Java heap problem

Hi.
I have a question about objects in session scope.
I have created an object which holds a grid (a matrix of 2046 elements of HtmlnputText). At the beginning everything works ok, but later when several users create this matrix populating from database several times I get a java heap error. Reading several documents I think the object created are never released from memory so I don't know how to focus this stuff.
I have changed the scope of the object to resquest and the behaviour is the same..
Any comments about this?
thanks
PD: I use tomcat 6.0.x

Hi,
thanks both for comments.
I have no access to JVM, so I can't change it.
About the logic I think the problem is the GC is not working, I mean. when I get the recordset from database I make something like this:
Grid grid = new Grid(myData);
myData is an object populated from the recordset and I have defined the beans in request scope (not in session scope).
so everytime I make this, I lose the reference for the old Grid but I think this remains in memory so, when the application is running for some time it collapse and I get a java heap memory error. I'm not sure but I think that is the behaviour. Am I wrong?
Anyway I'll try with jmeter.
Thanks
greetings

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With large number of Objects in ArrayList ( approx 70000),By itself that isn't that big. If each object was 1000 bytes then that would only be 70 meg.
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You posted your code but however you did it is wrong and you need to use the forum correctly using code tags to post the code so it is readable.

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user972966 wrote:
There are two tables (tableA, tableB) in two different databases. They both have almost same schema/structure. There is mapping between tables on their columns.
I need to develop a Java application to compare data value between these two tables for a time frame (for example one day) and find missing records or mismatch data.
The volume of data, even for one day, is huge; almost 70M, 100M. Do you mean this many records? or this many MB. either way they are not that big for Java. If you have collections of up to 2 billion entries, you won't have a problem.
>
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>
This method works for small volume, but for large one I get that exceptionIs there any reason you cannot divide the problem so you can process a small volume at a time?

