New subject: [JBoss JIRA] (AS7-3638) Allow configurations for channels created by the EJB client API

Monday, 6 February 2012

Radoslav Husar created AS7-3638:
-----------------------------------

             Summary: EJB client threads waiting at
EJBClientInvocationContext.awaitResponse
                 Key: AS7-3638
                 URL: https://issues.jboss.org/browse/AS7-3638
             Project: Application Server 7
          Issue Type: Feature Request
          Components: EJB
    Affects Versions: 7.1.0.Final
            Reporter: Radoslav Husar
            Assignee: jaikiran pai

See threads named "Runner - 70". A timeout doesnt kick in? Maybe related to
seeing ChannelBusyException: Too many open outbound writes before?

{noformat}
2012-02-06 10:24:55
Full thread dump Java HotSpot(TM) 64-Bit Server VM (20.5-b03 mixed mode):

"Attach Listener" daemon prio=10 tid=0x00007fd160025000 nid=0x56e8 waiting on
condition [0x0000000000000000]
   java.lang.Thread.State: RUNNABLE

"RMI TCP Connection(10)-10.16.90.52" daemon prio=10 tid=0x00007fd148002800
nid=0x4caf in Object.wait() [0x00007fd176ca7000]
   java.lang.Thread.State: WAITING (on object monitor)
        at java.lang.Object.wait(Native Method)
        at java.lang.Object.wait(Object.java:485)
        at org.jboss.smartfrog.loaddriver.LoadDriverImpl.stop(LoadDriverImpl.java:359)
        - locked <0x00000006bfeb2fc0> (a
org.jboss.smartfrog.loaddriver.LoadDriverImpl)
        at
org.jboss.smartfrog.loaddriver.LoadDriverImpl.setState(LoadDriverImpl.java:341)
        - locked <0x00000006bfeb2fc0> (a
org.jboss.smartfrog.loaddriver.LoadDriverImpl)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
        at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
        at java.lang.reflect.Method.invoke(Method.java:597)
        at sun.rmi.server.UnicastServerRef.dispatch(UnicastServerRef.java:303)
        at sun.rmi.transport.Transport$1.run(Transport.java:159)
        at java.security.AccessController.doPrivileged(Native Method)
        at sun.rmi.transport.Transport.serviceCall(Transport.java:155)
        at sun.rmi.transport.tcp.TCPTransport.handleMessages(TCPTransport.java:535)
        at
sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run0(TCPTransport.java:790)
        at
sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run(TCPTransport.java:649)
        at
java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
        at
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
        at java.lang.Thread.run(Thread.java:662)

"Remoting "config-based-ejb-client-endpoint" task-4" daemon prio=10
tid=0x00007fd0ac0a4000 nid=0x4675 waiting on condition [0x00007fd0959d1000]
   java.lang.Thread.State: WAITING (parking)
        at sun.misc.Unsafe.park(Native Method)
        - parking to wait for  <0x00000006bfeb2bf0> (a
java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject)
        at java.util.concurrent.locks.LockSupport.park(LockSupport.java:156)
        at
java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:1987)
        at java.util.concurrent.LinkedBlockingQueue.take(LinkedBlockingQueue.java:399)
        at org.xnio.LimitedBlockingQueue.take(LimitedBlockingQueue.java:95)
        at java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:947)
        at
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:907)
        at java.lang.Thread.run(Thread.java:662)

"Remoting "config-based-ejb-client-endpoint" task-3" daemon prio=10
tid=0x00007fd0ac07a800 nid=0x4674 waiting on condition [0x00007fd095ad2000]
   java.lang.Thread.State: WAITING (parking)
        at sun.misc.Unsafe.park(Native Method)
        - parking to wait for  <0x00000006bfeb2bf0> (a
java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject)
        at java.util.concurrent.locks.LockSupport.park(LockSupport.java:156)
        at
java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:1987)
        at java.util.concurrent.LinkedBlockingQueue.take(LinkedBlockingQueue.java:399)
        at org.xnio.LimitedBlockingQueue.take(LimitedBlockingQueue.java:95)
        at java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:947)
        at
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:907)
        at java.lang.Thread.run(Thread.java:662)

