The data I was looking for is "java.lang.OutOfMemoryError: Java heap space"
I trust the GC to do its work properly and I sounds like you need to chase a memory "leak".
A profiler like yourkit should help you track objects that are not GC'd on explicit calls to the GC but it's likely that you will need a developer familiar with the application.
-Alexis
On 12 janv. 2010, at 12:36, glassfish_at_javadesktop.org wrote:
> Below is the setting that suggested by Sun Engineer during their visit to customer site in the early stage. FYI, the suggested configuration still didn't help and their already collect the thread dump during that time. But as I know they still didn't come back yet with the outcome.
>
> 1. Change the compiler from "client" to "server"
> 2. Added Initial heap size to "1024M" (-Xms settting)
> 3. Added parallel garbage collector setting -XX:+UseParallelOldGC
> 4. Added Concurrent Garbage Collector setting -XX:+UseConcMarkSweepGC
>
> After that our engineer change the jvm setting to what I've given earlier and the OOM error don't show up but the system still hang till today.
>
> This is the OOM message during that time.
>
> [#|2009-11-10T14:35:43.738+0800|SEVERE|sun-appserver2.1|javax.enterprise.system.container.web|_ThreadID=13;_ThreadName=httpSSLWorkerThread-8080-0;_RequestID=d4766bf0-6703-4a2e-8ddf-9ec11185c4ea;|ApplicationDispatcher[/sppekl] PWC1231: Servlet.service() for servlet jsp threw exception
> java.lang.OutOfMemoryError: Java heap space
> at java.lang.Class.getDeclaredFields0(Native Method)
> at java.lang.Class.privateGetDeclaredFields(Class.java:2291)
> at java.lang.Class.getDeclaredField(Class.java:1880)
> at com.thoughtworks.xstream.mapper.AttributeMapper.getField(AttributeMapper.java:120)
> at com.thoughtworks.xstream.mapper.AttributeMapper.getConverterFromAttribute(AttributeMapper.java:101)
> at com.thoughtworks.xstream.mapper.MapperWrapper.getConverterFromAttribute(MapperWrapper.java:114)
> at com.thoughtworks.xstream.mapper.MapperWrapper.getConverterFromAttribute(MapperWrapper.java:114)
> at com.thoughtworks.xstream.mapper.MapperWrapper.getConverterFromAttribute(MapperWrapper.java:114)
> at com.thoughtworks.xstream.mapper.MapperWrapper.getConverterFromAttribute(MapperWrapper.java:114)
> at com.thoughtworks.xstream.mapper.MapperWrapper.getConverterFromAttribute(MapperWrapper.java:114)
> at com.thoughtworks.xstream.mapper.MapperWrapper.getConverterFromAttribute(MapperWrapper.java:114)
> at com.thoughtworks.xstream.mapper.MapperWrapper.getConverterFromAttribute(MapperWrapper.java:114)
> at com.thoughtworks.xstream.mapper.MapperWrapper.getConverterFromAttribute(MapperWrapper.java:114)
> at com.thoughtworks.xstream.mapper.MapperWrapper.getConverterFromAttribute(MapperWrapper.java:114)
> at com.thoughtworks.xstream.converters.reflection.AbstractReflectionConverter.doUnmarshal(AbstractReflectionConverter.java:145)
> at com.thoughtworks.xstream.converters.reflection.AbstractReflectionConverter.unmarshal(AbstractReflectionConverter.java:125)
> at com.thoughtworks.xstream.core.TreeUnmarshaller.convert(TreeUnmarshaller.java:56)
> at com.thoughtworks.xstream.core.AbstractReferenceUnmarshaller.convert(AbstractReferenceUnmarshaller.java:45)
> at com.thoughtworks.xstream.core.TreeUnmarshaller.convertAnother(TreeUnmarshaller.java:46)
> at com.thoughtworks.xstream.converters.reflection.AbstractReflectionConverter.doUnmarshal(AbstractReflectionConverter.java:195)
> at com.thoughtworks.xstream.converters.reflection.AbstractReflectionConverter.unmarshal(AbstractReflectionConverter.java:125)
> at com.thoughtworks.xstream.core.TreeUnmarshaller.convert(TreeUnmarshaller.java:56)
> at com.thoughtworks.xstream.core.AbstractReferenceUnmarshaller.convert(AbstractReferenceUnmarshaller.java:45)
> at com.thoughtworks.xstream.core.TreeUnmarshaller.convertAnother(TreeUnmarshaller.java:46)
> at com.thoughtworks.xstream.converters.reflection.AbstractReflectionConverter.doUnmarshal(AbstractReflectionConverter.java:195)
> at com.thoughtworks.xstream.converters.reflection.AbstractReflectionConverter.unmarshal(AbstractReflectionConverter.java:125)
> at com.thoughtworks.xstream.core.TreeUnmarshaller.convert(TreeUnmarshaller.java:56)
> at com.thoughtworks.xstream.core.AbstractReferenceUnmarshaller.convert(AbstractReferenceUnmarshaller.java:45)
> at com.thoughtworks.xstream.core.TreeUnmarshaller.convertAnother(TreeUnmarshaller.java:46)
> at com.thoughtworks.xstream.converters.reflection.AbstractReflectionConverter.doUnmarshal(AbstractReflectionConverter.java:195)
> at com.thoughtworks.xstream.converters.reflection.AbstractReflectionConverter.unmarshal(AbstractReflectionConverter.java:125)
> at com.thoughtworks.xstream.core.TreeUnmarshaller.convert(TreeUnmarshaller.java:56)
> |#]
>
> Some warning message that I capture this evening.
