[jboss-jira] [JBoss JIRA] (WFLY-9900) EJB client rarely hangs

David Lloyd (JIRA) issues at jboss.org
Mon Feb 26 12:24:00 EST 2018


    [ https://issues.jboss.org/browse/WFLY-9900?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13538407#comment-13538407 ] 

David Lloyd commented on WFLY-9900:
-----------------------------------

Let me know if the stack trace looks something like this:

{noformat}
"main" #1 prio=5 os_prio=0 tid=0xf6507800 nid=0x1d9 waiting on condition [0xf667f000]
   java.lang.Thread.State: WAITING (parking)
	at sun.misc.Unsafe.park(Native Method)
	- parking to wait for  <0xe17ba650> (a org.xnio.FutureResult$1)
	at java.util.concurrent.locks.LockSupport.park(LockSupport.java:175)
	at org.xnio.AbstractIoFuture.await(AbstractIoFuture.java:419)
	at org.xnio.AbstractIoFuture.get(AbstractIoFuture.java:535)
	at org.wildfly.naming.client.remote.RemoteNamingProvider.getPeerIdentity(RemoteNamingProvider.java:126)
	at org.wildfly.naming.client.remote.RemoteNamingProvider.getPeerIdentityForNaming(RemoteNamingProvider.java:106)
	at org.wildfly.naming.client.remote.RemoteNamingProvider.getPeerIdentityForNaming(RemoteNamingProvider.java:53)
	at org.wildfly.naming.client.NamingProvider.getPeerIdentityForNamingUsingRetry(NamingProvider.java:105)
	at org.wildfly.naming.client.remote.RemoteNamingProvider.getPeerIdentityForNamingUsingRetry(RemoteNamingProvider.java:91)
	at org.wildfly.naming.client.remote.RemoteContext.lambda$lookupNative$0(RemoteContext.java:189)
	at org.wildfly.naming.client.remote.RemoteContext$$Lambda$170/31050501.apply(Unknown Source)
	at org.wildfly.naming.client.NamingProvider.performExceptionAction(NamingProvider.java:222)
	at org.wildfly.naming.client.remote.RemoteContext.performWithRetry(RemoteContext.java:100)
	at org.wildfly.naming.client.remote.RemoteContext.lookupNative(RemoteContext.java:188)
	at org.wildfly.naming.client.AbstractFederatingContext.lookup(AbstractFederatingContext.java:74)
	at org.wildfly.naming.client.AbstractFederatingContext.lookup(AbstractFederatingContext.java:60)
	at org.wildfly.naming.client.WildFlyRootContext.lookup(WildFlyRootContext.java:144)
	at javax.naming.InitialContext.lookup(InitialContext.java:417)
	at org.wildfly.test.integration.elytron.sasl.AbstractSaslTestBase.sendAndReceiveMsg(AbstractSaslTestBase.java:93)
	at org.wildfly.test.integration.elytron.sasl.DefaultSaslConfigTestCase.lambda$testDigestInDefault$2(DefaultSaslConfigTestCase.java:97)
	at org.wildfly.test.integration.elytron.sasl.DefaultSaslConfigTestCase$$Lambda$183/9484794.run(Unknown Source)
	at org.wildfly.common.context.Contextual.run(Contextual.java:73)
	at org.wildfly.test.integration.elytron.sasl.DefaultSaslConfigTestCase.testDigestInDefault(DefaultSaslConfigTestCase.java:97)
	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.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:50)
	at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)
	at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:47)
	at org.jboss.arquillian.junit.Arquillian$8$1.invoke(Arquillian.java:379)
	at org.jboss.arquillian.container.test.impl.execution.LocalTestExecuter.execute(LocalTestExecuter.java:60)
	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.jboss.arquillian.core.impl.ObserverImpl.invoke(ObserverImpl.java:96)
	at org.jboss.arquillian.core.impl.EventContextImpl.invokeObservers(EventContextImpl.java:103)
	at org.jboss.arquillian.core.impl.EventContextImpl.proceed(EventContextImpl.java:85)
	at org.jboss.arquillian.core.impl.ManagerImpl.fire(ManagerImpl.java:143)
	at org.jboss.arquillian.core.impl.ManagerImpl.fire(ManagerImpl.java:114)
	at org.jboss.arquillian.core.impl.EventImpl.fire(EventImpl.java:67)
	at org.jboss.arquillian.container.test.impl.execution.ClientTestExecuter.execute(ClientTestExecuter.java:53)
	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.jboss.arquillian.core.impl.ObserverImpl.invoke(ObserverImpl.java:96)
	at org.jboss.arquillian.core.impl.EventContextImpl.invokeObservers(EventContextImpl.java:103)
	at org.jboss.arquillian.core.impl.EventContextImpl.proceed(EventContextImpl.java:85)
	at org.jboss.arquillian.container.test.impl.client.ContainerEventController.createContext(ContainerEventController.java:142)
	at org.jboss.arquillian.container.test.impl.client.ContainerEventController.createTestContext(ContainerEventController.java:129)
	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.jboss.arquillian.core.impl.ObserverImpl.invoke(ObserverImpl.java:96)
	at org.jboss.arquillian.core.impl.EventContextImpl.proceed(EventContextImpl.java:92)
	at org.jboss.arquillian.test.impl.TestContextHandler.createTestContext(TestContextHandler.java:130)
	at sun.reflect.GeneratedMethodAccessor3.invoke(Unknown Source)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:498)
	at org.jboss.arquillian.core.impl.ObserverImpl.invoke(ObserverImpl.java:96)
	at org.jboss.arquillian.core.impl.EventContextImpl.proceed(EventContextImpl.java:92)
	at org.jboss.arquillian.test.impl.TestContextHandler.createClassContext(TestContextHandler.java:92)
	at sun.reflect.GeneratedMethodAccessor2.invoke(Unknown Source)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:498)
	at org.jboss.arquillian.core.impl.ObserverImpl.invoke(ObserverImpl.java:96)
	at org.jboss.arquillian.core.impl.EventContextImpl.proceed(EventContextImpl.java:92)
	at org.jboss.arquillian.test.impl.TestContextHandler.createSuiteContext(TestContextHandler.java:73)
	at sun.reflect.GeneratedMethodAccessor1.invoke(Unknown Source)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:498)
	at org.jboss.arquillian.core.impl.ObserverImpl.invoke(ObserverImpl.java:96)