"Remoting "config-based-ejb-client-endpoint" task-2" daemon prio=10
tid=0x00007fd0ac04e800 nid=0x4673 waiting on condition [0x00007fd095bd3000]
   java.lang.Thread.State: WAITING (parking)
        at sun.misc.Unsafe.park(Native Method)
        - parking to wait for  <0x00000006bfeb2bf0> (a
java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject)
        at java.util.concurrent.locks.LockSupport.park(LockSupport.java:156)
        at
java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:1987)
        at java.util.concurrent.LinkedBlockingQueue.take(LinkedBlockingQueue.java:399)
        at org.xnio.LimitedBlockingQueue.take(LimitedBlockingQueue.java:95)
        at java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:947)
        at
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:907)
        at java.lang.Thread.run(Thread.java:662)

"Remoting "config-based-ejb-client-endpoint" task-1" daemon prio=10
tid=0x00007fd0ac04d000 nid=0x4672 waiting on condition [0x00007fd095cd4000]
   java.lang.Thread.State: WAITING (parking)
        at sun.misc.Unsafe.park(Native Method)
        - parking to wait for  <0x00000006bfeb2bf0> (a
java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject)
        at java.util.concurrent.locks.LockSupport.park(LockSupport.java:156)
        at
java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:1987)
        at java.util.concurrent.LinkedBlockingQueue.take(LinkedBlockingQueue.java:399)
        at org.xnio.LimitedBlockingQueue.take(LimitedBlockingQueue.java:95)
        at java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:947)
        at
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:907)
        at java.lang.Thread.run(Thread.java:662)

"Remoting "config-based-ejb-client-endpoint" write-1" daemon prio=10
tid=0x00007fd0d40cb000 nid=0x4671 runnable [0x00007fd095dd5000]
   java.lang.Thread.State: RUNNABLE
        at sun.nio.ch.EPollArrayWrapper.epollWait(Native Method)
        at sun.nio.ch.EPollArrayWrapper.poll(EPollArrayWrapper.java:210)
        at sun.nio.ch.EPollSelectorImpl.doSelect(EPollSelectorImpl.java:65)
        at sun.nio.ch.SelectorImpl.lockAndDoSelect(SelectorImpl.java:69)
        - locked <0x00000006bfeb0d20> (a sun.nio.ch.Util$2)
        - locked <0x00000006bfeb0d30> (a java.util.Collections$UnmodifiableSet)
        - locked <0x00000006bfeb0cd8> (a sun.nio.ch.EPollSelectorImpl)
        at sun.nio.ch.SelectorImpl.select(SelectorImpl.java:80)
        at org.xnio.nio.WorkerThread.run(WorkerThread.java:157)

"Remoting "config-based-ejb-client-endpoint" read-1" daemon prio=10
tid=0x00007fd0d4096800 nid=0x4670 runnable [0x00007fd095ed6000]
   java.lang.Thread.State: RUNNABLE
        at sun.nio.ch.EPollArrayWrapper.epollWait(Native Method)
        at sun.nio.ch.EPollArrayWrapper.poll(EPollArrayWrapper.java:210)
        at sun.nio.ch.EPollSelectorImpl.doSelect(EPollSelectorImpl.java:65)
        at sun.nio.ch.SelectorImpl.lockAndDoSelect(SelectorImpl.java:69)
        - locked <0x00000006bfeace78> (a sun.nio.ch.Util$2)
        - locked <0x00000006bfeace88> (a java.util.Collections$UnmodifiableSet)
        - locked <0x00000006bfeace30> (a sun.nio.ch.EPollSelectorImpl)
        at sun.nio.ch.SelectorImpl.select(SelectorImpl.java:80)
        at sun.nio.ch.SelectorImpl.select(SelectorImpl.java:84)
        at org.xnio.nio.WorkerThread.run(WorkerThread.java:153)

