OC4J Java Heap Size.

Hello.
I need to deploy a 150Mo war file. I set -Xmx2048m and -Xms2048m parameters in the properties of the concerned OC4J container.
My container could not be restarted ... What is wrong ?
Otherwis, when deploying the 150Mo war file, after a while, i got a 500 Error.
Very disapointing ......

A process in 32-bit Windows can only address 4 GB of RAM total. By default, Windows allocates 2 GB for the system and 2 GB for processes. There is a configuration switch to allow the use of up to 3GB for processes.
Sure you can have multiple processes using 2 or 3 GB at a time so your 8 GB isn't wasted.
See here for more details:
http://www.microsoft.com/whdc/system/platform/server/PAE/PAEmem.mspx
Oh, and this isn't a WIndows thing, it affects all 32-bit OS. Most other server OS just aren't 32-bit anymore. Plus 2 GB for a process isn't too bad. Too bad Windows can't use 2 GB per thread.
I'm not sure why you're limited to 1.5 GB exactly or where you're limited to it, but it's not like you're wasting 6.5 GB like you're putting out there.
So, what exactly are you looking for a patch for? If there is a technical issue that is a bug, file a SR with Oracle so they can fix the problem...
Sorry for the ramblings. Hard to believe I'd have 4 GB of RAM in my home PC, especially looking back at the size of my first hard drive :-D

Similar Messages

Java heap size error Work manager

Hi,
We are working with Work Manager 6.0 running on SMP 2.3 SP03.
The application was working fine, but after the data load that has happened in the UAT
System, we are getting the below error:
2014/08/08 00:48:56.142:
setImportParameters::STORAGE_REF_KEY=ET_COMPLEX_TABLE
2014/08/08 00:48:56.143:               + User=TS_MAINTMGR
2014/08/08 00:48:56.143:                 execute::::TS_MAINTMGR::before
BAPI execute: /SMERP/MM_CTMATPLANT_GET
2014/08/08 00:55:20.905:             + BackEnd=Java-1
2014/08/08 00:55:20.905:               Exception while updating complex
table 'ctpart': JavaBackEndError: JAVA EXCEPTION CAUGHT:
java.lang.OutOfMemoryError: Java heap space in
AgentryJavaComplexTableIterator::hasNext at
AgentryJavaComplexTableIterator.cpp:52
2014/08/08 00:55:21.099: + Thread=6588
2014/08/08 00:55:21.099:   + Thread Pool=Server
2014/08/08 00:55:21.099:     + WorkFunction=00000000020DEF90
2014/08/08 00:55:21.099:       + User=TS_MAINTMGR
2014/08/08 00:55:21.099:         + User=TS_MAINTMGR
2014/08/08 00:55:21.099:           Received Logout Request message 18
status changed to 'In Progress'
2014/08/08 00:55:21.105:         Logged out (but not yet cleaned up)
We tried to increase the min and max heap size from 256 / 512 to 512 /
2048 respectively in Agentry.ini, but are still getting the same error.
Please let us know if there is any other parameter which can be used to
fine tune this and get this up and running,
Thanks for the help.

Raviraj,
Are you working with Boopaln? The reason why I as He posted the same error (in the same complex table) With the same changes but just a different user shown.
If yes. please see that thread at: JAVA Heap Size Error in SAP Work Manager

Java.lang.OutOfMemoryError:class Your Java heap size might be set too high.

