuth.instrument.web.TraceServletOutputStream.flush(TraceServletOutputStream.java:128) ~[spring-cloud-sleuth-core-1.3.2.RELEASE.jar!/:1.3.2.RELEASE]
	at com.fasterxml.jackson.core.json.UTF8JsonGenerator.flush(UTF8JsonGenerator.java:1054) ~[jackson-core-2.8.10.jar!/:2.8.10]
	at com.fasterxml.jackson.databind.ObjectWriter.writeValue(ObjectWriter.java:953) ~[jackson-databind-2.8.10.jar!/:2.8.10]
	at org.springframework.http.converter.json.AbstractJackson2HttpMessageConverter.writeInternal(AbstractJackson2HttpMessageConverter.java:286) ~[spring-web-4.3.14.RELEASE.jar!/:4.3.14.RELEASE]
	at org.springframework.http.converter.AbstractGenericHttpMessageConverter.write(AbstractGenericHttpMessageConverter.java:106) ~[spring-web-4.3.14.RELEASE.jar!/:4.3.14.RELEASE]
	at org.springframework.web.servlet.mvc.method.annotation.AbstractMessageConverterMethodProcessor.writeWithMessageConverters(AbstractMessageConverterMethodProcessor.java:231) ~[spring-webmvc-4.3.14.RELEASE.jar!/:4.3.14.RELEASE]
	at org.springframework.web.servlet.mvc.method.annotation.RequestResponseBodyMethodProcessor.handleReturnValue(RequestResponseBodyMethodProcessor.java:174) ~[spring-webmvc-4.3.14.RELEASE.jar!/:4.3.14.RELEASE]
	at org.springframework.web.method.support.HandlerMethodReturnValueHandlerComposite.handleReturnValue(HandlerMethodReturnValueHandlerComposite.java:81) ~[spring-web-4.3.14.RELEASE.jar!/:4.3.14.RELEASE]
	at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:113) ~[spring-webmvc-4.3.14.RELEASE.jar!/:4.3.14.RELEASE]
	at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandlerMethod(RequestMappingHandlerAdapter.java:827) ~[spring-webmvc-4.3.14.RELEASE.jar!/:4.3.14.RELEASE]
	at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:738) ~[spring-webmvc-4.3.14.RELEASE.jar!/:4.3.14.RELEASE]
	at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:85) ~[spring-webmvc-4.3.14.RELEASE.jar!/:4.3.14.RELEASE]
	at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:967) ~[spring-webmvc-4.3.14.RELEASE.jar!/:4.3.14.RELEASE]
	at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:901) ~[spring-webmvc-4.3.14.RELEASE.jar!/:4.3.14.RELEASE]
	at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:970) ~[spring-webmvc-4.3.14.RELEASE.jar!/:4.3.14.RELEASE]
	at org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:861) ~[spring-webmvc-4.3.14.RELEASE.jar!/:4.3.14.RELEASE]
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:635) ~[tomcat-embed-core-8.5.27.jar!/:8.5.27]
	at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:846) ~[spring-webmvc-4.3.14.RELEASE.jar!/:4.3.14.RELEASE]
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:742) ~[tomcat-embed-core-8.5.27.jar!/:8.5.27]
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:231) [tomcat-embed-core-8.5.27.jar!/:8.5.27]
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) [tomcat-embed-core-8.5.27.jar!/:8.5.27]
	at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52) ~[tomcat-embed-websocket-8.5.27.jar!/:8.5.27]
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) [tomcat-embed-core-8.5.27.jar!/:8.5.27]
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) [tomcat-embed-core-8.5.27.jar!/:8.5.27]
	at org.springframework.boot.web.filter.ApplicationContextHeaderFilter.doFilterInternal(ApplicationContextHeaderFilter.java:55) ~[spring-boot-1.5.10.RELEASE.jar!/:1.5.10.RELEASE]
	at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) [spring-web-4.3.14.RELEASE.jar!/:4.3.14.RELEASE]
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) [tomcat-embed-core-8.5.27.jar!/:8.5.27]
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) [tomcat-embed-core-8.5.27.jar!/:8.5.27]
	at org.springframework.boot.actuate.trace.WebRequestTraceFilter.doFilterInternal(WebRequestTraceFilter.java:110) ~[spring-boot-actuator-1.5.10.RELEASE.jar!/:1.5.10.RELEASE]
	at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) [spring-web-4.3.14.RELEASE.jar!/:4.3.14.RELEASE]
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) [tomcat-embed-core-8.5.27.jar!/:8.5.27]
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) [tomcat-embed-core-8.5.27.jar!/:8.5.27]
	at org.springframework.cloud.sleuth.instrument.web.TraceFilter.doFilter(TraceFilter.java:164) ~[spring-cloud-sleuth-core-1.3.2.RELEASE.jar!/:1.3.2.RELEASE]
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) [tomcat-embed-core-8.5.27.jar!/:8.5.27]
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) [tomcat-embed-core-8.5.27.jar!/:8.5.27]