"Runner - 70" daemon prio=10 tid=0x00007fd13005e800 nid=0x4652 in Object.wait()
[0x00007fd097dfc000]
   java.lang.Thread.State: WAITING (on object monitor)
        at java.lang.Object.wait(Native Method)
        at java.lang.Object.wait(Object.java:485)
        at
org.jboss.ejb.client.EJBClientInvocationContext.awaitResponse(EJBClientInvocationContext.java:330)
        - locked <0x00000006c2944170> (a java.lang.Object)
        at
org.jboss.ejb.client.EJBInvocationHandler.doInvoke(EJBInvocationHandler.java:126)
        at
org.jboss.ejb.client.EJBInvocationHandler.doInvoke(EJBInvocationHandler.java:107)
        at org.jboss.ejb.client.EJBInvocationHandler.invoke(EJBInvocationHandler.java:90)
        at $Proxy0.getSerialAndIncrement(Unknown Source)
        at
org.jboss.smartfrog.clustering.ejb3.StatefulSBProcessorFactoryImpl$EJB3RequestProcessor.processRequest(StatefulSBProcessorFactoryImpl.java:68)
        at
org.jboss.smartfrog.loaddriver.CompoundRequestProcessorFactoryImpl$CompoundRequestProcessor.processRequest(CompoundRequestProcessorFactoryImpl.java:51)
        at org.jboss.smartfrog.loaddriver.Runner.run(Runner.java:87)
        at java.lang.Thread.run(Thread.java:662)

"Runner - 42" daemon prio=10 tid=0x00007fd1300bc800 nid=0x4636 in Object.wait()
[0x00007fd165a66000]
   java.lang.Thread.State: WAITING (on object monitor)
        at java.lang.Object.wait(Native Method)
        at java.lang.Object.wait(Object.java:485)
        at
org.jboss.ejb.client.EJBClientInvocationContext.awaitResponse(EJBClientInvocationContext.java:330)
        - locked <0x00000006c2952170> (a java.lang.Object)
        at
org.jboss.ejb.client.EJBInvocationHandler.doInvoke(EJBInvocationHandler.java:126)
        at
org.jboss.ejb.client.EJBInvocationHandler.doInvoke(EJBInvocationHandler.java:107)
        at org.jboss.ejb.client.EJBInvocationHandler.invoke(EJBInvocationHandler.java:90)
        at $Proxy0.getSerialAndIncrement(Unknown Source)
        at
org.jboss.smartfrog.clustering.ejb3.StatefulSBProcessorFactoryImpl$EJB3RequestProcessor.processRequest(StatefulSBProcessorFactoryImpl.java:68)
        at
org.jboss.smartfrog.loaddriver.CompoundRequestProcessorFactoryImpl$CompoundRequestProcessor.processRequest(CompoundRequestProcessorFactoryImpl.java:51)
        at org.jboss.smartfrog.loaddriver.Runner.run(Runner.java:87)
        at java.lang.Thread.run(Thread.java:662)

"process reaper" daemon prio=10 tid=0x00007fd11c001000 nid=0x3aec runnable
[0x00007fd17629e000]
   java.lang.Thread.State: RUNNABLE
        at java.lang.UNIXProcess.waitForProcessExit(Native Method)
        at java.lang.UNIXProcess.access$900(UNIXProcess.java:20)
        at java.lang.UNIXProcess$1$1.run(UNIXProcess.java:132)

"Thread-9" daemon prio=10 tid=0x00007fd13006d000 nid=0x3aea waiting on condition
[0x00007fd1764a0000]
   java.lang.Thread.State: TIMED_WAITING (sleeping)
        at java.lang.Thread.sleep(Native Method)
        at
org.jboss.smartfrog.stats.collector.JVMMemoryStatsCollector.run(JVMMemoryStatsCollector.java:223)
        at java.lang.Thread.run(Thread.java:662)