	at org.jboss.arquillian.core.impl.EventContextImpl.proceed(EventContextImpl.java:92)
	at org.jboss.arquillian.core.impl.ManagerImpl.fire(ManagerImpl.java:143)
	at org.jboss.arquillian.test.impl.EventTestRunnerAdaptor.test(EventTestRunnerAdaptor.java:136)
	at org.jboss.arquillian.junit.Arquillian$8.evaluate(Arquillian.java:372)
	at org.jboss.arquillian.junit.Arquillian$4.evaluate(Arquillian.java:246)
	at org.jboss.arquillian.junit.Arquillian.multiExecute(Arquillian.java:431)
	at org.jboss.arquillian.junit.Arquillian.access$200(Arquillian.java:55)
	at org.jboss.arquillian.junit.Arquillian$5.evaluate(Arquillian.java:260)
	at org.jboss.arquillian.junit.Arquillian$7$1.invoke(Arquillian.java:324)
	at org.jboss.arquillian.container.test.impl.execution.ClientBeforeAfterLifecycleEventExecuter.execute(ClientBeforeAfterLifecycleEventExecuter.java:99)
	at org.jboss.arquillian.container.test.impl.execution.ClientBeforeAfterLifecycleEventExecuter.on(ClientBeforeAfterLifecycleEventExecuter.java:72)
	at sun.reflect.GeneratedMethodAccessor5.invoke(Unknown Source)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:498)
	at org.jboss.arquillian.core.impl.ObserverImpl.invoke(ObserverImpl.java:96)
	at org.jboss.arquillian.core.impl.EventContextImpl.invokeObservers(EventContextImpl.java:103)
	at org.jboss.arquillian.core.impl.EventContextImpl.proceed(EventContextImpl.java:85)
	at org.jboss.arquillian.container.test.impl.client.ContainerEventController.createContext(ContainerEventController.java:142)
	at org.jboss.arquillian.container.test.impl.client.ContainerEventController.createBeforeContext(ContainerEventController.java:124)
	at sun.reflect.GeneratedMethodAccessor4.invoke(Unknown Source)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:498)
	at org.jboss.arquillian.core.impl.ObserverImpl.invoke(ObserverImpl.java:96)
	at org.jboss.arquillian.core.impl.EventContextImpl.proceed(EventContextImpl.java:92)
	at org.jboss.arquillian.test.impl.TestContextHandler.createTestContext(TestContextHandler.java:130)
	at sun.reflect.GeneratedMethodAccessor3.invoke(Unknown Source)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:498)
	at org.jboss.arquillian.core.impl.ObserverImpl.invoke(ObserverImpl.java:96)
	at org.jboss.arquillian.core.impl.EventContextImpl.proceed(EventContextImpl.java:92)
	at org.jboss.arquillian.test.impl.TestContextHandler.createClassContext(TestContextHandler.java:92)
	at sun.reflect.GeneratedMethodAccessor2.invoke(Unknown Source)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:498)
	at org.jboss.arquillian.core.impl.ObserverImpl.invoke(ObserverImpl.java:96)
	at org.jboss.arquillian.core.impl.EventContextImpl.proceed(EventContextImpl.java:92)
	at org.jboss.arquillian.test.impl.TestContextHandler.createSuiteContext(TestContextHandler.java:73)
	at sun.reflect.GeneratedMethodAccessor1.invoke(Unknown Source)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:498)
	at org.jboss.arquillian.core.impl.ObserverImpl.invoke(ObserverImpl.java:96)
	at org.jboss.arquillian.core.impl.EventContextImpl.proceed(EventContextImpl.java:92)
	at org.jboss.arquillian.core.impl.ManagerImpl.fire(ManagerImpl.java:143)
	at org.jboss.arquillian.core.impl.ManagerImpl.fire(ManagerImpl.java:114)
	at org.jboss.arquillian.test.impl.EventTestRunnerAdaptor.fireCustomLifecycle(EventTestRunnerAdaptor.java:159)
	at org.jboss.arquillian.junit.Arquillian$7.evaluate(Arquillian.java:317)
	at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:325)
	at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:78)
	at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:57)
	at org.junit.runners.ParentRunner$3.run(ParentRunner.java:290)
	at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:71)
	at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:288)
	at org.junit.runners.ParentRunner.access$000(ParentRunner.java:58)
	at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:268)
	at org.jboss.arquillian.junit.Arquillian$2.evaluate(Arquillian.java:205)
	at org.jboss.arquillian.junit.Arquillian.multiExecute(Arquillian.java:431)
	at org.jboss.arquillian.junit.Arquillian.access$200(Arquillian.java:55)
	at org.jboss.arquillian.junit.Arquillian$3.evaluate(Arquillian.java:219)
	at org.junit.runners.ParentRunner.run(ParentRunner.java:363)
	at org.jboss.arquillian.junit.Arquillian.run(Arquillian.java:167)
	at org.junit.runners.Suite.runChild(Suite.java:128)
	at org.junit.runners.Suite.runChild(Suite.java:27)
	at org.junit.runners.ParentRunner$3.run(ParentRunner.java:290)
	at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:71)
	at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:288)
	at org.junit.runners.ParentRunner.access$000(ParentRunner.java:58)
	at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:268)
	at org.junit.runners.ParentRunner.run(ParentRunner.java:363)
	at org.apache.maven.surefire.junitcore.JUnitCore.run(JUnitCore.java:55)
	at org.apache.maven.surefire.junitcore.JUnitCoreWrapper.createRequestAndRun(JUnitCoreWrapper.java:137)
	at org.apache.maven.surefire.junitcore.JUnitCoreWrapper.executeEager(JUnitCoreWrapper.java:107)
	at org.apache.maven.surefire.junitcore.JUnitCoreWrapper.execute(JUnitCoreWrapper.java:83)
	at org.apache.maven.surefire.junitcore.JUnitCoreWrapper.execute(JUnitCoreWrapper.java:75)
	at org.apache.maven.surefire.junitcore.JUnitCoreProvider.invoke(JUnitCoreProvider.java:161)
	at org.apache.maven.surefire.booter.ForkedBooter.invokeProviderInSameClassLoader(ForkedBooter.java:290)
	at org.apache.maven.surefire.booter.ForkedBooter.runSuitesInProcess(ForkedBooter.java:242)
	at org.apache.maven.surefire.booter.ForkedBooter.main(ForkedBooter.java:121)
{noformat}