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     at com.evermind.server.ejb.interceptor.system.SetContextActionInterceptor.invoke(SetContextActionInterceptor.java:44)
     at com.evermind.server.ejb.interceptor.InvocationContextImpl.proceed(InvocationContextImpl.java:119)
     at com.evermind.server.ejb.interceptor.system.TxBeanManagedInterceptor.invoke(TxBeanManagedInterceptor.java:53)
     at com.evermind.server.ejb.interceptor.InvocationContextImpl.proceed(InvocationContextImpl.java:119)
     at com.evermind.server.ejb.InvocationContextPool.invoke(InvocationContextPool.java:55)
     at com.evermind.server.ejb.StatelessSessionEJBObject.OC4J_invokeMethod(StatelessSessionEJBObject.java:87)
     at com.evermind.server.ejb.StatelessSessionEJBHome.invokeTimer(StatelessSessionEJBHome.java:38)
     at com.evermind.server.ejb.EJBContainer.invokeTimer(EJBContainer.java:1714)
     at oracle.ias.container.scheduler.TimerTask.runBeanTimer(TimerTask.java:106)
     at oracle.ias.container.scheduler.TimerTask.run(TimerTask.java:220)
     at com.evermind.util.ReleasableResourcePooledExecutor$MyWorker.run(ReleasableResourcePooledExecutor.java:303)
     at java.lang.Thread.run(Thread.java:595)
javax.ejb.TransactionRolledbackLocalException: java.lang.NullPointerException; nested exception is: java.lang.NullPointerException
     at com.evermind.server.ejb.EJBUtils.getLocalUserException(EJBUtils.java:309)
     at com.evermind.server.ejb.interceptor.system.AbstractTxInterceptor.convertAndHandleMethodException(AbstractTxInterceptor.java:73)
     at com.evermind.server.ejb.interceptor.system.TxBeanManagedInterceptor.invoke(TxBeanManagedInterceptor.java:55)
     at com.evermind.server.ejb.interceptor.InvocationContextImpl.proceed(InvocationContextImpl.java:119)
     at com.evermind.server.ejb.InvocationContextPool.invoke(InvocationContextPool.java:55)
     at com.evermind.server.ejb.StatelessSessionEJBObject.OC4J_invokeMethod(StatelessSessionEJBObject.java:87)
     at com.evermind.server.ejb.StatelessSessionEJBHome.invokeTimer(StatelessSessionEJBHome.java:38)
     at com.evermind.server.ejb.EJBContainer.invokeTimer(EJBContainer.java:1714)
     at oracle.ias.container.scheduler.TimerTask.runBeanTimer(TimerTask.java:106)
     at oracle.ias.container.scheduler.TimerTask.run(TimerTask.java:220)
     at com.evermind.util.ReleasableResourcePooledExecutor$MyWorker.run(ReleasableResourcePooledExecutor.java:303)
     at java.lang.Thread.run(Thread.java:595)
Caused by: java.lang.NullPointerException
     at java.util.ListResourceBundle.handleGetObject(ListResourceBundle.java:107)
     at java.util.ResourceBundle.getObject(ResourceBundle.java:319)
     at java.util.ResourceBundle.getString(ResourceBundle.java:285)
     at java.util.logging.Formatter.formatMessage(Formatter.java:108)
     at oracle.j2ee.util.TraceLogFormatter.format(TraceLogger.java:124)
     at oracle.j2ee.util.TraceLogger$TraceLoggerHandler.publish(TraceLogger.java:105)
     at java.util.logging.Logger.log(Logger.java:428)
     at java.util.logging.Logger.doLog(Logger.java:450)
     at java.util.logging.Logger.log(Logger.java:539)
     at oracle.ias.container.timer.TimerEntry.readObjFromBytes(TimerEntry.java:308)
     at oracle.ias.container.timer.TimerEntry.getInfo(TimerEntry.java:107)
     at oracle.ias.container.timer.Timer.getInfo(Timer.java:367)
     at oracle.ias.container.timer.EJBTimerImpl.getInfo(EJBTimerImpl.java:89)
     at com.finantix.foundation.integration.ejbtimer.EJBTimerServiceExecutorBean.ejbTimeout(EJBTimerServiceExecutorBean.java:42)
     at com.evermind.server.ejb.interceptor.joinpoint.EJBTimeoutJoinPoint.invoke(EJBTimeoutJoinPoint.java:20)
     at com.evermind.server.ejb.interceptor.InvocationContextImpl.proceed(InvocationContextImpl.java:119)
     at com.evermind.server.ejb.interceptor.system.DMSInterceptor.invoke(DMSInterceptor.java:52)
     at com.evermind.server.ejb.interceptor.InvocationContextImpl.proceed(InvocationContextImpl.java:119)
     at com.evermind.server.ejb.interceptor.system.SetContextActionInterceptor.invoke(SetContextActionInterceptor.java:44)
     at com.evermind.server.ejb.interceptor.InvocationContextImpl.proceed(InvocationContextImpl.java:119)
     at com.evermind.server.ejb.interceptor.system.TxBeanManagedInterceptor.invoke(TxBeanManagedInterceptor.java:53)
     ... 9 more
Any idea?
Thx Auro