	at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:197) [spring-web-4.3.14.RELEASE.jar!/:4.3.14.RELEASE]
	at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) [spring-web-4.3.14.RELEASE.jar!/:4.3.14.RELEASE]
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) [tomcat-embed-core-8.5.27.jar!/:8.5.27]
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) [tomcat-embed-core-8.5.27.jar!/:8.5.27]
	at org.springframework.boot.actuate.autoconfigure.MetricsFilter.doFilterInternal(MetricsFilter.java:106) [spring-boot-actuator-1.5.10.RELEASE.jar!/:1.5.10.RELEASE]
	at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) [spring-web-4.3.14.RELEASE.jar!/:4.3.14.RELEASE]
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) [tomcat-embed-core-8.5.27.jar!/:8.5.27]
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) [tomcat-embed-core-8.5.27.jar!/:8.5.27]
	at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:199) [tomcat-embed-core-8.5.27.jar!/:8.5.27]
	at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:96) [tomcat-embed-core-8.5.27.jar!/:8.5.27]
	at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:504) [tomcat-embed-core-8.5.27.jar!/:8.5.27]
	at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:140) [tomcat-embed-core-8.5.27.jar!/:8.5.27]
	at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:81) [tomcat-embed-core-8.5.27.jar!/:8.5.27]
	at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:87) [tomcat-embed-core-8.5.27.jar!/:8.5.27]
	at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:342) [tomcat-embed-core-8.5.27.jar!/:8.5.27]
	at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:803) [tomcat-embed-core-8.5.27.jar!/:8.5.27]
	at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:66) [tomcat-embed-core-8.5.27.jar!/:8.5.27]
	at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:790) [tomcat-embed-core-8.5.27.jar!/:8.5.27]
	at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1459) [tomcat-embed-core-8.5.27.jar!/:8.5.27]
	at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49) [tomcat-embed-core-8.5.27.jar!/:8.5.27]
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) [na:1.8.0_111]
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) [na:1.8.0_111]
	at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61) [tomcat-embed-core-8.5.27.jar!/:8.5.27]
	at java.lang.Thread.run(Thread.java:745) [na:1.8.0_111]
Caused by: java.io.IOException: Broken pipe
	at sun.nio.ch.FileDispatcherImpl.write0(Native Method) ~[na:1.8.0_111]
	at sun.nio.ch.SocketDispatcher.write(SocketDispatcher.java:47) ~[na:1.8.0_111]
	at sun.nio.ch.IOUtil.writeFromNativeBuffer(IOUtil.java:93) ~[na:1.8.0_111]
	at sun.nio.ch.IOUtil.write(IOUtil.java:65) ~[na:1.8.0_111]
	at sun.nio.ch.SocketChannelImpl.write(SocketChannelImpl.java:471) ~[na:1.8.0_111]
	at org.apache.tomcat.util.net.NioChannel.write(NioChannel.java:134) ~[tomcat-embed-core-8.5.27.jar!/:8.5.27]
	at org.apache.tomcat.util.net.NioBlockingSelector.write(NioBlockingSelector.java:101) ~[tomcat-embed-core-8.5.27.jar!/:8.5.27]
	at org.apache.tomcat.util.net.NioSelectorPool.write(NioSelectorPool.java:157) ~[tomcat-embed-core-8.5.27.jar!/:8.5.27]
	at org.apache.tomcat.util.net.NioEndpoint$NioSocketWrapper.doWrite(NioEndpoint.java:1267) ~[tomcat-embed-core-8.5.27.jar!/:8.5.27]
	at org.apache.tomcat.util.net.SocketWrapperBase.doWrite(SocketWrapperBase.java:670) ~[tomcat-embed-core-8.5.27.jar!/:8.5.27]
	at org.apache.tomcat.util.net.SocketWrapperBase.flushBlocking(SocketWrapperBase.java:607) ~[tomcat-embed-core-8.5.27.jar!/:8.5.27]
	at org.apache.tomcat.util.net.SocketWrapperBase.flush(SocketWrapperBase.java:597) ~[tomcat-embed-core-8.5.27.jar!/:8.5.27]
	at org.apache.coyote.http11.Http11OutputBuffer$SocketOutputBuffer.flush(Http11OutputBuffer.java:646) ~[tomcat-embed-core-8.5.27.jar!/:8.5.27]
	at org.apache.coyote.http11.filters.ChunkedOutputFilter.flush(ChunkedOutputFilter.java:169) ~[tomcat-embed-core-8.5.27.jar!/:8.5.27]
	at org.apache.coyote.http11.Http11OutputBuffer.flush(Http11OutputBuffer.java:252) ~[tomcat-embed-core-8.5.27.jar!/:8.5.27]
	at org.apache.coyote.http11.Http11Processor.flush(Http11Processor.java:1560) [tomcat-embed-core-8.5.27.jar!/:8.5.27]
	at org.apache.coyote.AbstractProcessor.action(AbstractProcessor.java:285) ~[tomcat-embed-core-8.5.27.jar!/:8.5.27]
	at org.apache.coyote.Response.action(Response.java:173) ~[tomcat-embed-core-8.5.27.jar!/:8.5.27]
	at org.apache.catalina.connector.OutputBuffer.doFlush(OutputBuffer.java:317) ~[tomcat-embed-core-8.5.27.jar!/:8.5.27]
	... 61 common frames omitted

