[jboss-jira] [JBoss JIRA] (AS7-4274) Remoting deadlock after deserialization exception of a large object graph returned from EJB.

Fri Sep 21 05:43:36 EDT 2012

    [ https://issues.jboss.org/browse/AS7-4274?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12720561#comment-12720561 ] 

jaikiran pai commented on AS7-4274:
-----------------------------------

I've created https://issues.jboss.org/browse/AS7-5592 to track this possible regression.

> Remoting deadlock after deserialization exception of a large object graph returned from EJB.
> --------------------------------------------------------------------------------------------
>
>                 Key: AS7-4274
>                 URL: https://issues.jboss.org/browse/AS7-4274
>             Project: Application Server 7
>          Issue Type: Bug
>          Components: EJB, Remoting
>    Affects Versions: 7.1.1.Final
>         Environment: JBoss AS 7.1.1.Final
>            Reporter: Daniel Bevenius
>            Assignee: David Lloyd
>             Fix For: 7.1.2.Final (EAP)
>
>         Attachments: ejb-deadlock-maven.jar, ejb-deadlock.jar, thread-dump.txt
>
>
> The use case is a remote EJB client that calls an EJB which returns a large object graph. Due to a configuration error on our part a class that is part of this object graph is not available in the clients classpath. This causes a ClassNotFoundException to be thrown when deserializing, and after this exception is thrown the client "freezes" but can be interrupted by CTRL+C, but the server will deadlock and will not respond and has to be shutdown by killing the server process.
> Below is part of the thread dump (the complete thread dump will be attached to this jira)
> {noformat}
> "Remoting "beve-7719" read-1" prio=5 tid=00000000028cc800 nid=0xb56ab000 waiting for monitor entry [00000000b56aa000]
>    java.lang.Thread.State: BLOCKED (on object monitor)
>     at org.xnio.streams.BufferPipeOutputStream.close(BufferPipeOutputStream.java:156)
>     - waiting to lock <0000000005697300> (a org.xnio.streams.BufferPipeOutputStream)
>     at org.xnio.IoUtils.safeClose(IoUtils.java:137)
>     at org.jboss.remoting3.remote.OutboundMessage.closeAsync(OutboundMessage.java:158)
>     at org.jboss.remoting3.remote.RemoteConnectionChannel.handleAsyncClose(RemoteConnectionChannel.java:502)
>     at org.jboss.remoting3.remote.RemoteReadListener.handleEvent(RemoteReadListener.java:259)
>     at org.jboss.remoting3.remote.RemoteReadListener.handleEvent(RemoteReadListener.java:45)
>     at org.xnio.ChannelListeners.invokeChannelListener(ChannelListeners.java:72)
>     at org.xnio.channels.TranslatingSuspendableChannel.handleReadable(TranslatingSuspendableChannel.java:189)
>     at org.xnio.channels.TranslatingSuspendableChannel$1.handleEvent(TranslatingSuspendableChannel.java:103)
>     at org.xnio.ChannelListeners.invokeChannelListener(ChannelListeners.java:72)
>     at org.xnio.nio.NioHandle.run(NioHandle.java:90)
>     at org.xnio.nio.WorkerThread.run(WorkerThread.java:184)
>    Locked ownable synchronizers:
>     - None 
> "EJB default - 4" prio=5 tid=0000000002a10c00 nid=0xb3971000 in Object.wait() [00000000b3970000]
>    java.lang.Thread.State: WAITING (on object monitor)
>     at java.lang.Object.wait(Native Method)
>     - waiting on <00000000056972d0> (a org.jboss.remoting3.remote.OutboundMessage)
>     at java.lang.Object.wait(Object.java:485)
>     at org.jboss.remoting3.remote.OutboundMessage$1.accept(OutboundMessage.java:91)
>     - locked <00000000056972d0> (a org.jboss.remoting3.remote.OutboundMessage)
>     at org.xnio.streams.BufferPipeOutputStream.send(BufferPipeOutputStream.java:125)
>     at org.xnio.streams.BufferPipeOutputStream.send(BufferPipeOutputStream.java:113)
>     at org.xnio.streams.BufferPipeOutputStream.getBuffer(BufferPipeOutputStream.java:77)
>     at org.xnio.streams.BufferPipeOutputStream.write(BufferPipeOutputStream.java:86)
>     - locked <0000000005697300> (a org.xnio.streams.BufferPipeOutputStream)
>     at org.jboss.remoting3.remote.OutboundMessage.write(OutboundMessage.java:168)
>     at java.io.DataOutputStream.write(DataOutputStream.java:71)
>     - locked <00000000056972b8> (a java.io.DataOutputStream)
>     at org.jboss.as.ejb3.remote.protocol.versionone.AbstractMessageHandler$1.write(AbstractMessageHandler.java:188)
>     at java.io.OutputStream.write(OutputStream.java:99)
>     at org.jboss.marshalling.OutputStreamByteOutput.write(OutputStreamByteOutput.java:56)
>     at org.jboss.marshalling.SimpleDataOutput.flush(SimpleDataOutput.java:311)
>     at org.jboss.marshalling.SimpleDataOutput.write(SimpleDataOutput.java:82)
>     at org.jboss.marshalling.river.BlockMarshaller.flush(BlockMarshaller.java:306)
>     at org.jboss.marshalling.river.RiverMarshaller.writeEndBlock(RiverMarshaller.java:961)
>     at org.jboss.marshalling.river.RiverMarshaller.doWriteSerializableObject(RiverMarshaller.java:1008)
>     at org.jboss.marshalling.river.RiverMarshaller.doWriteObject(RiverMarshaller.java:885)
>     at org.jboss.marshalling.river.RiverMarshaller.doWriteObject(RiverMarshaller.java:825)
>     at org.jboss.marshalling.river.RiverMarshaller.doWriteFields(RiverMarshaller.java:1063)
>     at org.jboss.marshalling.river.RiverMarshaller.doWriteSerializableObject(RiverMarshaller.java:1019)
>     at org.jboss.marshalling.river.RiverMarshaller.doWriteObject(RiverMarshaller.java:885)
>     at org.jboss.marshalling.AbstractObjectOutput.writeObject(AbstractObjectOutput.java:62)
>     at org.jboss.marshalling.AbstractMarshaller.writeObject(AbstractMarshaller.java:119)
>     at org.jboss.as.ejb3.remote.protocol.versionone.MethodInvocationMessageHandler.writeMethodInvocationResponse(MethodInvocationMessageHandler.java:338)
>     at org.jboss.as.ejb3.remote.protocol.versionone.MethodInvocationMessageHandler.access$500(MethodInvocationMessageHandler.java:64)
>     at org.jboss.as.ejb3.remote.protocol.versionone.MethodInvocationMessageHandler$1.run(MethodInvocationMessageHandler.java:226)
>     at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:441)
>     at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:303)
>     at java.util.concurrent.FutureTask.run(FutureTask.java:138)
>     at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
>     at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
>     at java.lang.Thread.run(Thread.java:680)
>     at org.jboss.threads.JBossThread.run(JBossThread.java:122)
>    Locked ownable synchronizers:
>     - <0000000008350f48> (a java.util.concurrent.locks.ReentrantLock$NonfairSync)
> {noformat}

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