Large Report Errors out with Java Heap Space in EBS 12.0.6

When running custom or Standard BI report that have a huge data , we get a following error in EBS
[UNEXPECTED] [156627:RT4605044] java.lang.OutOfMemoryError: Java heap space
at java.lang.AbstractStringBuilder.<init>(AbstractStringBuilder.java:45)
at java.lang.StringBuffer.<init>(StringBuffer.java:91)
at oracle.apps.xdo.template.fo.FOHandler.init(FOHandler.java:161)
at oracle.apps.xdo.template.fo.FOProcessingEngine.process(FOProcessingEngine.java:335)
at oracle.apps.xdo.template.FOProcessor.generate(FOProcessor.java:1045)
at oracle.apps.xdo.oa.schema.server.TemplateHelper.runProcessTemplate(TemplateHelper.java:5926)
at oracle.apps.xdo.oa.schema.server.TemplateHelper.processTemplate(TemplateHelper.java:3458)
at oracle.apps.xdo.oa.schema.server.TemplateHelper.processTemplate(TemplateHelper.java:3547)
at oracle.apps.fnd.cp.opp.XMLPublisherProcessor.process(XMLPublisherProcessor.java:259)
at oracle.apps.fnd.cp.opp.OPPRequestThread.run(OPPRequestThread.java:172)
We have tried the follwing workaroud mentioned in the docoment 737311.1
A)
1)update FND_CP_SERVICES set DEVELOPER_PARAMETERS =
'J:oracle.apps.fnd.cp.gsf.GSMServiceController:-mx5120m'
where SERVICE_ID = (select MANAGER_TYPE from FND_CONCURRENT_QUEUES
where CONCURRENT_QUEUE_NAME = 'FNDCPOPP');
2)As XML Publisher Administrator navigate to Administration->Configuration.
Under Temporary Directory pick a temporary file location on your concurrent processing node. This should be at least 5GB or 20x larger than largest XML data file you generate
Under FO Processing, set:
Use XML Publisher's XSLT processor set to True
Enable scalable feature of XSLT processor set to False (see #4 below),
Enable XSLT runtime optimization set to True
3)We also have tried to to apply the workaround mentioned in the document 747750.1
In to Concurrent -> Program -> Define, in the 'Executable' group, there is a field named 'Options'.
Enter the value '-ms1024m -mx1024m' as the value for this field.
None of these seem to have worked.
Also refered to the the previous forum entries on these. But did not find anything specific to EBS. Most of them were related to Standalone installations.
CAn anyone help me.
Dhaval K

hi gurus
The problem has sovled.I supplyed the wrong file for the rawfile.conf,everything was fine after I provided the corrent one.
Thanks for your time.

Java heap space error occured during message mapping of FILE to IDOC

hello Friends,
I am trying to do the message mapping for File to Idoc scenario.
Idoc which I am using is HRMD_A.HRMD_A06 and infotype which I want to update is 14. I am trying to map the message type which I hav created for infotype 14 with the IDOC
Its very simple scenerio but every time I try to save the mapping before activating it I get an error:
Java heap space
Internal problem occurred (INTERNAL_PROBLEM)
Java heap space.
I am not able to figure out what possibly is the problem wheather its from my end or the BASIS end.
Kindly help.
Regards,
Lokesh

As the server probably survives (you restart your Integration Builder and can probably connect immediately), the problem will be on your side (client). Did you add one or more large xml-test-instances to the mapping ? If yes, delete them, because they lower the performance and can make problems. If not, then this is a strange problem. Even if the Idoc structure is complex, the mapping object itself cannot be that large.Is this problem only with this one mapping ?
CSY
Edited by: Christian Sy on Mar 9, 2010 6:26 AM

10Mb .swf compilation - OutOfMemoryError: Java heap space...

When I try to compile my 10Mb .swf with the "-Xmx1024m" setting in pfi.bat I getting:
Exception in thread "main" java.lang.OutOfMemoryError: Java heap space
      at java.util.Arrays.copyOf(Unknown Source)
      at java.io.ByteArrayOutputStream.write(Unknown Source)
      at java.io.OutputStream.write(Unknown Source)
      at adobe.abc.GlobalOptimizer.emitAbc(GlobalOptimizer.java:2670)
      at adobe.abc.GlobalOptimizer.emit(GlobalOptimizer.java:2594)
      at adobe.abc.LLVMEmitter.optimizeABCs(LLVMEmitter.java:320)
      at adobe.abc.LLVMEmitter.generateBitcode(LLVMEmitter.java:172)
      at com.adobe.air.ipa.AOTCompiler.convertAbcToLlvmBitcode(AOTCompiler.java:329)
      at com.adobe.air.ipa.AOTCompiler.GenerateMacBinary(AOTCompiler.java:600)
      at com.adobe.air.ipa.IPAOutputStream.compileRootSwf(IPAOutputStream.java:196)
      at com.adobe.air.ipa.IPAOutputStream.finalizeSig(IPAOutputStream.java:366)
      at com.adobe.air.ADTPackager.createPackage(ADTPackager.java:65)
      at com.adobe.air.ipa.IPAPackager.createPackage(IPAPackager.java:165)
      at com.adobe.air.ADTEntrypoint.parseArgsAndGo(ADTEntrypoint.java:132)
      at com.adobe.air.ipa.PFI.parseArgsAndGo(PFI.java:152)
      at com.adobe.air.ADTEntrypoint.run(ADTEntrypoint.java:68)
      at com.adobe.air.ipa.PFI.main(PFI.java:112)
When I increase try jave heap from "-Xmx1024" to "-Xmx1200" or more memory for jave heap I stable getting:
# A fatal error has been detected by the Java Runtime Environment:
# Internal Error (0xe06d7363), pid=3796, tid=3048
# JRE version: 6.0_16-b01
# Java VM: Java HotSpot(TM) Client VM (14.2-b01 mixed mode windows-x86 )
# Problematic frame:
# C [kernel32.dll+0x12afb]
# An error report file with more information is saved as:
# C:\svn\xxx\components\xxx\output\hs_err_pid3796.log
# If you would like to submit a bug report, please visit:
#   http://java.sun.com/webapps/bugreport/crash.jsp
# The crash happened outside the Java Virtual Machine in native code.
# See problematic frame for where to report the bug.
Compilation process looks like this:
Have anybody idea how can I compile my .swf? Thanks.