Docs should contain an explanation on how to use the new MemoryAssault

Assault attacks are not choosen well, they are not fired correct, if all 3 are active.

Since a lot of projects are still based on earlier versions of Spring Boot, adding support for them might be a good idea.

Hello,

we are using Jetty servlet stack together with Spring webflux.
If I use the KillAppAssault, i will get an error by the Thread.sleep(5000);

The error is:

13:02:16.148] [b34539e37b4747a78b70754a9e1dfb45] [INFO ] [tp1662417126-54] [org.eclipse.jetty.server.session        ] : node0 Stopped scavenging
[13:02:16.151] [b34539e37b4747a78b70754a9e1dfb45] [INFO ] [tp1662417126-54] [o.e.j.s.h.ContextHandler.application    ] : Destroying Spring FrameworkServlet 'dispatcherServlet'
[13:02:16.152] [b34539e37b4747a78b70754a9e1dfb45] [INFO ] [tp1662417126-54] [o.e.jetty.server.handler.ContextHandler ] : Stopped o.s.b.w.e.j.JettyEmbeddedWebAppContext@10f384a2{application,/,[file:///AppData/Local/Temp/jetty-docbase.8177349965831428657.8090/],UNAVAILABLE}
java.lang.InterruptedException: sleep interrupted
	at java.lang.Thread.sleep(Native Method)
	at my.MyResource.query(MyResource.java:71)
	at my.MyResource$$FastClassBySpringCGLIB$$3bcb8e2c.invoke(<generated>)
	at org.springframework.cglib.proxy.MethodProxy.invoke(MethodProxy.java:218)
	at org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.invokeJoinpoint(CglibAopProxy.java:749)
	at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:163)
	at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:186)
	at org.springframework.aop.framework.CglibAopProxy$DynamicAdvisedInterceptor.intercept(CglibAopProxy.java:688)
	at my.MyResource$$EnhancerBySpringCGLIB$$491d4ce9.query(<generated>)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:498)
	at org.springframework.web.method.support.InvocableHandlerMethod.doInvoke(InvocableHandlerMethod.java:190)
	at org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:138)
	at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:104)
	at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandlerMethod(RequestMappingHandlerAdapter.java:892)
	at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:797)
	at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:87)
	at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:1039)
	at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:942)
	at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:1005)
	at org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:897)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:645)
	at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:882)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:750)
	at org.eclipse.jetty.servlet.ServletHolder.handle(ServletHolder.java:873)
	at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1623)
	at org.eclipse.jetty.websocket.server.WebSocketUpgradeFilter.doFilter(WebSocketUpgradeFilter.java:214)
	at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1610)
	at com.bosch.bci.spring.tracing.CorrelationIdMirrorServletRequestFilter.doFilter(CorrelationIdMirrorServletRequestFilter.java:41)
	at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1610)
	at my.RequestBodySizeLimiter.doFilterInternal(RequestBodySizeLimiter.java:39)
	at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
	at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1610)
	at my.TenantIdValidator.doFilter(TenantIdValidator.java:85)
	at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1610)
	at com.bosch.bci.foundation.web.filter.DefaultRedirectHandler.doFilter(DefaultRedirectHandler.java:57)
	at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1610)
	at org.springframework.security.oauth2.client.filter.OAuth2ClientContextFilter.doFilter(OAuth2ClientContextFilter.java:60)
	at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1610)
	at org.springframework.boot.actuate.web.trace.servlet.HttpTraceFilter.doFilterInternal(HttpTraceFilter.java:90)
	at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
	at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1610)
	at org.springframework.security.web.FilterChainProxy.doFilterInternal(FilterChainProxy.java:209)
	at org.springframework.security.web.FilterChainProxy.doFilter(FilterChainProxy.java:178)
	at org.springframework.web.filter.DelegatingFilterProxy.invokeDelegate(DelegatingFilterProxy.java:357)
	at org.springframework.web.filter.DelegatingFilterProxy.doFilter(DelegatingFilterProxy.java:270)
	at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1610)
	at org.springframework.web.filter.RequestContextFilter.doFilterInternal(RequestContextFilter.java:99)
	at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
	at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1610)
	at org.springframework.web.filter.FormContentFilter.doFilterInternal(FormContentFilter.java:92)
	at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
	at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1610)
	at org.springframework.web.filter.HiddenHttpMethodFilter.doFilterInternal(HiddenHttpMethodFilter.java:93)
	at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
	at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1610)
	at org.springframework.cloud.sleuth.instrument.web.ExceptionLoggingFilter.doFilter(ExceptionLoggingFilter.java:50)
	at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1610)
	at brave.servlet.TracingFilter.doFilter(TracingFilter.java:86)
	at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1610)
	at org.springframework.boot.actuate.metrics.web.servlet.WebMvcMetricsFilter.filterAndRecordMetrics(WebMvcMetricsFilter.java:117)
	at org.springframework.boot.actuate.metrics.web.servlet.WebMvcMetricsFilter.doFilterInternal(WebMvcMetricsFilter.java:106)
	at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
	at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1610)
	at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:200)
	at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
	at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1610)
	at my.RequestRejectedHandler.doFilter(RequestRejectedHandler.java:50)
	at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1610)
	at org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:540)
	at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:146)
	at org.eclipse.jetty.security.SecurityHandler.handle(SecurityHandler.java:548)
	at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:132)
	at org.eclipse.jetty.server.handler.ScopedHandler.nextHandle(ScopedHandler.java:257)
	at org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:1700)
	at org.eclipse.jetty.server.handler.ScopedHandler.nextHandle(ScopedHandler.java:255)
	at org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1345)
	at org.eclipse.jetty.server.handler.ScopedHandler.nextScope(ScopedHandler.java:203)
	at org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:480)
	at org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:1667)
	at org.eclipse.jetty.server.handler.ScopedHandler.nextScope(ScopedHandler.java:201)
	at org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:1247)
	at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:144)
	at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:132)
	at org.eclipse.jetty.server.Server.handle(Server.java:505)
	at org.eclipse.jetty.server.HttpChannel.handle(HttpChannel.java:370)
	at org.eclipse.jetty.server.HttpConnection.onFillable(HttpConnection.java:267)
	at org.eclipse.jetty.io.AbstractConnection$ReadCallback.succeeded(AbstractConnection.java:305)
	at org.eclipse.jetty.io.FillInterest.fillable(FillInterest.java:103)
	at org.eclipse.jetty.io.ChannelEndPoint$2.run(ChannelEndPoint.java:117)
	at org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:698)
	at org.eclipse.jetty.util.thread.QueuedThreadPool$Runner.run(QueuedThreadPool.java:804)
	at java.lang.Thread.run(Thread.java:748)

