[jboss-user] [JBoss Remoting] - Out of Memory Error with ConcurrentReaderHashMap on Jboss 5.1.0
Anil Mathew
do-not-reply at jboss.com
Wed Sep 14 20:20:42 EDT 2011
Anil Mathew [http://community.jboss.org/people/amathewjboss1] created the discussion
"Out of Memory Error with ConcurrentReaderHashMap on Jboss 5.1.0"
To view the discussion, visit: http://community.jboss.org/message/626575#626575
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Hi,
We are running on JBoss 5.1 / JDK 1.6 on Linux servers. During very high load we are seeing Out of Memory Error and it seems like related to the JBoss remoting.
We took a heap dump and the Memory Analyzer shows the below instance is taking 25% of the memory:
One instance of *"org.jboss.mx.server.MBeanServerImpl"* loaded by *"org.jboss.classloader.spi.base.BaseClassLoader @ 0x415b2fc8"* occupies *65,055,032 (24.64%)* bytes. The memory is accumulated in one instance of *"EDU.oswego.cs.dl.util.concurrent.ConcurrentReaderHashMap$Entry[]"* loaded by *"org.jboss.bootstrap.NoAnnotationURLClassLoader @ 0x42f8ba78"*.
The details which is pointing ot the JBoss remoting classes:
Class Name Shallow Heap Retained Heap
1. EDU.oswego.cs.dl.util.concurrent.ConcurrentReaderHashMap$Entry[2048] Shallow Heap => 8,208 Retained Heap => 45,693,888
EDU.oswego.cs.dl.util.concurrent.ConcurrentReaderHashMap Shallow Heap => 56 Retained Heap => 45,761,640
EDU.oswego.cs.dl.util.concurrent.ConcurrentReaderHashMap$Entry Shallow Heap => 24 Retained Heap => 45,761,688
EDU.oswego.cs.dl.util.concurrent.ConcurrentReaderHashMap$Entry[64] Shallow Heap => 272 Retained Heap => 64,584,776
EDU.oswego.cs.dl.util.concurrent.ConcurrentReaderHashMap Shallow Heap => 56 Retained Heap => 64,621,408
org.jboss.mx.server.registry.BasicMBeanRegistry Shallow Heap => 48 Retained Heap => 64,621,680
org.jboss.mx.server.MBeanServerImpl Shallow Heap => 24 Retained Heap => 65,055,032
com.arjuna.ats.internal.jbossatx.agent.LocalJBossAgentImpl
java.lang.Thread @ 0x42135bb8 Signal Dispatcher Native Stack, Thread
org.jboss.invocation.pooled.server.PooledInvokerHA
org.jboss.invocation.pooled.server.PooledInvoker
org.jboss.remoting.transport.bisocket.BisocketServerInvoker
org.jboss.remoting.transport.socket.SocketServerInvoker
Any thoughts on this please?
Thanks
Anil Mathew
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