I am getting the below error while deploying some soa applications in WLS 10.3 on solaris platform.As a workaround,
the server instance has to be restarted everytime i make the deployments when i face this OOM situations.
usually i face this issue after first deployment onwards.
So, everytime i make the next deployment the server instance has to be restarted before that.
The server is configured with 1Gb JVM and runs on JRockit jrrt-4.0.0-1.6.0.
MEM_ARGS="-Xms1g -Xmx1g -Xgcprio:throughput -Xverbose:gc -XX:+HeapDumpOnOutO
fMemoryError -XXcompressedRefs:enable=true"
Can anybody please provide any pointers to track/solve this issue?
Log extract:
####<Oct 10, 2010 4:27:31 PM PST> <Error> <Deployer> <BOX1> <SERVER2> <[ACTIVE] ExecuteThread: '1' for queue: 'weblogic.kernel.Default (self-tuning)'> <<WLS Kernel>> <1256893524756> <BEA-149265> <Failure occurred in the execution of deployment request with ID '1256893524756' for task '3'. Error is: 'weblogic.application.ModuleException: '
weblogic.application.ModuleException:
at weblogic.servlet.internal.WebAppModule.startContexts(WebAppModule.java:1373)
at weblogic.servlet.internal.WebAppModule.start(WebAppModule.java:468)
at weblogic.application.internal.flow.ModuleStateDriver$3.next(ModuleStateDriver.java:204)
at weblogic.application.utils.StateMachineDriver.nextState(StateMachineDriver.java:37)
at weblogic.application.internal.flow.ModuleStateDriver.start(ModuleStateDriver.java:60)
at weblogic.application.internal.flow.ScopedModuleDriver.start(ScopedModuleDriver.java:201)
at weblogic.application.internal.flow.ModuleListenerInvoker.start(ModuleListenerInvoker.java:118)
at weblogic.application.internal.flow.ModuleStateDriver$3.next(ModuleStateDriver.java:205)
at weblogic.application.utils.StateMachineDriver.nextState(StateMachineDriver.java:37)
at weblogic.application.internal.flow.ModuleStateDriver.start(ModuleStateDriver.java:60)
at weblogic.application.internal.flow.StartModulesFlow.activate(StartModulesFlow.java:28)
at weblogic.application.internal.BaseDeployment$2.next(BaseDeployment.java:636)
at weblogic.application.utils.StateMachineDriver.nextState(StateMachineDriver.java:37)
at weblogic.application.internal.BaseDeployment.activate(BaseDeployment.java:212)
at weblogic.application.internal.EarDeployment.activate(EarDeployment.java:16)
at weblogic.application.internal.DeploymentStateChecker.activate(DeploymentStateChecker.java:162)
at weblogic.deploy.internal.targetserver.AppContainerInvoker.activate(AppContainerInvoker.java:79)
at weblogic.deploy.internal.targetserver.operations.AbstractOperation.activate(AbstractOperation.java:569)
at weblogic.deploy.internal.targetserver.operations.ActivateOperation.activateDeployment(ActivateOperation.java:140)
at weblogic.deploy.internal.targetserver.operations.ActivateOperation.doCommit(ActivateOperation.java:106)
at weblogic.deploy.internal.targetserver.operations.AbstractOperation.commit(AbstractOperation.java:323)
at weblogic.deploy.internal.targetserver.DeploymentManager.handleDeploymentCommit(DeploymentManager.java:820)
at weblogic.deploy.internal.targetserver.DeploymentManager.activateDeploymentList(DeploymentManager.java:1223)
at weblogic.deploy.internal.targetserver.DeploymentManager.handleCommit(DeploymentManager.java:436)
at weblogic.deploy.internal.targetserver.DeploymentServiceDispatcher.commit(DeploymentServiceDispatcher.java:164)
at weblogic.deploy.service.internal.targetserver.DeploymentReceiverCallbackDeliverer.doCommitCallback(DeploymentReceiverCallbackDeliverer.java:181)
at weblogic.deploy.service.internal.targetserver.DeploymentReceiverCallbackDeliverer.access$100(DeploymentReceiverCallbackDeliverer.java:12)
at weblogic.deploy.service.internal.targetserver.DeploymentReceiverCallbackDeliverer$2.run(DeploymentReceiverCallbackDeliverer.java:68)
at weblogic.work.SelfTuningWorkManagerImpl$WorkAdapterImpl.run(SelfTuningWorkManagerImpl.java:516)
at weblogic.work.ExecuteThread.execute(ExecuteThread.java:201)
at weblogic.work.ExecuteThread.run(ExecuteThread.java:173)
java.lang.OutOfMemoryError: class allocation, 21977184 loaded, 20M footprint in check_alloc (classalloc.c:213) 1412 bytes requested.
Java heap 1G reserved, 1G committed
Paged memory=18014398507524232K/16781304K.
Your Java heap size might be set too high.
Try to reduce the Java heap
at java.lang.ClassLoader.defineClass1(Native Method)
at java.lang.ClassLoader.defineClass(ClassLoader.java:616)
at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:124)
at weblogic.utils.classloaders.GenericClassLoader.defineClass(GenericClassLoader.java:335)
