Valentin Kulichenko created IGNITE-3024:
-------------------------------------------

             Summary: Possible deadlock in services when Spring is used
                 Key: IGNITE-3024
                 URL: https://issues.apache.org/jira/browse/IGNITE-3024
             Project: Ignite
          Issue Type: Bug
          Components: managed services
    Affects Versions: 1.5.0.final
            Reporter: Valentin Kulichenko
            Assignee: Valentin Kulichenko
             Fix For: 1.6


Resource injection in service processor happens inside synchronized block (see 
{{redeploy()}} method). During injection Spring will acquire its global bean 
factory lock:
{noformat}
"srvc-deploy-#54%xxx%":
        at 
org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:187)
        - waiting to lock <0x00000006c03e2290> (a 
java.util.concurrent.ConcurrentHashMap)
        at 
org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:173)
        at 
org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:240)
        at 
org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:194)
        at 
org.springframework.context.support.AbstractApplicationContext.getBean(AbstractApplicationContext.java:956)
        at 
org.apache.ignite.internal.processors.resource.GridResourceSpringBeanInjector.inject(GridResourceSpringBeanInjector.java:65)
        at 
org.apache.ignite.internal.processors.resource.GridResourceIoc.injectInternal(GridResourceIoc.java:172)
        at 
org.apache.ignite.internal.processors.resource.GridResourceIoc.inject(GridResourceIoc.java:97)
        at 
org.apache.ignite.internal.processors.resource.GridResourceProcessor.inject(GridResourceProcessor.java:510)
        at 
org.apache.ignite.internal.processors.service.GridServiceProcessor.copyAndInject(GridServiceProcessor.java:957)
        at 
org.apache.ignite.internal.processors.service.GridServiceProcessor.redeploy(GridServiceProcessor.java:873)
        - locked <0x000000077ffd4e50> (a java.util.ArrayList)
        at 
org.apache.ignite.internal.processors.service.GridServiceProcessor.access$4400(GridServiceProcessor.java:94)
        at 
org.apache.ignite.internal.processors.service.GridServiceProcessor$AssignmentListener$1.run0(GridServiceProcessor.java:1348)
        at 
org.apache.ignite.internal.processors.service.GridServiceProcessor$BusyRunnable.run(GridServiceProcessor.java:1399)
        at 
java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
        at java.util.concurrent.FutureTask.run(FutureTask.java:266)
        at 
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
        at 
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
        at java.lang.Thread.run(Thread.java:745)
{noformat}
If some Spring bean creates a service proxy during initialization, we can get a 
deadlock:
{noformat}
"localhost-startStop-1":
        at 
org.apache.ignite.internal.processors.service.GridServiceProcessor.serviceContext(GridServiceProcessor.java:613)
        - waiting to lock <0x000000077ffd4e50> (a java.util.ArrayList)
        at 
org.apache.ignite.internal.processors.service.GridServiceProcessor.serviceProxy(GridServiceProcessor.java:633)
        at 
org.apache.ignite.internal.IgniteServicesImpl.serviceProxy(IgniteServicesImpl.java:232)
        ...
        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:497)
        at 
org.springframework.beans.factory.support.SimpleInstantiationStrategy.instantiate(SimpleInstantiationStrategy.java:162)
        at 
org.springframework.beans.factory.support.ConstructorResolver.instantiateUsingFactoryMethod(ConstructorResolver.java:588)
        at 
org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.instantiateUsingFactoryMethod(AbstractAutowireCapableBeanFactory.java:1119)
        at 
org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.java:1014)
        at 
org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:504)
        at 
org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:476)
        at 
org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:303)
        at 
org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:230)
        - locked <0x00000006c03e2290> (a java.util.concurrent.ConcurrentHashMap)
        at 
org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:299)
        at 
org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:194)
        at 
org.springframework.beans.factory.support.DefaultListableBeanFactory.findAutowireCandidates(DefaultListableBeanFactory.java:1120)
        at 
org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:1044)
        at 
org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:942)
        at 
org.springframework.context.annotation.CommonAnnotationBeanPostProcessor.autowireResource(CommonAnnotationBeanPostProcessor.java:457)
        at 
org.springframework.context.annotation.CommonAnnotationBeanPostProcessor.getResource(CommonAnnotationBeanPostProcessor.java:435)
        at 
org.springframework.context.annotation.CommonAnnotationBeanPostProcessor$ResourceElement.getResourceToInject(CommonAnnotationBeanPostProcessor.java:559)
        at 
org.springframework.beans.factory.annotation.InjectionMetadata$InjectedElement.inject(InjectionMetadata.java:169)
        at 
org.springframework.beans.factory.annotation.InjectionMetadata.inject(InjectionMetadata.java:88)
        at 
org.springframework.context.annotation.CommonAnnotationBeanPostProcessor.postProcessPropertyValues(CommonAnnotationBeanPostProcessor.java:305)
        at 
org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1210)
        at 
org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:537)
        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 <0x00000006c03e2290> (a java.util.concurrent.ConcurrentHashMap)
        ...
{noformat}
We should make sure that injections are not happening inside other locks.



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