"Thread-8" daemon prio=10 tid=0x00007fd13009b800 nid=0x3ae9 runnable
[0x00007fd1765a1000]
   java.lang.Thread.State: RUNNABLE
        at java.io.FileInputStream.readBytes(Native Method)
        at java.io.FileInputStream.read(FileInputStream.java:220)
        at java.io.BufferedInputStream.read1(BufferedInputStream.java:256)
        at java.io.BufferedInputStream.read(BufferedInputStream.java:317)
        - locked <0x00000006bfed9978> (a java.io.BufferedInputStream)
        at sun.nio.cs.StreamDecoder.readBytes(StreamDecoder.java:264)
        at sun.nio.cs.StreamDecoder.implRead(StreamDecoder.java:306)
        at sun.nio.cs.StreamDecoder.read(StreamDecoder.java:158)
        - locked <0x00000006bfed9a30> (a java.io.InputStreamReader)
        at java.io.InputStreamReader.read(InputStreamReader.java:167)
        at java.io.BufferedReader.fill(BufferedReader.java:136)
        at java.io.BufferedReader.readLine(BufferedReader.java:299)
        - locked <0x00000006bfed9a30> (a java.io.InputStreamReader)
        at java.io.BufferedReader.readLine(BufferedReader.java:362)
        at
org.jboss.smartfrog.stats.collector.CPUStatsCollector.run(CPUStatsCollector.java:120)
        at java.lang.Thread.run(Thread.java:662)

"RMI RenewClean-[10.16.90.52:58690]" daemon prio=10 tid=0x00007fd13001e000
nid=0x3ab5 in Object.wait() [0x00007fd176ba7000]
   java.lang.Thread.State: TIMED_WAITING (on object monitor)
        at java.lang.Object.wait(Native Method)
        at java.lang.ref.ReferenceQueue.remove(ReferenceQueue.java:118)
        - locked <0x00000006bff744b8> (a java.lang.ref.ReferenceQueue$Lock)
        at
sun.rmi.transport.DGCClient$EndpointEntry$RenewCleanThread.run(DGCClient.java:516)
        at java.lang.Thread.run(Thread.java:662)

"RMI Scheduler(0)" daemon prio=10 tid=0x00007fd138021800 nid=0x3ab2 waiting on
condition [0x00007fd176da9000]
   java.lang.Thread.State: TIMED_WAITING (parking)
        at sun.misc.Unsafe.park(Native Method)
        - parking to wait for  <0x00000006bfe94480> (a
java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject)
        at java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:196)
        at
java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.awaitNanos(AbstractQueuedSynchronizer.java:2025)
        at java.util.concurrent.DelayQueue.take(DelayQueue.java:164)
        at
java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:609)
        at
java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:602)
        at java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:947)
        at
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:907)
        at java.lang.Thread.run(Thread.java:662)

"DestroyJavaVM" prio=10 tid=0x00007fd1a0008000 nid=0x3930 waiting on condition
[0x0000000000000000]
   java.lang.Thread.State: RUNNABLE

"RMI TCP Accept-3800" daemon prio=10 tid=0x00007fd1a00ab800 nid=0x3946 runnable
[0x00007fd177381000]
   java.lang.Thread.State: RUNNABLE
        at java.net.PlainSocketImpl.socketAccept(Native Method)
        at java.net.PlainSocketImpl.accept(PlainSocketImpl.java:408)
        - locked <0x00000006bfec6db0> (a java.net.SocksSocketImpl)
        at java.net.ServerSocket.implAccept(ServerSocket.java:462)
        at java.net.ServerSocket.accept(ServerSocket.java:430)
        at
sun.rmi.transport.tcp.TCPTransport$AcceptLoop.executeAcceptLoop(TCPTransport.java:369)
        at sun.rmi.transport.tcp.TCPTransport$AcceptLoop.run(TCPTransport.java:341)
        at java.lang.Thread.run(Thread.java:662)

"GC Daemon" daemon prio=10 tid=0x00007fd1a0480800 nid=0x3945 in Object.wait()
[0x00007fd177482000]
   java.lang.Thread.State: TIMED_WAITING (on object monitor)
        at java.lang.Object.wait(Native Method)
        - waiting on <0x00000006bfe0c798> (a sun.misc.GC$LatencyLock)
        at sun.misc.GC$Daemon.run(GC.java:100)
        - locked <0x00000006bfe0c798> (a sun.misc.GC$LatencyLock)