Anybody an Idea?

I have the boot app with the chaos monkey enabled. I have induced the latency by using the properties

chaos.monkey.assaults.latencyRangeStart=3000 chaos.monkey.assaults.latencyRangeEnd=15000 chaos.monkey.assaults.latencyActive=true

Now, this is inducing the latency on the controller layer, But I have called various legacy endpoints(SOAP and Rest) in the service layer. Theseproperties are not inducing any latency on these backend clients.
Is there any other property that can induce the latency on the Soap/rest clients?

I don't think this is a real issue. But, maybe I don't have a full understanding of how it works or what should have happened if I run my SpringBoot with ChaosMonkey. I have read the documentation but cannot fully understand how do I prove it is working or not. Can you please give us or explain to us what really happens when our Controllers, Service, Repository classes are intercepted and how was the problem found.

For me when I run my application and the demo app attached to this project I - I receive Chaos Monkey -timeout. Don't know what that is? Can you please help me, figure out.

Implement a increase memory assault

Hey,
Have you thought about using a custom annotation, that enables scanning for components in this library? Instead of using a special spring profile.

The benefit would be, that everyone could define their own profiles and it's the solution chosen by most other libraries.

eg. @EnableCircuitBreaker from Hystrix

I'd like to try contributing this if you're open for it :)

Hi Team,

is spring boot version 1.5.2.RELEASE is supported by chaos-monkey-spring-boot 1.0.1, we are seeing below error when trying to run the app by activating chaos monkey.

org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'de.codecentric.spring.boot.chaos.monkey.configuration.EndpointConfiguration': Instantiation of bean failed; nested exception is org.springframework.beans.BeanInstantiationException: Failed to instantiate [de.codecentric.spring.boot.chaos.monkey.configuration.EndpointConfiguration$$EnhancerBySpringCGLIB$$bd1c4f5a]: No default constructor found; nested exception is java.lang.NoSuchMethodException: de.codecentric.spring.boot.chaos.monkey.configuration.EndpointConfiguration$$EnhancerBySpringCGLIB$$bd1c4f5a.<init>()

Good afternoon,

I am doing a POC about the library running in this way:

java -cp ./target/spring-boot-chaos-poc-0.1.0-SNAPSHOT.jar \
-Dloader.path=chaos-monkey-spring-boot-2.0.0.jar \
org.springframework.boot.loader.PropertiesLauncher \
--spring.profiles.active=chaos-monkey

and if the property: chaos.monkey.watcher.controller: true appear in the configuration, the execution fails.

Error starting ApplicationContext. To display the conditions report re-run your application with 'debug' enabled.
2018-09-04 13:49:33.839 ERROR 70696 --- [           main] o.s.boot.SpringApplication               : Application run failed

org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'controllerAspect' defined in class path resource [de/codecentric/spri
ng/boot/chaos/monkey/configuration/ChaosMonkeyConfiguration.class]: Post-processing of merged bean definition failed; nested exception is java.lang.IllegalSt
ateException: Failed to introspect Class [de.codecentric.spring.boot.chaos.monkey.watcher.SpringControllerAspect] from ClassLoader [org.springframework.boot.
loader.LaunchedURLClassLoader@17dca04]

...
...