Hi Joseph,
I'm having the same problem with CWLMS 4.0.1. But I didn't find this file heap.properties in the
/opt/CSCOpx/MDc/tomcat/webapps/rme/WEB-INF/classes/com/cisco/nm/rmeng/cli/framework/
Do you know where I customize this parameter in that version?
Thanks,
Patricia Oliveira

OutOfMemoryError: Java heap space

Hi There
i am facing som problem in my one of concurrent manager (Output Post Processor) and its showing value of Actual 2 and Target 3 and getting some exception in one of process's log which as follwos.
Exception in thread "PacketReceiver for [172.20.2.11:15028]" java.lang.OutOfMemoryError: Java heap space
     at java.net.SocketInputStream.read(SocketInputStream.java:181)
     at oracle.ias.cache.group.HttpHandler.read(Unknown Source)
     at oracle.ias.cache.group.StreamHandler.read(Unknown Source)
     at oracle.ias.cache.group.EndPoint.read(Unknown Source)
     at oracle.ias.cache.group.PacketReceiver.run(Unknown Source)
Exception in thread "OPPAQMON:206703" java.lang.OutOfMemoryError: Java heap space
     at oracle.jdbc.driver.T4CMAREngine.unmarshalDALC(T4CMAREngine.java:2125)
     at oracle.jdbc.driver.T4C8TTIrxh.unmarshalV10(T4C8TTIrxh.java:119)
     at oracle.jdbc.driver.T4CTTIiov.unmarshalV10(T4CTTIiov.java:188)
     at oracle.jdbc.driver.T4C8Oall.receive(T4C8Oall.java:614)
     at oracle.jdbc.driver.T4CCallableStatement.doOall8(T4CCallableStatement.java:191)
     at oracle.jdbc.driver.T4CCallableStatement.executeForRows(T4CCallableStatement.java:950)
     at oracle.jdbc.driver.OracleStatement.doExecuteWithTimeout(OracleStatement.java:1225)
     at oracle.jdbc.driver.OraclePreparedStatement.executeInternal(OraclePreparedStatement.java:3387)
     at oracle.jdbc.driver.OraclePreparedStatement.execute(OraclePreparedStatement.java:3488)
     at oracle.jdbc.driver.OracleCallableStatement.execute(OracleCallableStatement.java:3857)
     at oracle.jdbc.driver.OraclePreparedStatementWrapper.execute(OraclePreparedStatementWrapper.java:1374)
     at oracle.apps.fnd.cp.opp.OPPAQMonitor.waitForMessage(OPPAQMonitor.java:429)
     at oracle.apps.fnd.cp.opp.OPPAQMonitor.run(OPPAQMonitor.java:114)
     at java.lang.Thread.run(Thread.java:619)
please help me out how to resolved this issue.
Application: Oracle Ebs-R12(12.1.2)
DB: 11.1.0.7
OS: linux 5*86x64
Waiting for valuable response.
Regards,
Mohsin