at weblogic.utils.classloaders.GenericClassLoader.findLocalClass(GenericClassLoader.java:288)
at weblogic.utils.classloaders.GenericClassLoader.findClass(GenericClassLoader.java:256)
at java.lang.ClassLoader.loadClass(ClassLoader.java:303)
at java.lang.ClassLoader.loadClass(ClassLoader.java:248)
at weblogic.utils.classloaders.GenericClassLoader.loadClass(GenericClassLoader.java:176)
at java.lang.Class.getDeclaredConstructors0(Native Method)
at java.lang.Class.privateGetDeclaredConstructors(Class.java:2389)
at java.lang.Class.getConstructor0(Class.java:2699)
at java.lang.Class.newInstance0(Class.java:326)
at java.lang.Class.newInstance(Class.java:308)
at com.sun.faces.config.ConfigureListener.configure(ConfigureListener.java:1058)
at com.sun.faces.config.ConfigureListener.configure(ConfigureListener.java:1129)
at com.sun.faces.config.ConfigureListener.configure(ConfigureListener.java:542)
at com.sun.faces.config.ConfigureListener.contextInitialized(ConfigureListener.java:435)
at weblogic.servlet.internal.EventsManager$FireContextListenerAction.run(EventsManager.java:465)
at weblogic.security.acl.internal.AuthenticatedSubject.doAs(AuthenticatedSubject.java:321)
at weblogic.security.service.SecurityManager.runAs(Unknown Source)
at weblogic.servlet.internal.EventsManager.notifyContextCreatedEvent(EventsManager.java:175)
at weblogic.servlet.internal.WebAppServletContext.preloadResources(WebAppServletContext.java:1784)
at weblogic.servlet.internal.WebAppServletContext.start(WebAppServletContext.java:2999)
at weblogic.servlet.internal.WebAppModule.startContexts(WebAppModule.java:1371)
at weblogic.servlet.internal.WebAppModule.start(WebAppModule.java:468)
at weblogic.application.internal.flow.ModuleStateDriver$3.next(ModuleStateDriver.java:204)
at weblogic.application.utils.StateMachineDriver.nextState(StateMachineDriver.java:37)
at weblogic.application.internal.flow.ModuleStateDriver.start(ModuleStateDriver.java:60)
at weblogic.application.internal.flow.ScopedModuleDriver.start(ScopedModuleDriver.java:200)
at weblogic.application.internal.flow.ModuleListenerInvoker.start(ModuleListenerInvoker.java:117)
at weblogic.application.internal.flow.ModuleStateDriver$3.next(ModuleStateDriver.java:204)
at weblogic.application.utils.StateMachineDriver.nextState(StateMachineDriver.java:37)
at weblogic.application.internal.flow.ModuleStateDriver.start(ModuleStateDriver.java:60)
at weblogic.application.internal.flow.StartModulesFlow.activate(StartModulesFlow.java:27)
at weblogic.application.internal.BaseDeployment$2.next(BaseDeployment.java:635)
at weblogic.application.utils.StateMachineDriver.nextState(StateMachineDriver.java:37)
at weblogic.application.internal.BaseDeployment.activate(BaseDeployment.java:212)
at weblogic.application.internal.EarDeployment.activate(EarDeployment.java:16)
at weblogic.application.internal.DeploymentStateChecker.activate(DeploymentStateChecker.java:162)
at weblogic.deploy.internal.targetserver.AppContainerInvoker.activate(AppContainerInvoker.java:79)
at weblogic.deploy.internal.targetserver.operations.AbstractOperation.activate(AbstractOperation.java:569)
at weblogic.deploy.internal.targetserver.operations.ActivateOperation.activateDeployment(ActivateOperation.java:140)
at weblogic.deploy.internal.targetserver.operations.ActivateOperation.doCommit(ActivateOperation.java:106)
at weblogic.deploy.internal.targetserver.operations.AbstractOperation.commit(AbstractOperation.java:323)
at weblogic.deploy.internal.targetserver.DeploymentManager.handleDeploymentCommit(DeploymentManager.java:820)
at weblogic.deploy.internal.targetserver.DeploymentManager.activateDeploymentList(DeploymentManager.java:1227)
at weblogic.deploy.internal.targetserver.DeploymentManager.handleCommit(DeploymentManager.java:436)
at weblogic.deploy.internal.targetserver.DeploymentServiceDispatcher.commit(DeploymentServiceDispatcher.java:163)
at weblogic.deploy.service.internal.targetserver.DeploymentReceiverCallbackDeliverer.doCommitCallback(DeploymentReceiverCallbackDeliverer.java:181)
at weblogic.deploy.service.internal.targetserver.DeploymentReceiverCallbackDeliverer.access$100(DeploymentReceiverCallbackDeliverer.java:12)
at weblogic.deploy.service.internal.targetserver.DeploymentReceiverCallbackDeliverer$2.run(DeploymentReceiverCallbackDeliverer.java:67)
at weblogic.work.SelfTuningWorkManagerImpl$WorkAdapterImpl.run(SelfTuningWorkManagerImpl.java:516)
at weblogic.work.ExecuteThread.execute(ExecuteThread.java:201)
at weblogic.work.ExecuteThread.run(ExecuteThread.java:173)