"RMI Reaper" prio=10 tid=0x00007fd1a0465800 nid=0x3944 in Object.wait()
[0x00007fd177583000]
   java.lang.Thread.State: WAITING (on object monitor)
        at java.lang.Object.wait(Native Method)
        - waiting on <0x00000006bfe00100> (a java.lang.ref.ReferenceQueue$Lock)
        at java.lang.ref.ReferenceQueue.remove(ReferenceQueue.java:118)
        - locked <0x00000006bfe00100> (a java.lang.ref.ReferenceQueue$Lock)
        at java.lang.ref.ReferenceQueue.remove(ReferenceQueue.java:134)
        at sun.rmi.transport.ObjectTable$Reaper.run(ObjectTable.java:333)
        at java.lang.Thread.run(Thread.java:662)

"RMI TCP Accept-0" daemon prio=10 tid=0x00007fd1a03f3800 nid=0x3943 runnable
[0x00007fd177684000]
   java.lang.Thread.State: RUNNABLE
        at java.net.PlainSocketImpl.socketAccept(Native Method)
        at java.net.PlainSocketImpl.accept(PlainSocketImpl.java:408)
        - locked <0x00000006bfe067c0> (a java.net.SocksSocketImpl)
        at java.net.ServerSocket.implAccept(ServerSocket.java:462)
        at java.net.ServerSocket.accept(ServerSocket.java:430)
        at
sun.rmi.transport.tcp.TCPTransport$AcceptLoop.executeAcceptLoop(TCPTransport.java:369)
        at sun.rmi.transport.tcp.TCPTransport$AcceptLoop.run(TCPTransport.java:341)
        at java.lang.Thread.run(Thread.java:662)

"Low Memory Detector" daemon prio=10 tid=0x00007fd1a033f000 nid=0x393f runnable
[0x0000000000000000]
   java.lang.Thread.State: RUNNABLE

"C2 CompilerThread1" daemon prio=10 tid=0x00007fd1a033c800 nid=0x393e waiting on
condition [0x0000000000000000]
   java.lang.Thread.State: RUNNABLE

"C2 CompilerThread0" daemon prio=10 tid=0x00007fd1a0339800 nid=0x393d waiting on
condition [0x0000000000000000]
   java.lang.Thread.State: RUNNABLE

"Signal Dispatcher" daemon prio=10 tid=0x00007fd1a0337800 nid=0x393c runnable
[0x0000000000000000]
   java.lang.Thread.State: RUNNABLE

"Finalizer" daemon prio=10 tid=0x00007fd1a0076000 nid=0x393b in Object.wait()
[0x00007fd177ffe000]
   java.lang.Thread.State: WAITING (on object monitor)
        at java.lang.Object.wait(Native Method)
        at java.lang.ref.ReferenceQueue.remove(ReferenceQueue.java:118)
        - locked <0x00000006bfe0c9d8> (a java.lang.ref.ReferenceQueue$Lock)
        at java.lang.ref.ReferenceQueue.remove(ReferenceQueue.java:134)
        at java.lang.ref.Finalizer$FinalizerThread.run(Finalizer.java:159)

"Reference Handler" daemon prio=10 tid=0x00007fd1a0074000 nid=0x393a in
Object.wait() [0x00007fd19c154000]
   java.lang.Thread.State: WAITING (on object monitor)
        at java.lang.Object.wait(Native Method)
        at java.lang.Object.wait(Object.java:485)
        at java.lang.ref.Reference$ReferenceHandler.run(Reference.java:116)
        - locked <0x00000006bfe0c778> (a java.lang.ref.Reference$Lock)

"VM Thread" prio=10 tid=0x00007fd1a006d800 nid=0x3939 runnable

"GC task thread#0 (ParallelGC)" prio=10 tid=0x00007fd1a001b000 nid=0x3931
runnable

"GC task thread#1 (ParallelGC)" prio=10 tid=0x00007fd1a001d000 nid=0x3932
runnable

