Hi,
On 01.03.11 11:15, "Bigard Olivier" <[email protected]> wrote: >Hi all, > >We faced a deadlock issue with iPojo 1.6.4 (and also reproduced with >iPojo 1.8.0). >Here are the details of the context: > > >1) We have a first iPojo Component that we will call "PDP". >This Component is declared with the 3 iPojo annotations "Component", >"Instantiate" and "Provides". > >2) We have a second iPojo Component that we will call "PEP". >This Component is declared with the 3 iPojo annotations "Component", >"Instantiate" and "Provides". >This Component requires the "PDP" Component with a "@Requires(policy = >"dynamic-priority")" annotation. >In a public method of the "PEP" Component we try to access to a method of >the "PDP" reference. Thanks, I will try to reproduce it and check > >During some tests, we are facing the following deadlock problem: > >2011-02-28 16:38:12,379 - [Thread Monitor] WARN >(WatcherActivator.deadlockDetected:70) - Thread Deadlock detected... >2011-02-28 16:38:12,379 - [Thread Monitor] WARN >(WatcherActivator.deadlockDetected:71) - Deadlocked Thread: >"AsyncRequest-1" Id=87 BLOCKED on >org.apache.felix.ipojo.handlers.providedservice.ProvidedService@1664cb5 >owned by "Thread-7" Id=29 > at >org.apache.felix.ipojo.handlers.providedservice.ProvidedService.update(Pro >videdService.java:446) > - blocked on >org.apache.felix.ipojo.handlers.providedservice.ProvidedService@1664cb5 > at >org.apache.felix.ipojo.handlers.providedservice.ProvidedServiceHandler.__o >nSet(ProvidedServiceHandler.java:432) > at >org.apache.felix.ipojo.handlers.providedservice.ProvidedServiceHandler.onS >et(ProvidedServiceHandler.java) > at >org.apache.felix.ipojo.InstanceManager.onSet(InstanceManager.java:1102) > at >com.axway.drw.core.defimpl.policy.DefaultPolicyDecisionPoint.__setranking( >DefaultPolicyDecisionPoint.java) > at >com.axway.drw.core.defimpl.policy.DefaultPolicyDecisionPoint.<init>(Defaul >tPolicyDecisionPoint.java:32) > at >sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method) > at >sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAcc >essorImpl.java:39) > >sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstr >uctorAccessorImpl.java:27) > >java.lang.reflect.Constructor.newInstance(Constructor.java:513) > >org.apache.felix.ipojo.InstanceManager.createObject(InstanceManager.java:6 >01) > >org.apache.felix.ipojo.InstanceManager.getPojoObject(InstanceManager.java: >777) > >org.apache.felix.ipojo.handlers.providedservice.ProvidedService$SingletonS >trategy.getService(ProvidedService.java:691) > >org.apache.felix.ipojo.handlers.providedservice.ProvidedService.getService >(ProvidedService.java:306) > >org.apache.felix.framework.ServiceRegistrationImpl.getFactoryUnchecked(Ser >viceRegistrationImpl.java:307) > >org.apache.felix.framework.ServiceRegistrationImpl.getService(ServiceRegis >trationImpl.java:221) > >org.apache.felix.framework.ServiceRegistry.getService(ServiceRegistry.java >:295) > >org.apache.felix.framework.Felix.getService(Felix.java:3007) > >org.apache.felix.framework.BundleContextImpl.getService(BundleContextImpl. >java:329) > >org.apache.felix.ipojo.IPojoContext.getService(IPojoContext.java:260) > >org.apache.felix.ipojo.util.Tracker.getService(Tracker.java:441) > >org.apache.felix.ipojo.util.DependencyModel.getService(DependencyModel.jav >a:911) > >org.apache.felix.ipojo.handlers.dependency.Dependency.createServiceObject( >Dependency.java:631) > >org.apache.felix.ipojo.handlers.dependency.Dependency.onGet(Dependency.jav >a:602) > >org.apache.felix.ipojo.InstanceManager.onGet(InstanceManager.java:945) > >com.axway.darwin.server.core.rest.impl.rest.policy.RestPolicyEnforcementPo >int.__getpdp(RestPolicyEnforcementPoint.java) > >com.axway.darwin.server.core.rest.impl.rest.policy.RestPolicyEnforcementPo >int.__preFilter(RestPolicyEnforcementPoint.java:170) > >com.axway.darwin.server.core.rest.impl.rest.policy.RestPolicyEnforcementPo >int.preFilter(RestPolicyEnforcementPoint.java) > >com.axway.darwin.server.core.rest.impl.rest.InterceptorFilterManager.preFi >lter(InterceptorFilterManager.java:86) > >com.axway.darwin.server.core.rest.impl.rest.InterceptorFilterManager.acces >s$200(InterceptorFilterManager.java:32) > >com.axway.darwin.server.core.rest.impl.rest.InterceptorFilterManager$Resou >rceFilterAdapter.filter(InterceptorFilterManager.java:132) > >com.sun.jersey.server.impl.uri.rules.HttpMethodRule.accept(HttpMethodRule. >java:270) > >com.sun.jersey.server.impl.uri.rules.RightHandPathRule.accept(RightHandPat >hRule.java:136) > >com.sun.jersey.server.impl.uri.rules.ResourceObjectRule.accept(ResourceObj >ectRule.java:84) > >com.sun.jersey.server.impl.uri.rules.RightHandPathRule.accept(RightHandPat >hRule.java:136) > >com.sun.jersey.server.impl.uri.rules.RootResourceClassesRule.accept(RootRe >sourceClassesRule.java:74) > >com.sun.jersey.server.impl.application.WebApplicationImpl._handleRequest(W >ebApplicationImpl.java:1347) > >com.sun.jersey.server.impl.application.WebApplicationImpl._handleRequest(W >ebApplicationImpl.java:1279) > >com.sun.jersey.server.impl.application.WebApplicationImpl.handleRequest(We >bApplicationImpl.java:1229) > >com.sun.jersey.server.impl.application.WebApplicationImpl.handleRequest(We >bApplicationImpl.java:1219) > >com.sun.jersey.server.impl.container.grizzly.GrizzlyContainer._service(Gri >zzlyContainer.java:180) > >com.sun.jersey.server.impl.container.grizzly.GrizzlyContainer.service(Griz >zlyContainer.java:145) > >com.sun.grizzly.tcp.http11.GrizzlyAdapter.service(GrizzlyAdapter.java:168) > >com.axway.darwin.server.core.rest.impl.rest.JerseyAdapter.service(JerseyAd >apter.java:124) > >com.axway.darwin.server.core.http.impl.auth.GrizzlyAuthenticationFilter.se >rveProtectedAdapter(GrizzlyAuthenticationFilter.java:374) > >com.axway.darwin.server.core.http.impl.auth.GrizzlyAuthenticationFilter.se >rvice(GrizzlyAuthenticationFilter.java:96) > >com.axway.darwin.server.core.http.async.AsyncRequest.run(AsyncRequest.java >:63) > >java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor. >java:886) > >java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java >:908) > java.lang.Thread.run(Thread.java:662) > >2011-02-28 16:38:12,379 - [Thread Monitor] WARN >(WatcherActivator.deadlockDetected:70) - Thread Deadlock detected... >2011-02-28 16:38:12,379 - [Thread Monitor] WARN >(WatcherActivator.deadlockDetected:71) - Deadlocked Thread: >"Thread-7" Id=29 BLOCKED on >org.apache.felix.ipojo.util.Tracker$Tracked@a28708 owned by >"AsyncRequest-1" Id=87 > at >org.apache.felix.ipojo.util.Tracker$Tracked.track(Tracker.java:666) > - blocked on >org.apache.felix.ipojo.util.Tracker$Tracked@a28708 > at >org.apache.felix.ipojo.util.Tracker$Tracked.serviceChanged(Tracker.java:64 >7) > at >org.apache.felix.framework.util.EventDispatcher.invokeServiceListenerCallb >ack(EventDispatcher.java:864) > at >org.apache.felix.framework.util.EventDispatcher.fireEventImmediately(Event >Dispatcher.java:732) > at >org.apache.felix.framework.util.EventDispatcher.fireServiceEvent(EventDisp >atcher.java:662) > at >org.apache.felix.framework.Felix.fireServiceEvent(Felix.java:3726) > at >org.apache.felix.framework.Felix.access$000(Felix.java:80) > at >org.apache.felix.framework.Felix$2.serviceChanged(Felix.java:717) > >org.apache.felix.framework.ServiceRegistry.servicePropertiesModified(Servi >ceRegistry.java:478) > >org.apache.felix.framework.ServiceRegistrationImpl.setProperties(ServiceRe >gistrationImpl.java:116) > >org.apache.felix.ipojo.handlers.providedservice.ProvidedService.registerSe >rvice(ProvidedService.java:348) > >org.apache.felix.ipojo.handlers.providedservice.ProvidedServiceHandler.__s >tateChanged(ProvidedServiceHandler.java:494) > >org.apache.felix.ipojo.handlers.providedservice.ProvidedServiceHandler.sta >teChanged(ProvidedServiceHandler.java) > >org.apache.felix.ipojo.InstanceManager.setState(InstanceManager.java:441) > >org.apache.felix.ipojo.InstanceManager.start(InstanceManager.java:322) > >org.apache.felix.ipojo.ComponentFactory.createInstance(ComponentFactory.ja >va:155) > >org.apache.felix.ipojo.IPojoFactory.createComponentInstance(IPojoFactory.j >ava:301) > >org.apache.felix.ipojo.IPojoFactory.createComponentInstance(IPojoFactory.j >ava:238) > >org.apache.felix.ipojo.InstanceCreator$ManagedInstance.create(InstanceCrea >tor.java:343) > >org.apache.felix.ipojo.InstanceCreator.addInstance(InstanceCreator.java:89 >) > org.apache.felix.ipojo.Extender.parse(Extender.java:269) > >org.apache.felix.ipojo.Extender.startManagementFor(Extender.java:208) > >org.apache.felix.ipojo.Extender.access$600(Extender.java:52) > >org.apache.felix.ipojo.Extender$CreatorThread.run(Extender.java:682) > java.lang.Thread.run(Thread.java:662) > >It seems that the 2 threads are trying to modify the same >"ProvidedService" instance: the first one to update the value of the >"ServiceRanking" property and the second one to change its state. > >One very important information: we tried to change the way to instantiate >the second Component ("PDP") by using the XML instead of the annotation >and the deadlock disappeared! This just change the order of the declaration that make the difference. Indeed, both XML and annotations are mixed in the bundle manifest. Regards, Clement > >Thank you for your help >Olivier --------------------------------------------------------------------- To unsubscribe, e-mail: [email protected] For additional commands, e-mail: [email protected]