Its running on Solaris 10 platform.The server is configured with 1Gb JVM and JRockit jrrt-4.0.0-1.6.0.
MEM_ARGS="-Xms1g -Xmx1g -Xgcprio:throughput -Xverbose:gc -XX:+HeapDumpOnOutO
fMemoryError -XXcompressedRefs:enable=true"
Let me know if you need any more information to track this issue.

How to increase Memory and Java Heap Size for Content Server

Hi,
My content server is processing requests very slowly. Over performance is not good. I have 2 GB of RAM any idea what files I can modify to increase the Java Heap Size for the Content Server. If I increase the RAM to 4 or 6 GB where do I need to make changes for the Java Heap Size and what are the recommended values. I just have Content Server Running on the linux box. Or how do I assign more memory to the user that owns the content server install.
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You might find these interesting:
http://blogs.oracle.com/fusionecm/2008/10/how_to_-javatuning.html
http://download.oracle.com/docs/cd/E10316_01/cs/cs_doc_10/documentation/admin/performance_tuning_10en.pdf
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Kindly help me.
Regards
Ramesh E

i have used 20 threads to extract the datas
Then parallel i am starting one more thread to process the data. Means that i am starting 21st thread. In thread is throwing the error.
20 threads:
for (int i = 0; i < 20; i++) {
try{
extrThreads[i] = new Thread(this);
extrThreads.start();
}catch (Exception e) {
System.out.println(e);
21st Thread:
public void processdata()throws Exception{
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JAVA Heap Size Error in SAP Work Manager

We are getting the below error wrt Java Heap size in the SAP Work manager Application:
2014/08/08 00:48:56.142:setImportParameters::STORAGE_REF_KEY=ET_COMPLEX_TABLE
2014/08/08 00:48:56.143: + User=MAINTMGR
2014/08/08 00:48:56.143: execute::::MAINTMGR::before BAPI execute: /SMERP/MM_CTMATPLANT_GET
2014/08/08 00:55:20.905: + BackEnd=Java-1
2014/08/08 00:55:20.905: Exception while updating complex table 'ctpart': JavaBackEndError: JAVA EXCEPTION CAUGHT: java.lang.OutOfMemoryError: Java heap space in AgentryJavaComplexTableIterator::hasNext at AgentryJavaComplexTableIterator.cpp:52
2014/08/08 00:55:21.099: + Thread=6588
2014/08/08 00:55:21.099: + Thread Pool=Server
2014/08/08 00:55:21.099: + WorkFunction=00000000020DEF90
2014/08/08 00:55:21.099: + User=MAINTMGR
2014/08/08 00:55:21.099: + User=MAINTMGR
2014/08/08 00:55:21.099: Received Logout Request message 18 status changed to 'In Progress'
2014/08/08 00:55:21.105: Logged out (but not yet cleaned up)
We have tried to increase the initial and maximum heap size in the Agentry.ini file from 256 / 512 to 512 / 2048 respectively. But the
error still persists.
Can you please let us know if there are any
other changes required for
the same?
PFA the Java backend and the user
logs. Please treat this ticket with
the highest priority.
Thanks,
Boopalan

Looks like ur getting heap size error while trying to fetch records for ctparts complex table. From platform point of view you have increased heap size. Next step is to analyze application settings for ctparts complex table. As indicated by Steve from application point you need check the need for amount of materials your trying to retrive , can you set filter for ctparts , does ctparts BAPI execute in SAP without any timeout error.
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Regards,
N.S