"GC task thread#2 (ParallelGC)" prio=10 tid=0x00007fd1a001e800 nid=0x3933
runnable

"GC task thread#3 (ParallelGC)" prio=10 tid=0x00007fd1a0020800 nid=0x3934
runnable

"GC task thread#4 (ParallelGC)" prio=10 tid=0x00007fd1a0022800 nid=0x3935
runnable

"GC task thread#5 (ParallelGC)" prio=10 tid=0x00007fd1a0024000 nid=0x3936
runnable

"GC task thread#6 (ParallelGC)" prio=10 tid=0x00007fd1a0026000 nid=0x3937
runnable

"GC task thread#7 (ParallelGC)" prio=10 tid=0x00007fd1a0027800 nid=0x3938
runnable

"VM Periodic Task Thread" prio=10 tid=0x00007fd1a0351800 nid=0x3940 waiting on
condition

JNI global references: 1774
{noformat}

Maybe relates to?

{noformat}
2012/02/06 10:07:33:064 EST [WARN ][Runner - 78] HOST
perf17.mw.lab.eng.bos.redhat.com:rootProcess:c - Error sampling data:  
        org.jboss.smartfrog.loaddriver.RequestProcessingException: Could not lookup
session bean.
	at
org.jboss.smartfrog.clustering.ejb3.StatefulSBProcessorFactoryImpl$EJB3RequestProcessor.initSession(StatefulSBProcessorFactoryImpl.java:157)
	at
org.jboss.smartfrog.clustering.ejb3.StatefulSBProcessorFactoryImpl$EJB3RequestProcessor.processRequest(StatefulSBProcessorFactoryImpl.java:58)
	at
org.jboss.smartfrog.loaddriver.CompoundRequestProcessorFactoryImpl$CompoundRequestProcessor.processRequest(CompoundRequestProcessorFactoryImpl.java:51)
	at org.jboss.smartfrog.loaddriver.Runner.run(Runner.java:87)
	at java.lang.Thread.run(Thread.java:662)
Caused by: javax.naming.NamingException: Failed to create proxy [Root exception is
java.lang.RuntimeException: org.jboss.remoting3.ChannelBusyException: Too many open
outbound writes]
	at
org.jboss.ejb.client.naming.ejb.EjbNamingContext.createEjbProxy(EjbNamingContext.java:115)
	at org.jboss.ejb.client.naming.ejb.EjbNamingContext.lookup(EjbNamingContext.java:96)
	at javax.naming.InitialContext.lookup(InitialContext.java:392)
	at
org.jboss.smartfrog.clustering.ejb3.StatefulSBProcessorFactoryImpl$EJB3RequestProcessor.initSession(StatefulSBProcessorFactoryImpl.java:148)
	... 4 more
Caused by: java.lang.RuntimeException: org.jboss.remoting3.ChannelBusyException: Too many
open outbound writes
	at
org.jboss.ejb.client.remoting.RemotingConnectionEJBReceiver.openSession(RemotingConnectionEJBReceiver.java:197)
	at org.jboss.ejb.client.EJBClient.createSession(EJBClient.java:163)
	at
org.jboss.ejb.client.naming.ejb.EjbNamingContext.doCreateProxy(EjbNamingContext.java:135)
	at
org.jboss.ejb.client.naming.ejb.EjbNamingContext.createEjbProxy(EjbNamingContext.java:113)
	... 7 more
Caused by: org.jboss.remoting3.ChannelBusyException: Too many open outbound writes
	at
org.jboss.remoting3.remote.RemoteConnectionChannel.openOutboundMessage(RemoteConnectionChannel.java:108)
	at
org.jboss.remoting3.remote.RemoteConnectionChannel.writeMessage(RemoteConnectionChannel.java:293)
	at
org.jboss.ejb.client.remoting.RemotingConnectionEJBReceiver.openSession(RemotingConnectionEJBReceiver.java:195)
	... 10 more
{noformat}

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[JBoss JIRA] (AS7-3638) EJB client threads waiting at EJBClientInvocationContext.awaitResponse