camel-issues mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "Mateusz Nowakowski (JIRA)" <j...@apache.org>
Subject [jira] [Created] (CAMEL-8793) Deadlock between Spring and SpringCamelContext
Date Sat, 23 May 2015 13:29:17 GMT
Mateusz Nowakowski created CAMEL-8793:
-----------------------------------------

             Summary: Deadlock between Spring and SpringCamelContext
                 Key: CAMEL-8793
                 URL: https://issues.apache.org/jira/browse/CAMEL-8793
             Project: Camel
          Issue Type: Bug
          Components: camel-spring
    Affects Versions: 2.15.2
         Environment: Spring 4.1.5.RELEASE
            Reporter: Mateusz Nowakowski


Scenario:
- used  Camel spring with <camelContext id="flows" xmlns="http://camel.apache.org/schema/spring"
/>

- camelContext is used by some internal bean to expose an api to register routes for other
thread

- Spring hasn't finished  initializing beans from the spring context contains Spring Camel
context

- different thread starts using an api - calling indirectly Spring Camel context to register
routes

- Camel context in order to add route get locks: camel context, spring singleton lock (due
to spring registry), but initial thread starting Spring context get lock: spring singleton
lock, camel context... causing deadlock.

Workaround:
- create and start DefaultCamelContext without Spring Registry.

{code}
Found one Java-level deadlock:
=============================
"localhost-startStop-6":
  waiting to lock monitor 0xf350f544 (object 0x7e04a668, a org.apache.camel.spring.SpringCamelContext),
  which is held by "lifecycleWorker6"
"lifecycleWorker6":
  waiting to lock monitor 0xf33ecc84 (object 0x7f01dc70, a java.util.concurrent.ConcurrentHashMap),
  which is held by "localhost-startStop-6"