Caused by: java.lang.NoClassDefFoundError: org/aspectj/lang/ProceedingJoinPoint
        at java.lang.Class.getDeclaredMethods0(Native Method) ~[na:1.8.0_181]
        at java.lang.Class.privateGetDeclaredMethods(Unknown Source) ~[na:1.8.0_181]
        at java.lang.Class.getDeclaredMethods(Unknown Source) ~[na:1.8.0_181]
        at org.springframework.util.ReflectionUtils.getDeclaredMethods(ReflectionUtils.java:641) ~[spring-core-5.0.8.RELEASE.jar!/:5.0.8.RELEASE]
        ... 30 common frames omitted
Caused by: java.lang.ClassNotFoundException: org.aspectj.lang.ProceedingJoinPoint
        at java.net.URLClassLoader.findClass(Unknown Source) ~[na:1.8.0_181]
        at java.lang.ClassLoader.loadClass(Unknown Source) ~[na:1.8.0_181]
        at org.springframework.boot.loader.LaunchedURLClassLoader.loadClass(LaunchedURLClassLoader.java:93) ~[spring-boot-chaos-poc-0.1.0-SNAPSHOT.jar:0.1.0-
SNAPSHOT]
        at java.lang.ClassLoader.loadClass(Unknown Source) ~[na:1.8.0_181]

You can test it in the POC. I have isolated the scenario in this branch:
https://github.com/jabrena/spring-boot-chaos-poc/tree/feature/codecentric

How to run the example:

./runChaos.sh

Many thanks in advance

Juan Antonio

I have an app that use:
Spring boot version: 2.1.3.RELEASE,
Chaos Monkey: 2.0.0

i want to understand how Chaos monkey works, when i disable "chaos" by endpoint at runtime, i continue calling some Rest Services, i can get some "chaos monkey" exceptions even some latency remains that, but latency disappear after some calls but exceptions continue for more time

thanks

In the auto-configuration class ChaosMonkeyConfiguration all the aspect beans for the different Spring component types are created. The bean SpringRepositoryAspect seems to be missing though. Hence the Spring Boot Chaos Monkey never intercepts calls to @Repository components.

I have a spring mvc application. what are the different ways to inject chaos monkey for a non sprig boot application?

To activate/deactivate the Chaos Monkey at runtime, I want to switch from Spring Profile to a property base control.
We need to be able to turn Chaos Monkey on and off at any time. Only in this way are our chaos experiments under control and can be stopped at any time. Reduce the blast radius...!

Please vote up or down and share your thoughts!

When I enable chaos-monkey with spring-cloud-netflix-hystrix I'm getting the below error during Spring boot startup. Without netflix-hystrix it works fine.

2018-10-29 14:53:04.207 INFO 77719 --- [ main] Application : The following profiles are active: chaos-monkey
2018-10-29 14:53:04.224 INFO 77719 --- [ main] ConfigServletWebServerApplicationContext : Refreshing org.springframework.boot.web.servlet.context.AnnotationConfigServletWebServerApplicationContext@68df9280: startup date [Mon Oct 29 14:53:04 MST 2018]; parent: org.springframework.context.annotation.AnnotationConfigApplicationContext@c33b74f
2018-10-29 14:53:05.035 INFO 77719 --- [ main] o.s.cloud.context.scope.GenericScope : BeanFactory id=fa61d064-389d-3aa4-ab1e-880a6fc12488
2018-10-29 14:53:05.374 INFO 77719 --- [ main] trationDelegate$BeanPostProcessorChecker : Bean 'org.springframework.cloud.autoconfigure.ConfigurationPropertiesRebinderAutoConfiguration' of type [org.springframework.cloud.autoconfigure.ConfigurationPropertiesRebinderAutoConfiguration$$EnhancerBySpringCGLIB$$25a00ce0] is not eligible for getting processed by all BeanPostProcessors (for example: not eligible for auto-proxying)
2018-10-29 14:53:05.441 WARN 77719 --- [ main] ConfigServletWebServerApplicationContext : Exception encountered during context initialization - cancelling refresh attempt: org.springframework.context.ApplicationContextException: Unable to start web server; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'org.springframework.boot.autoconfigure.web.servlet.ServletWebServerFactoryConfiguration$EmbeddedTomcat': Initialization of bean failed; nested exception is org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'de.codecentric.spring.boot.chaos.monkey.configuration.ChaosMonkeyConfiguration': Unsatisfied dependency expressed through constructor parameter 0; nested exception is org.springframework.boot.context.properties.ConfigurationPropertiesBindException: Error creating bean with name 'chaos.monkey-de.codecentric.spring.boot.chaos.monkey.configuration.ChaosMonkeyProperties': Could not bind properties to 'ChaosMonkeyProperties' : prefix=chaos.monkey, ignoreInvalidFields=false, ignoreUnknownFields=true; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'org.springframework.boot.context.properties.ConversionServiceDeducer$Factory': Initialization of bean failed; nested exception is org.springframework.beans.factory.BeanCurrentlyInCreationException: Error creating bean with name 'componentAspect': Requested bean is currently in creation: Is there an unresolvable circular reference?
2018-10-29 14:53:05.452 INFO 77719 --- [ main] ConditionEvaluationReportLoggingListener :

