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  1. EJB Client Library (AS7+)
  2. EJBCLIENT-156

Calling remote asynchronous void method causes OutOfMemoryError in direct buffer memory

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    • Icon: Bug Bug
    • Resolution: Done
    • Icon: Major Major
    • 2.1.6.Final
    • 2.1.4.Final
    • None
    • Hide
      1. Build attached EJB and its client. 
        unzip async-void-ejb.zip
cd async-void-ejb
mvn clean package dependency:copy-dependencies
      2. Add an ApplicationRealm user (jboss/jbossjboss#2) to a standalone server.
      3. Deploy target/async-void-ejb-1.0.0.jar to the standalone server.
      4. Run the test client. 
        java -cp target/dependency/\*:target/test-classes:target/classes -Xms100m -Xmx100m TestMainDBufferLeak
      Show
      Build attached EJB and its client. unzip async-void-ejb.zip cd async-void-ejb mvn clean package dependency:copy-dependencies Add an ApplicationRealm user ( jboss / jbossjboss#2 ) to a standalone server. Deploy target/async-void-ejb-1.0.0.jar to the standalone server. Run the test client. java -cp target/dependency/\*:target/test-classes:target/classes -Xms100m -Xmx100m TestMainDBufferLeak
    • Workaround Exists
    • Hide

      Add command line option -Djboss.remoting.pooled-buffers=false. Though some reported a big performance impact.

      Show
      Add command line option -Djboss.remoting.pooled-buffers=false . Though some reported a big performance impact.

      OOME in direct buffer happens when a remote client calls an asynchronous method which has return type void many times.

      2016-04-20 17:10:23,140 INFO  (Thread-28) [TestMainDBufferLeak] invoked=599,000, total=98,590,724, used=98,590,724, count=49 
2016-04-20 17:10:23,766 ERROR (Remoting "config-based-ejb-client-endpoint" I/O-1) [org.xnio.listener] XNIO001007: A channel event listener threw an exc
eption 
java.lang.OutOfMemoryError: Direct buffer memory
        at java.nio.Bits.reserveMemory(Bits.java:693)
        at java.nio.DirectByteBuffer.<init>(DirectByteBuffer.java:123)
        at java.nio.ByteBuffer.allocateDirect(ByteBuffer.java:311)
        at org.xnio.BufferAllocator$2.allocate(BufferAllocator.java:57)
        at org.xnio.BufferAllocator$2.allocate(BufferAllocator.java:55)
        at org.xnio.ByteBufferSlicePool.allocate(ByteBufferSlicePool.java:146)
        at org.jboss.remoting3.remote.RemoteConnection.allocate(RemoteConnection.java:77)
        at org.jboss.remoting3.remote.RemoteReadListener.handleEvent(RemoteReadListener.java:290)
        at org.jboss.remoting3.remote.RemoteReadListener.handleEvent(RemoteReadListener.java:46)
        at org.xnio.ChannelListeners.invokeChannelListener(ChannelListeners.java:92)
        at org.xnio.channels.TranslatingSuspendableChannel.handleReadable(TranslatingSuspendableChannel.java:199)
        at org.xnio.channels.TranslatingSuspendableChannel$1.handleEvent(TranslatingSuspendableChannel.java:113)
        at org.xnio.ChannelListeners.invokeChannelListener(ChannelListeners.java:92)
        at org.xnio.ChannelListeners$DelegatingChannelListener.handleEvent(ChannelListeners.java:1092)
        at org.xnio.ChannelListeners.invokeChannelListener(ChannelListeners.java:92)
        at org.xnio.conduits.ReadReadyHandler$ChannelListenerHandler.readReady(ReadReadyHandler.java:66)
        at org.xnio.nio.NioSocketConduit.handleReady(NioSocketConduit.java:88)
        at org.xnio.nio.WorkerThread.run(WorkerThread.java:559)

        1. async-void-ejb.zip
          6 kB

              dlloyd@redhat.com David Lloyd
              rhn-support-onagano Osamu Nagano
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                Created:
                Updated:
                Resolved: