How to increase jvm heap memory

hello all,
we r facing "outofmemory" exception. could any one kindly help us in increasing the jvm's memory in runtime.
thanks alot
raghu

use java with -Xms and -Xmx options.
see http://java.sun.com/j2se/1.4/docs/tooldocs/windows/java.html
nk

Similar Messages

How to increase JVM Heap Size

Hi all,
Our Environment
===============
OS - Windows XP Service Pack 3
Oracle Developer Suite - 10.1.2.3.0
Oracle Forms & Reports Service 10.1.2.3.0
Oracle Database 10.2.0.1.0
JDK 1.5
Jinitiator 1.3.1.30
Apache POI 3.5
From forms we are writing to excel files after copying XL template using Apache POI 3.5 and JDK 1.5. This XL template file has got lot of macros.
We have imported the Java class files into form as pl/sql library. We are able to write upto 7Mb size of XL file. Beyond that size it comes with the error Ora-105101.
We tried to increase the JVM Heap Size to 640M by setting values -Xmx640M everywhere in OC4J_BI_FORMS/Server Properties/Java Options, Home/Server Properties/Java Options through Enterprise Manager console. Also manually set the values in OPMN.XML and reloaded the same. Also set -Xmx640M in Jinitiator 1.3.1.30 Java Runtime Parameters. Also set in Java console. All settings have no effect.
We have written a small program to display the run time memory from forms, which displays only maximum memory 63M all the time.
PACKAGE BODY HeapSize IS
-- DO NOT EDIT THIS FILE - it is machine generated!
args JNI.ARGLIST;
-- Constructor for signature ()V
FUNCTION new RETURN ORA_JAVA.JOBJECT IS
BEGIN
args := NULL;
RETURN (JNI.NEW_OBJECT('HeapSize', '()V', args));
END;
-- Method: getTotalMemory ()D
FUNCTION getTotalMemory(
obj ORA_JAVA.JOBJECT) RETURN NUMBER IS
BEGIN
args := NULL;
RETURN JNI.CALL_DOUBLE_METHOD(FALSE, obj, 'HeapSize', 'getTotalMemory', '()D', args);
END;
-- Method: getMaxMemory ()D
FUNCTION getMaxMemory(
obj ORA_JAVA.JOBJECT) RETURN NUMBER IS
BEGIN
args := NULL;
RETURN JNI.CALL_DOUBLE_METHOD(FALSE, obj, 'HeapSize', 'getMaxMemory', '()D', args);
END;
BEGIN
NULL;
END;
declare
obj ORA_JAVA.JOBJECT;
BEGIN
obj:=HeapSize.new;
message('Total memory '||HeapSize.getTotalMemory(obj));
message('Max memory '||HeapSize.getMaxMemory(obj));
END;
Below procedure is for writing to Excel file.
============================================
PACKAGE BODY UWWriteExcel IS
-- DO NOT EDIT THIS FILE - it is machine generated!
args JNI.ARGLIST;
-- Constructor for signature ()V
FUNCTION new RETURN ORA_JAVA.JOBJECT IS
BEGIN
args := NULL;
RETURN (JNI.NEW_OBJECT('UWWriteExcel', '()V', args));
END;
-- Method: copyExcel (Ljava/lang/String;Ljava/lang/String;)V
PROCEDURE copyExcel(
obj ORA_JAVA.JOBJECT,
a0 VARCHAR2,
a1 VARCHAR2) IS
BEGIN
args := JNI.CREATE_ARG_LIST(2);
JNI.ADD_STRING_ARG(args, a0);
JNI.ADD_STRING_ARG(args, a1);
JNI.CALL_VOID_METHOD(FALSE, obj, 'UWWriteExcel', 'copyExcel', '(Ljava/lang/String;Ljava/lang/String;)V', args);
END;
-- Method: getSpreadSheetPara (Ljava/lang/String;)V
PROCEDURE getSpreadSheetPara(
obj ORA_JAVA.JOBJECT,
a0 VARCHAR2) IS
BEGIN
args := JNI.CREATE_ARG_LIST(1);
JNI.ADD_STRING_ARG(args, a0);
JNI.CALL_VOID_METHOD(FALSE, obj, 'UWWriteExcel', 'getSpreadSheetPara', '(Ljava/lang/String;)V', args);
END;
-- Method: openSheet (I)V
PROCEDURE openSheet(
obj ORA_JAVA.JOBJECT,
a0 NUMBER) IS
BEGIN
args := JNI.CREATE_ARG_LIST(1);
JNI.ADD_INT_ARG(args, a0);
JNI.CALL_VOID_METHOD(FALSE, obj, 'UWWriteExcel', 'openSheet', '(I)V', args);
END;
-- Method: getCellValues (IID)V
PROCEDURE getCellValues(
obj ORA_JAVA.JOBJECT,
a0 NUMBER,
a1 NUMBER,
a2 NUMBER) IS
BEGIN
args := JNI.CREATE_ARG_LIST(3);
JNI.ADD_INT_ARG(args, a0);
JNI.ADD_INT_ARG(args, a1);
JNI.ADD_DOUBLE_ARG(args, a2);
JNI.CALL_VOID_METHOD(FALSE, obj, 'UWWriteExcel', 'getCellValues', '(IID)V', args);
END;
-- Method: getCellValues (IILjava/lang/String;)V
PROCEDURE getCellValues(
obj ORA_JAVA.JOBJECT,
a0 NUMBER,
a1 NUMBER,
a2 VARCHAR2) IS
BEGIN
args := JNI.CREATE_ARG_LIST(3);
JNI.ADD_INT_ARG(args, a0);
JNI.ADD_INT_ARG(args, a1);
JNI.ADD_STRING_ARG(args, a2);
JNI.CALL_VOID_METHOD(FALSE, obj, 'UWWriteExcel', 'getCellValues', '(IILjava/lang/String;)V', args);
END;
-- Method: exportExcel ()V
PROCEDURE exportExcel(
obj ORA_JAVA.JOBJECT) IS
BEGIN
args := NULL;
JNI.CALL_VOID_METHOD(FALSE, obj, 'UWWriteExcel', 'exportExcel', '()V', args);
END;
-- Method: copy (Ljava/lang/String;Ljava/lang/String;)V
PROCEDURE copy(
a0 VARCHAR2,
a1 VARCHAR2) IS
BEGIN
args := JNI.CREATE_ARG_LIST(2);
JNI.ADD_STRING_ARG(args, a0);
JNI.ADD_STRING_ARG(args, a1);
JNI.CALL_VOID_METHOD(TRUE, NULL, 'UWWriteExcel', 'copy', '(Ljava/lang/String;Ljava/lang/String;)V', args);
END;
BEGIN
NULL;
END;
declare
obj ORA_JAVA.JOBJECT;
BEGIN
message('-1');pause;
obj:=UWWriteExcel.new;
message('0');pause;
UWWriteExcel.copyExcel(obj,'C:\\excel\\CAT2009WS.XLS','C:\\excel\\CAT2009WS.XLS');
message('1');pause;
UWWriteExcel.openSheet(obj,0);
message('2');pause;
UWWriteExcel.getCellValues(obj,6,2,900);
message('3');pause;
UWWriteExcel.getCellValues(obj,7,2,911);
message('4');pause;
UWWriteExcel.exportExcel(obj);
END;
When the size of XL is more than 7Mb, after message(0) it will be display oracle error.
From command prompt if we run the same java class file by passing -Xmx256m parameter we are able to write to big XL file.
Can anyone tell me where I am wrong... Can we increase the JVM Heap Size from forms...