Hi,
> How do we monitor Java heap size? Is there any way to
> check whether we are exceeding the heap size or not?
>
You should run your JAVA AS with the recommended settings described in the note
"Java VM settings for J2EE 6.30/6.40/7.0"
SAP Note Number: 723909.
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You can also use the option -Xloggc:<file> to log to a seperate file.
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See
http://www.javaperformancetuning.com/tools/gcviewer/index.shtml
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Markus

Extending java heap size

hi,
In message mapping iam importing the ED for target field at that time it tells java heap size is extended. so using repository.jnlp
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Hi Sk
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Memory Management in the VM Container
http://help.sap.com/saphelp_nw04s/helpdata/en/3b/88d863ff72456aa61e993831a76614/frameset.htm
Note 667841 - J2EE Engine 6.20 on AIX: how to increase the heap size
https://websmp130.sap-ag.de/sap(bD1lbiZjPTAwMQ==)/bc/bsp/spn/sapnotes/index2.htm?numm=667841
Note 667711 - Max. JVM Heap Size for AIX JDK 1.3.1
https://websmp130.sap-ag.de/sap(bD1lbiZjPTAwMQ==)/bc/bsp/spn/sapnotes/index2.htm?numm=667711
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sandeep
if helpful reward points

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Sachin Gupta

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I am using a third party tool. When i run a particular program it says OutOfMemory error. I like to increase heap size through Java Code before calling the particular Java application or Code..
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if you start the program with a -Xmx512m flag, the virtual machine gets half a gigabyte of memory to use (or that's the max it's allowed to use). All things run in the same virtual machine will have the same limit, third party tools run in the same virtual machine can't "not care about this" unless they're throwing OOMs themselves for some stupid reason.

Java heap size adminserver

Hello,
i would like to know the java heap memory size for adminserver by default.
regards
Jean marc

hello,
thanks for your answers.
i install oracle bi publisher in standalone on windows 2008 64 bits.
the installation create a weblogic server with an adminserver, bi publisher is installed in the adminserver.
if i look for setDomainEnv.cmd,
i have
set XMS_SUN_64BIT=256
set XMS_SUN_32BIT=256
set XMX_SUN_64BIT=512
set XMX_SUN_32BIT=512
set XMS_JROCKIT_64BIT=256
set XMS_JROCKIT_32BIT=256
set XMX_JROCKIT_64BIT=512
set XMX_JROCKIT_32BIT=512
so , i use java sun 64 bits , so the setting XMX_SUN_64BIT=512 is used.
but if i look in the task manager, the java.exe process, the memory allocated is around 2G .
i don't find xmx settings in adminserver.log located at
I:\BI_HOME\BI11G2\user_projects\domains\bifoundation_domain\servers\AdminServer\logs
regards
jean marc
Edited by: jmniard on 29 juil. 2011 08:40

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I am new to SAP, not to Iseries. The notes 717376 and 990892 give me insight as to what needs chging but not the how to change it.
I want to know if I can set the heap sizes directly in the IFS and How. Our consultants are not ISeries strong... I can not get the Config tool to work, and Visual Admin is too
foreign for me to find where the sizing is.
PI takes way to long to start up and my guess is we need initial heapsize to be set and max increased.
thank you

Hi
I am not sure about iSeries but the configuration of parameters in SAP Java stack always affect the Java system performance. The few steps to change parameters are as follows:
Main point is you have to use the configtool only. You cannot use Visual Administrator to change the memory parameters.
Open the ConfigTool ( usr/sap/<SID>/DVEBMGS<sys nr>/j2ee/configtool file would be configtool.sh)
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check this link
http://www-03.ibm.com/systems/i/advantages/sapj2ee/tuning.html

Java heap size parameters: -Xmx Vs -mx

I am trying to increase heap size of JVM and tried -mx option to mention maximum heap size .It worked for me. As per the java doc the option is -Xmx.
Could any one tell the difference between these two options?
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amar

Hello amarrecherla,
the -X options are not standard JVM options, but sun specific ones. For a complete list type
java -XWith kind regards
Ben

Java heap Size Change

I like to know the file namewhere in we can change/edit the heap size value to check and determine the threshold for the Maximum size of message that a JMS queue can handle with the given CPU and other Infra structure configuration in OSB 11g.

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http://middlewaremagic.com/weblogic
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OC4J Java Heap Size.

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