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 -------------------------------------------------------------- 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 -------------------------------------------------------------- Reply to this message by going to Community [http://community.jboss.org/message/626575#626575] Start a new discussion in JBoss Remoting at Community [http://community.jboss.org/choose-container!input.jspa?contentType=1&containerType=14&container=2050]
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