0 Replies Latest reply on Sep 28, 2004 9:01 AM by david kuehner

    help with out of memory errors

    david kuehner Newbie

      I have a client who is having a lot of out of memory errors.

      This is happening when they try to access a page with a lot of data. The database select brings back about 30 megs of data and puts it into a beancollection that contains about 5000 beans (each of which contains beancollections of another type). The output uses struts but only 20 of these beans are sent to the struts jsp processor so that isn't where the out of memory error occurs. I suspect it is happening when I read in the data initially. Unfortunately the client is not local so I can't debug.

      Is 30 megs of data in a beancollection for a user to much for jboss to handle? Is there a limit to the amount of data allowed per session? Can anyone tell from the error what the problem is?

      Any help is very much appreciated. Thanks

      First the environment

      jboss-3.0.4_tomcat-4.1.12
      j2sdkee1.3.1
      j2sdk1.4.1_01
      jakarta-struts-1.1-b2
      oracle 8

      Second the error

      javax.servlet.ServletException: Servlet execution threw an exception
      at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:269)
      at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:193)
      at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:260)
      at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:643)
      at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:480)
      at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995)
      at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
      at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:643)
      at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:527)
      at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:641)
      at org.apache.catalina.valves.CertificatesValve.invoke(CertificatesValve.java:246)
      at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:641)
      at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:480)
      at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995)
      at org.apache.catalina.core.StandardContext.invoke(StandardContext.java:2396)
      at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:180)
      at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:643)
      at org.apache.catalina.valves.ErrorDispatcherValve.invoke(ErrorDispatcherValve.java:170)
      at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:641)
      at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:172)
      at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:641)
      at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:469)
      at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:641)
      at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:480)
      at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995)
      at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:174)
      at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:643)
      at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:480)
      at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995)
      at org.apache.catalina.connector.http.HttpProcessor.process(HttpProcessor.java:1040)
      at org.apache.catalina.connector.http.HttpProcessor.run(HttpProcessor.java:1151)
      at java.lang.Thread.run(Thread.java:536)
      2004-09-27 09:04:15,939 ERROR [org.jboss.web.localhost.Engine] ----- Root Cause -----
      java.lang.OutOfMemoryError