> EJB client rarely hangs
> -----------------------
>
>                 Key: WFLY-9900
>                 URL: https://issues.jboss.org/browse/WFLY-9900
>             Project: WildFly
>          Issue Type: Bug
>          Components: Clustering, EJB
>    Affects Versions: 12.0.0.Beta1
>            Reporter: Richard Janík
>            Assignee: David Lloyd
>
> Seen in our clustering tests where remote EJB clients invoke beans on 4 servers in cluster, while each of those is being killed and restarted. This is done in sequence and there's plenty of time in between the kill/start/kill-another (1 minute).
> In two ouf our tests, we saw a small number of clients hang and resist termination at the end. The scenarios are:
> [jvmkill-dist-sync|https://jenkins.hosts.mwqe.eng.bos.redhat.com/hudson/job/perflab_eap-7x-failover-ejb-ejbremote-jvmkill-dist-sync/36/] (36 clients)
> [shutdown-dist-sync|https://jenkins.hosts.mwqe.eng.bos.redhat.com/hudson/job/perflab_eap-7x-failover-ejb-ejbremote-shutdown-dist-sync-3owners/32/] (1 client)
> The hangs are not related to any error or warning message on the server-side. There are ClosedChannelExceptions on the client side, but these seem to be unrelated as the numbers of clients reporting the exceptions are not the same (lower) as the numbers of hanging clients.
> No thread dump as I didn't manage to reproduce yet.
> Might be related to JBEAP-12074 or JBEAP-13169.



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