Error starting ApplicationContext. To display the conditions report re-run your application with 'debug' enabled.
2018-10-29 14:53:05.460 ERROR 77719 --- [ main] o.s.boot.SpringApplication : Application run failed

org.springframework.context.ApplicationContextException: Unable to start web server; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'org.springframework.boot.autoconfigure.web.servlet.ServletWebServerFactoryConfiguration$EmbeddedTomcat': Initialization of bean failed; nested exception is org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'de.codecentric.spring.boot.chaos.monkey.configuration.ChaosMonkeyConfiguration': Unsatisfied dependency expressed through constructor parameter 0; nested exception is org.springframework.boot.context.properties.ConfigurationPropertiesBindException: Error creating bean with name 'chaos.monkey-de.codecentric.spring.boot.chaos.monkey.configuration.ChaosMonkeyProperties': Could not bind properties to 'ChaosMonkeyProperties' : prefix=chaos.monkey, ignoreInvalidFields=false, ignoreUnknownFields=true; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'org.springframework.boot.context.properties.ConversionServiceDeducer$Factory': Initialization of bean failed; nested exception is org.springframework.beans.factory.BeanCurrentlyInCreationException: Error creating bean with name 'componentAspect': Requested bean is currently in creation: Is there an unresolvable circular reference?
at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.onRefresh(ServletWebServerApplicationContext.java:155) ~[spring-boot-2.0.2.RELEASE.jar:2.0.2.RELEASE]
at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:544) ~[spring-context-5.0.6.RELEASE.jar:5.0.6.RELEASE]
at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.refresh(ServletWebServerApplicationContext.java:140) ~[spring-boot-2.0.2.RELEASE.jar:2.0.2.RELEASE]
at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:759) [spring-boot-2.0.2.RELEASE.jar:2.0.2.RELEASE]
at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:395) [spring-boot-2.0.2.RELEASE.jar:2.0.2.RELEASE]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:327) [spring-boot-2.0.2.RELEASE.jar:2.0.2.RELEASE]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:1255) [spring-boot-2.0.2.RELEASE.jar:2.0.2.RELEASE]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:1243) [spring-boot-2.0.2.RELEASE.jar:2.0.2.RELEASE]
at Application.main(Application.java:13) [classes/:na]
Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'org.springframework.boot.autoconfigure.web.servlet.ServletWebServerFactoryConfiguration$EmbeddedTomcat': Initialization of bean failed; nested exception is org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'de.codecentric.spring.boot.chaos.monkey.configuration.ChaosMonkeyConfiguration': Unsatisfied dependency expressed through constructor parameter 0; nested exception is org.springframework.boot.context.properties.ConfigurationPropertiesBindException: Error creating bean with name 'chaos.monkey-de.codecentric.spring.boot.chaos.monkey.configuration.ChaosMonkeyProperties': Could not bind properties to 'ChaosMonkeyProperties' : prefix=chaos.monkey, ignoreInvalidFields=false, ignoreUnknownFields=true; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'org.springframework.boot.context.properties.ConversionServiceDeducer$Factory': Initialization of bean failed; nested exception is org.springframework.beans.factory.BeanCurrentlyInCreationException: Error creating bean with name 'componentAspect': Requested bean is currently in creation: Is there an unresolvable circular reference?
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:587) ~[spring-beans-5.0.6.RELEASE.jar:5.0.6.RELEASE]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:501) ~[spring-beans-5.0.6.RELEASE.jar:5.0.6.RELEASE]
at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:317) ~[spring-beans-5.0.6.RELEASE.jar:5.0.6.RELEASE]
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:228) ~[spring-beans-5.0.6.RELEASE.jar:5.0.6.RELEASE]
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:315) ~[spring-beans-5.0.6.RELEASE.jar:5.0.6.RELEASE]
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:199) ~[spring-beans-5.0.6.RELEASE.jar:5.0.6.RELEASE]
at org.springframework.beans.factory.support.ConstructorResolver.instantiateUsingFactoryMethod(ConstructorResolver.java:368) ~[spring-beans-5.0.6.RELEASE.jar:5.0.6.RELEASE]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.instantiateUsingFactoryMethod(AbstractAutowireCapableBeanFactory.java:1254) ~[spring-beans-5.0.6.RELEASE.jar:5.0.6.RELEASE]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.java:1103) ~[spring-beans-5.0.6.RELEASE.jar:5.0.6.RELEASE]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:541) ~[spring-beans-5.0.6.RELEASE.jar:5.0.6.RELEASE]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:501) ~[spring-beans-5.0.6.RELEASE.jar:5.0.6.RELEASE]
at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:317) ~[spring-beans-5.0.6.RELEASE.jar:5.0.6.RELEASE]
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:228) ~[spring-beans-5.0.6.RELEASE.jar:5.0.6.RELEASE]
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:315) ~[spring-beans-5.0.6.RELEASE.jar:5.0.6.RELEASE]
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:204) ~[spring-beans-5.0.6.RELEASE.jar:5.0.6.RELEASE]
at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.getWebServerFactory(ServletWebServerApplicationContext.java:214) ~[spring-boot-2.0.2.RELEASE.jar:2.0.2.RELEASE]
at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.createWebServer(ServletWebServerApplicationContext.java:178) ~[spring-boot-2.0.2.RELEASE.jar:2.0.2.RELEASE]
at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.onRefresh(ServletWebServerApplicationContext.java:152) ~[spring-boot-2.0.2.RELEASE.jar:2.0.2.RELEASE]
... 8 common frames omitted

This is my pom.xml dependencies.