>
> [#|2010-01-12T14:42:10.100+0800|WARNING|sun-appserver2.1|javax.enterprise.system.stream.err|_ThreadID=17;_ThreadName=httpSSLWorkerThread-8080-2;_RequestID=0636be83-81de-4690-be54-23a7749d99f2;|
> java.util.ConcurrentModificationException
> at java.util.HashMap$HashIterator.nextEntry(HashMap.java:793)
> at java.util.HashMap$KeyIterator.next(HashMap.java:828)
> at com.htp.filter.LoginFilter.doFilter(LoginFilter.java:98)
> at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:246)
> at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:214)
> at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:313)
> at org.apache.catalina.core.StandardContextValve.invokeInternal(StandardContextValve.java:287)
> at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:218)
> at org.apache.catalina.core.StandardPipeline.doInvoke(StandardPipeline.java:648)
> at org.apache.catalina.core.StandardPipeline.doInvoke(StandardPipeline.java:593)
> at com.sun.enterprise.web.WebPipeline.invoke(WebPipeline.java:94)
> at com.sun.enterprise.web.PESessionLockingStandardPipeline.invoke(PESessionLockingStandardPipeline.java:98)
> at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:222)
> at org.apache.catalina.core.StandardPipeline.doInvoke(StandardPipeline.java:648)
> at org.apache.catalina.core.StandardPipeline.doInvoke(StandardPipeline.java:593)
> at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:587)
> at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:1096)
> at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:166)
> at org.apache.catalina.core.StandardPipeline.doInvoke(StandardPipeline.java:648)
> at org.apache.catalina.core.StandardPipeline.doInvoke(StandardPipeline.java:593)
> at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:587)
> at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:1096)
> at org.apache.coyote.tomcat5.CoyoteAdapter.service(CoyoteAdapter.java:288)
> at com.sun.enterprise.web.connector.grizzly.DefaultProcessorTask.invokeAdapter(DefaultProcessorTask.java:647)
> at com.sun.enterprise.web.connector.grizzly.DefaultProcessorTask.doProcess(DefaultProcessorTask.java:579)
> at com.sun.enterprise.web.connector.grizzly.DefaultProcessorTask.process(DefaultProcessorTask.java:831)
> at com.sun.enterprise.web.connector.grizzly.DefaultReadTask.executeProcessorTask(DefaultReadTask.java:341)
> at com.sun.enterprise.web.connector.grizzly.DefaultReadTask.doTask(DefaultReadTask.java:263)
> at com.sun.enterprise.web.connector.grizzly.DefaultReadTask.doTask(DefaultReadTask.java:214)
> at com.sun.enterprise.web.connector.grizzly.TaskBase.run(TaskBase.java:265)
> at com.sun.enterprise.web.connector.grizzly.ssl.SSLWorkerThread.run(SSLWorkerThread.java:106)
> |#]
>
> Is there any ways to know our application is caching lots of data?
> [Message sent by forum member 'badul' (dzafarul_at_gmail.com)]
>
> http://forums.java.net/jive/thread.jspa?messageID=380280
>
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