Hi Hussein
I have a question on this OPP java heap space .
Let say I have 10 Process allocated for OPP and heap space allocated to OPP is 1024 MB.
Q 1 . Let say 5 requests are running by 5 OPP processes.. Then how this heap memory allocated ?
is it something like heap space / number of running requests by OPP (1024/5 in this case )
Q 2. Let say i have submitted 2 requests . One request needs 800 MB of heap space (based on the past runs )
And Second one requires 500 MB of heap space .
In this we will get java out of memory error ? Am I correct ?
Q 3 . Will all requests after submitted after test case 2 ( Q 2) encounter out of memory errors Since the heap space was exhausted until OPP bounced or full /GC Completed/
Please Correct me if I am wrong
--Thanks In advance.

Trouble with "java.lang.OutOfMemoryError: Java heap space"

Hello,
I use a Java-based modeling tool that very few out there are probably familiar with. This tool allows me to run models (program) from within the development environment, to create Applets or create jar files that can be executed in a stand-alone fashion.
I am using a database on my local harddrive to read in some data using JDBC, so am not using the Applet option with certificates. The development environment is expensive, so can't be distributed. That leaves the stand-alone option.
The model (program) I've written runs perfectly fine in the development environment and, previously, has worked fine as a stand-alone program. However, the stand-alone option isn't working anymore, because I keep getting this error.
I am not much of a Java programmer; I'm learning as I go along. If anyone can help me solve this, I'll be most appreciative
From my cmd prompt:
C:\Documents and Settings\072\Desktop\TA\for\for Applet Files>cd "C:\D
ocuments and Settings\072\Desktop\TA\for\for Applet Files"
C:\Documents and Settings\072\Desktop\TA\for\for Applet Files>java -cl
asspath enterprise_library.jar;business_graphics_library.jar;for.jar;xjanylog
ic5engine.jar for/Main$Simulation
Started...
AnyLogic simulation engine has started [$Id: Engine.java,v 1.134 2004/12/03 08:4
9:39 basil Exp $]
java.lang.OutOfMemoryError: Java heap space
setting error: Exception during root.courseQueue-1556 startup: java.lang.OutOfMe
moryError: Java heap space
thread = Thread[Model Creation Thread,5,main]
engine = com.xj.anylogic.Engine@1099257
Exception in thread "Image Fetcher 0" java.lang.OutOfMemoryError: Java heap spac
e
java.lang.OutOfMemoryError: Java heap space
setting error: Exception during startup: java.lang.OutOfMemoryError: Java heap s
pace
thread = Thread[Model Creation Thread,5,main]
engine = com.xj.anylogic.Engine@1099257
java.lang.OutOfMemoryError: Java heap space
setting error: Exception in statechart 'root.courseExit-0.inputProcessor' entry
actions: java.lang.OutOfMemoryError: Java heap space
thread = Thread[AnyLogic main thread,5,main]
engine = com.xj.anylogic.Engine@1099257
java.lang.OutOfMemoryError: Java heap space
setting error: Exception in statechart 'root.courseDelay-0.inputProcessor' entry
actions: java.lang.OutOfMemoryError: Java heap space
thread = Thread[AnyLogic main thread,5,main]
engine = com.xj.anylogic.Engine@1099257
java.lang.OutOfMemoryError: Java heap space
setting error: Exception in statechart 'root.courseDelay-1.inputProcessor' entry
actions: java.lang.OutOfMemoryError: Java heap space
thread = Thread[AnyLogic main thread,5,main]Exception in thread "AWT-EventQueu
e-0"
java.lang.OutOfMemoryError: Java heap space
engine = com.xj.anylogic.Engine@1099257

Hi I am ancountering the same problem with the 'heap space'.
Is there any way I can find out what it is set to for my system? I dont believe its 32Mb and dont want to increase it randomly to too large a size if theres no need for it.
Thanks,
Bobby

Java heap problem

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