    <dependency>
        <groupId>de.codecentric</groupId>
        <artifactId>chaos-monkey-spring-boot</artifactId>
        <version>2.0.1</version>
    </dependency>

    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-actuator</artifactId>
    </dependency>

    <dependency>
        <groupId>org.springframework.cloud</groupId>
        <artifactId>spring-cloud-starter-netflix-hystrix</artifactId>
        <version>2.1.0.M1</version>
    </dependency>

Seems chaos-monkey-for-spring-boot is currently not working with java11. We should change that at some point. (Guess I would mark this as a feature request)

Basically two tests are failing:

Results :

Failed tests:   allowInterruptionOfAssaultDuringHoldPeriod(de.codecentric.spring.boot.chaos.monkey.assaults.MemoryAssaultIntegrationTest): Memory did not reach half exhaustion before timeout

Tests in error: 
  initializationError(de.codecentric.spring.boot.chaos.monkey.component.ChaosMonkeySchedulerTest): java.lang.reflect.InvocationTargetException
  initializationError(de.codecentric.spring.boot.chaos.monkey.assaults.LatencyAssaultTest): java.lang.reflect.InvocationTargetException

Tests run: 87, Failures: 1, Errors: 2, Skipped: 0

How to reproduce:

• use java11 locally and run mvn test

Example say we have three apis /getproductdetails, saveproductdetails,/deleteproductdetails etc..now can we have the ability to attack on specific apis only not sure whether we have this feature as of now.

I'm sorry if this is not an appropriate channel for questions, but I couldn't find another one.

I'm currently trying to comprehend chaos-monkey-spring-boot features and I noticed only attacks for requests. Are response attacks supported? It looks like, for example, that latency attack could be handy for responses too since it can simulate correct execution of business logic (including transactions) results of which arrive at the client with delay or not at all.

Tnx

Spring boot version: 2.1.3.RELEASE
Chaos Monkey: 2.0.1

Getting this error when request
GET --> http://localhost:7001/chaos/actuator/chaosmonkey

{ "code": "500", "message": "Type definition error: [simple type, class org.springframework.aop.framework.DefaultAdvisorChainFactory]; nested exception is com.fasterxml.jackson.databind.exc.InvalidDefinitionException: No serializer found for class org.springframework.aop.framework.DefaultAdvisorChainFactory and no properties discovered to create BeanSerializer (to avoid exception, disable SerializationFeature.FAIL_ON_EMPTY_BEANS) (through reference chain: de.codecentric.spring.boot.chaos.monkey.configuration.ChaosMonkeySettings[\"assaultProperties\"]->de.codecentric.spring.boot.chaos.monkey.configuration.AssaultProperties$$EnhancerBySpringCGLIB$$b9e4d763[\"CGLIB$CALLBACK_0\"]->org.springframework.aop.framework.CglibAopProxy$DynamicAdvisedInterceptor[\"advised\"]->org.springframework.aop.framework.ProxyFactory[\"advisorChainFactory\"])" }

I would love to be able to trigger and turn-off attacks at runtime as this would then allow me to run temporary experiments against the system without restarting applications to load new configuration parameters around chaos.

I was thinking of something along the lines of a runtime switch to enable the management API:

chaos.monkey.api.enabled

There will likely be limitations about what can be triggered, depending on what has been enabled.

Hi - Please check/suggest/help. Thanks.

cd /usr/share/chaos/chaos-monkey-spring-boot-master/chaos-monkey-spring-boot/
mvn clean install
BUILD SUCCESS

cd /usr/share/chaos/chaos-monkey-spring-boot-master/chaos-monkey-spring-boot/target
java -jar chaos-monkey-spring-boot-2.0.1-SNAPSHOT.jar --spring.profiles.active=chaos-monkey
Issue: no main manifest attribute, in chaos-monkey-spring-boot-2.0.1-SNAPSHOT.jar

Regards
Venkat

Using version 2.0.0 with SpringBoot 2.0.3 in application.properties I am able to set the
chaos.monkey.assaults.level over the value defined in the @Max annotation on the level field.

Example:
chaos.monkey.assaults.level = 100

I am using:

de.codecentric
chaos-monkey-spring-boot
1.5.0

I need to use this version as we are using springboot 1.5 in our application

Here is my basic config:
spring:
profiles: chaos-monkey
chaos:
monkey:
enabled: true
watcher:
controller: false
restController: false
service: false
repository: true
component: false
assaults:
level: 3
latencyActive: false
exceptionsActive: true
killApplicationActive: false
latencyRangeStart: 3000
latencyRangeEnd: 6000

When I hit any of the POST or GET chaosMonkey endpoints either from the browser or via curl i get 404 Not found in response

Hi codecentric team,

I am trying to explore chaos monkey for spring boot microservice which I have deployed on Pivotal web service. I deploy microservice with 'cf push' command and it reads definition from manifest.yml file.
If I have to implement chaos monkey then can you please provide detailed steps in my setup?
I do not have : application.properties and application.yml inside my app. So how do I employ this tool?
Also if I enable dependency in pom.xml - where do I copy chaos monkey library inside my app?
I am sorry for these questions - I am a newbie in this field. Appreciate your help on this.

