Hi, I am trying to develop a Simulator which receives huge records from client. After sometime it throws following exception.
Exception in thread "SIP-Server" java.lang.OutOfMemoryError: Java heap space Exception in thread "Servant0" - Does dumpme file exists ::false - Does dumpsa existsC:\TestSim\ESPPServer\dist\tomcat\bin\dumpsa at java.net.PlainDatagramSocketImpl.receive0(Native Method) at java.net.PlainDatagramSocketImpl.receive(PlainDatagramSocketImpl.java :136) at java.net.DatagramSocket.receive(DatagramSocket.java:712) at com.cablelabs.espp.sip.SIPServer.run(SIPServer.java:138) at java.lang.Thread.run(Thread.java:595) java.lang.OutOfMemoryError: Java heap space at java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject .addConditionWaiter(AbstractQueuedSynchronizer.java:1657) Exception in thread "BatchProcess" at java.util.concurrent.locks.AbstractQu euedSynchronizer$ConditionObject.awaitNanos(AbstractQueuedSynchronizer.java:1870 ) at java.util.concurrent.LinkedBlockingQueue.poll(LinkedBlockingQueue.jav a:396) java.lang.OutOfMemoryError: Java heap space at java.lang.StringBuilder.toString(StringBuilder.java:431) at com.sun.xml.bind.v2.model.impl.RuntimeBuiltinLeafInfoImpl$1.parse(Run timeBuiltinLeafInfoImpl.java:161) at com.sun.xml.bind.v2.model.impl.RuntimeBuiltinLeafInfoImpl$1.parse(Run timeBuiltinLeafInfoImpl.java:171) at com.sun.xml.bind.v2.runtime.reflect.TransducedAccessor$CompositeTrans ducedAccessorImpl.parse(TransducedAccessor.java:205) at com.sun.xml.bind.v2.runtime.unmarshaller.LeafPropertyLoader.text(Leaf PropertyLoader.java:25) at com.sun.xml.bind.v2.runtime.unmarshaller.UnmarshallingContext.text(Un marshallingContext.java:415) Assuming it could be due to low RAM size I specified the max and min JVM memory size with the -Xms and -Xmx parameter. But it did help me. Also after removing the processing of the records into memory, the above exception changed to something as follows: Apr 10, 2009 12:28:57 PM org.apache.coyote.http11.Http11BaseProtocol pause INFO: Pausing Coyote HTTP/1.1 on http-8080 Apr 10, 2009 12:28:57 PM org.apache.coyote.http11.Http11BaseProtocol pause INFO: Pausing Coyote HTTP/1.1 on http-8443 Apr 10, 2009 12:28:57 PM org.apache.catalina.connector.Connector pause SEVERE: Protocol handler pause failed java.net.UnknownHostException: ESPP-Simulator-1.cablelabs.com: ESPP-Simulator-1.cablelabs.com at java.net.InetAddress.getLocalHost(InetAddress.java:1353) at org.apache.jk.common.ChannelSocket.unLockSocket(ChannelSocket.java:490) at org.apache.jk.common.ChannelSocket.pause(ChannelSocket.java:289) at org.apache.jk.server.JkMain.pause(JkMain.java:681) at org.apache.jk.server.JkCoyoteHandler.pause(JkCoyoteHandler.java:163) at org.apache.catalina.connector.Connector.pause(Connector.java:1032) at org.apache.catalina.core.StandardService.stop(StandardService.java:489) at org.apache.catalina.core.StandardServer.stop(StandardServer.java:734) at org.apache.catalina.startup.Catalina.stop(Catalina.java:602) at org.apache.catalina.startup.Catalina.start(Catalina.java:577) 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 org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:295) at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:433) Apr 10, 2009 12:28:58 PM org.apache.catalina.core.StandardService stop INFO: Stopping service Catalina I don't have any idea at this point of time how to solve this. Any help will be appreciated.