Java stack information for the threads listed above:
===================================================
"localhost-startStop-6":
	at org.apache.camel.impl.DefaultCamelContext.addRouteDefinitions(DefaultCamelContext.java:767)
	- waiting to lock <0x7e04a668> (a org.apache.camel.spring.SpringCamelContext)
	at org.apache.camel.builder.RouteBuilder.populateRoutes(RouteBuilder.java:397)
	at org.apache.camel.builder.RouteBuilder.addRoutesToCamelContext(RouteBuilder.java:311)
	at org.apache.camel.impl.DefaultCamelContext$1.call(DefaultCamelContext.java:731)
	at org.apache.camel.impl.DefaultCamelContext$1.call(DefaultCamelContext.java:728)
	at org.apache.camel.impl.DefaultCamelContext.doWithDefinedClassLoader(DefaultCamelContext.java:2486)
	at org.apache.camel.impl.DefaultCamelContext.addRoutes(DefaultCamelContext.java:728)
	at com.blablabla.BlaBlaRegistrar.registerBlaBlas(BlaBlaRegistrar.java:50)	
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:601)
	at org.springframework.beans.factory.annotation.InitDestroyAnnotationBeanPostProcessor$LifecycleElement.invoke(InitDestroyAnnotationBeanPostProcessor.java:349)
	at org.springframework.beans.factory.annotation.InitDestroyAnnotationBeanPostProcessor$LifecycleMetadata.invokeInitMethods(InitDestroyAnnotationBeanPostProcessor.java:300)
	at org.springframework.beans.factory.annotation.InitDestroyAnnotationBeanPostProcessor.postProcessBeforeInitialization(InitDestroyAnnotationBeanPostProcessor.java:133)
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.applyBeanPostProcessorsBeforeInitialization(AbstractAutowireCapableBeanFactory.java:408)
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1558)
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:539)
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:476)
	at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:303)
	at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:230)
	- locked <0x7f01dc70> (a java.util.concurrent.ConcurrentHashMap)
	at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:299)
	at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:194)
	at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:755)
	at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:757)
	at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:480)
	- locked <0x7d8b79b0> (a java.lang.Object)
	at org.springframework.web.context.ContextLoader.configureAndRefreshWebApplicationContext(ContextLoader.java:403)
	at org.springframework.web.context.ContextLoader.initWebApplicationContext(ContextLoader.java:306)
	at org.springframework.web.context.ContextLoaderListener.contextInitialized(ContextLoaderListener.java:106)
	at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:4887)
	at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5381)
	- locked <0x7b9bde78> (a org.apache.catalina.core.StandardContext)
	at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
	- locked <0x7b9bde78> (a org.apache.catalina.core.StandardContext)
	at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:901)
	at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:877)
	at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:633)
	at org.apache.catalina.startup.HostConfig.deployWAR(HostConfig.java:977)
	at org.apache.catalina.startup.HostConfig$DeployWar.run(HostConfig.java:1655)
	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471)
	at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:334)
	at java.util.concurrent.FutureTask.run(FutureTask.java:166)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
	at java.lang.Thread.run(Thread.java:722)
"lifecycleWorker6":
	at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:188)
	- waiting to lock <0x7f01dc70> (a java.util.concurrent.ConcurrentHashMap)
	at org.springframework.beans.factory.support.AbstractBeanFactory.isTypeMatch(AbstractBeanFactory.java:487)
	at org.springframework.beans.factory.support.DefaultListableBeanFactory.doGetBeanNamesForType(DefaultListableBeanFactory.java:436)
	at org.springframework.beans.factory.support.DefaultListableBeanFactory.getBeanNamesForType(DefaultListableBeanFactory.java:412)
	at org.springframework.beans.factory.support.DefaultListableBeanFactory.getBeansOfType(DefaultListableBeanFactory.java:519)
	at org.springframework.beans.factory.support.DefaultListableBeanFactory.getBeansOfType(DefaultListableBeanFactory.java:512)
	at org.springframework.context.support.AbstractApplicationContext.getBeansOfType(AbstractApplicationContext.java:1052)
	at org.springframework.beans.factory.BeanFactoryUtils.beansOfTypeIncludingAncestors(BeanFactoryUtils.java:228)
	at org.apache.camel.spring.spi.ApplicationContextRegistry.findByTypeWithName(ApplicationContextRegistry.java:85)
	at org.apache.camel.impl.PropertyPlaceholderDelegateRegistry.findByTypeWithName(PropertyPlaceholderDelegateRegistry.java:70)
	at org.apache.camel.processor.interceptor.DefaultChannel.getOrCreateBacklogDebugger(DefaultChannel.java:372)
	at org.apache.camel.processor.interceptor.DefaultChannel.initChannel(DefaultChannel.java:235)
	at org.apache.camel.model.ProcessorDefinition.wrapChannel(ProcessorDefinition.java:273)
	at org.apache.camel.model.ProcessorDefinition.createOutputsProcessor(ProcessorDefinition.java:440)
	at org.apache.camel.model.ProcessorDefinition.createOutputsProcessor(ProcessorDefinition.java:163)
	at org.apache.camel.model.OnExceptionDefinition.addRoutes(OnExceptionDefinition.java:193)
	at org.apache.camel.model.RouteDefinition.addRoutes(RouteDefinition.java:1025)
	at org.apache.camel.model.RouteDefinition.addRoutes(RouteDefinition.java:185)
	at org.apache.camel.impl.DefaultCamelContext.startRoute(DefaultCamelContext.java:841)
	at org.apache.camel.impl.DefaultCamelContext.startRouteDefinitions(DefaultCamelContext.java:2895)
	at org.apache.camel.impl.DefaultCamelContext.addRouteDefinitions(DefaultCamelContext.java:775)
	- locked <0x7e04a668> (a org.apache.camel.spring.SpringCamelContext)
	at org.apache.camel.builder.RouteBuilder.populateRoutes(RouteBuilder.java:397)
	at org.apache.camel.builder.RouteBuilder.addRoutesToCamelContext(RouteBuilder.java:311)
	at org.apache.camel.impl.DefaultCamelContext$1.call(DefaultCamelContext.java:731)
	at org.apache.camel.impl.DefaultCamelContext$1.call(DefaultCamelContext.java:728)
	at org.apache.camel.impl.DefaultCamelContext.doWithDefinedClassLoader(DefaultCamelContext.java:2486)
	at org.apache.camel.impl.DefaultCamelContext.addRoutes(DefaultCamelContext.java:728)
	at com.blablabla.BlaBlaRegistrar.registerBlaBlas(BlaBlaRegistrar.java:50)
	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471)
	at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:334)
	at java.util.concurrent.FutureTask.run(FutureTask.java:166)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
	at java.lang.Thread.run(Thread.java:722)

Found 1 deadlock.
{code}



--
This message was sent by Atlassian JIRA
(v6.3.4#6332)

Mime
View raw message