Thanks - Sachin

when starting demo app
getting error as below.

No changes was done on the code.

I've configured chaos.monkey.watcher.rest-controller: true ( intellij completed 'rest-controller' for me, so I may be not only one with this issue :) ) and it turned out that code inside de.codecentric.spring.boot.chaos.monkey.conditions.AttackRestControllerCondition does not fetch it - it returns false because context.getEnvironment().getProperty("chaos.monkey.watcher.restController") seems to not take relaxed binding into consideration.

I'm not sure if it's because core of spring does not use relaxed binding or it's some other issue.

It would be nice to have:

• Contribution Guidelines (noting to update docs and release notes),
• Code of Conduct,
• PR template (to make sure there is an issue for that particular PR)

Instead of watching components that implement a function and assaulting it, watch for outgoing calls (using RestTemplate) and assault this.

We are trying to use this code in our Spring boot application. We use pivotal cloud foundry to deploy the code. When we have this in the application.yml:
spring:
profiles:
active: chaos-monkey
chaos:
monkey:
enabled: true

And also when we add watcher and try to re-stage or start the application. We are seeing errors:--

ConfigServletWebServerApplicationContext : Exception encountered during context initialization - cancelling refresh attempt: org.springframework.context.ApplicationContextException: Unable to start web server; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'org.springframework.boot.autoconfigure.web.servlet.ServletWebServerFactoryConfiguration$EmbeddedTomcat': Initialization of bean failed; nested exception is org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'de.codecentric.spring.boot.chaos.monkey.configuration.ChaosMonkeyConfiguration': Unsatisfied dependency expressed through constructor parameter 0; nested exception is org.springframework.boot.context.properties.ConfigurationPropertiesBindException: Error creating bean with name 'chaos.monkey-de.codecentric.spring.boot.chaos.monkey.configuration.ChaosMonkeyProperties': Could not bind properties to 'ChaosMonkeyProperties' : prefix=chaos.monkey, ignoreInvalidFields=false, ignoreUnknownFields=true; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'org.springframework.boot.context.properties.ConversionServiceDeducer$Factory': Initialization of bean failed; nested exception is org.springframework.beans.factory.BeanCurrentlyInCreationException: Error creating bean with name 'componentAspect': Requested bean is currently in creation: Is there an unresolvable circular reference?

With spring boot 1.4 i am getting the config errors. Upgraded the project to 1.5 but the config error does not go away . If i remove the chaos monkey jar from pom.xml file then runtime error goes away.

I'm using chaos-monkey-for-spring-boot 1.5.0 with Spring boot 1.5.x

I have a SB application which contains a data access layer jar in it's pom.xml.

The application calls the dal methods to reach out to downstream db/ldap components via the Autowired classes from the DAL dependency, which is @repository annotated.

How can I inject latency after the DAL dependency methods are called?

Currently, I have set watcher properties as below:
"watcherProperties":{ "controller": true, "restController": false, "service": true, "repository": true, "component": false }
The application contains chaos-monkey-for-spring-boot pom dependency but the dal dependency doesn't.

can I use this to test a SPring MVC application instead of Spring BOOT?

Expected Behavior

When setting up a memory assault I expect it to work in the following:

• Docs tell me what I need to consider when using this type of attack (like that there is a grain of error for such attacks, and that they need to be fine-tuned from system to system).

Current Behavior

• On systems with more RAM than 32GB memory assault does not work propery (available heap and memory fill percent do not correlate as expected)

Possible Solution

• Refactor the corresponding attack to be more concise and easier to understand. Refactor it so that it does one thing and one thing only.
• Add docs so with good examples so that it is clear to a possible user on what to expect from that attack.

Steps to Reproduce

• Use current snapshot build
• Run for example on java 11 >= 32GB RAM
• run MemoryAssaultIntegrationTests

We love this library! Would you mind if we submitted a pr to raise the assult level max from 10 to 1000? Thanks!

Would the metric features on version 2.0.1 be replicated to version 1.5.0? Some applications are running on spring boot 1.5.0, and would take long to migrate to version 2.0 due to their complexity before they are able to use chaos-monkey-spring-boot. Would be great if you share your plans/thoughts on this.

{
"timestamp": "2019-06-03T12:31:34.711+0000",
"status": 500,
"error": "Internal Server Error",
"message": "Type definition error: [simple type, class org.springframework.validation.beanvalidation.MethodValidationInterceptor]; nested exception is com.fasterxml.jackson.databind.exc.InvalidDefinitionException: No serializer found for class org.springframework.validation.beanvalidation.MethodValidationInterceptor and no properties discovered to create BeanSerializer (to avoid exception, disable SerializationFeature.FAIL_ON_EMPTY_BEANS) (through reference chain: de.codecentric.spring.boot.chaos.monkey.configuration.ChaosMonkeySettings["assaultProperties"]->de.codecentric.spring.boot.chaos.monkey.configuration.AssaultProperties$$EnhancerBySpringCGLIB$$6141c1b["advisors"]->org.springframework.aop.support.DefaultPointcutAdvisor[0]->org.springframework.aop.support.DefaultPointcutAdvisor["advice"])",
"path": "/actuator/chaosmonkey"
}