I have a simular problem.
Via Forms I call a Java class (import Java class -> PL/SQL class java method).
For this specific process I need to set the Xmx java option...
How do I do this ?
Changing the java option for the Forms-OC4J in the EM doesn't help.
Is there an other level where I can modify this ?
Does the java process of the forms is the single process that exists ? How does he handles such java calls?
Are that separed java processes ? threads ? ....
Thanks !!!

Increase JVM heap size when calling it from C++

I have a program that loads images and only works properly increasing heap.
java McVImg
gives me an Out of memory error.
java -Xmx120M McVImg
works fine.
If I want to call JVM from a C++ program using Java native interface,
How should I increase JVM heap ?
Thanks in advance. Ignasi Villagrasa.

I'm trying to do what you told me and it doesn't work.
I show the C++ code I'm using:
void JavaParam::LoadJVM()
     JavaVMInitArgs vm_args;
     JavaVMOption options[2];
jint res;
     vm_args.version = JNI_VERSION_1_2;
JNI_GetDefaultJavaVMInitArgs(&vm_args);
     if (res < 0)
fprintf(stderr, " Requested version is not supported\n");
          fputs ("Requested version is not supported\n",traza);
          fflush(traza);
exit(-1);
     //Establecemos classpath
     //Atencion el classpath ser� el jar
     //options[0].optionString = "-Djava.class.path=..";
     options[0].optionString = "-Djava.class.path=..\\mcjava.jar";
     options[1].optionString = "-Xmx120M";
     //Nuevos argumentos
vm_args.options=options;
     vm_args.nOptions = 2;
     vm_args.ignoreUnrecognized = JNI_FALSE;
     //Creamos Maquina Virtual Java
res = JNI_CreateJavaVM(&jvm,(void **)&env,&vm_args);
if (res < 0)
fprintf(stderr, "Can't create Java VM: %d\n",(int)res);
          fprintf(traza, "Can't create Java VM RES: %d \n",(int)res);
          fflush(traza);
exit(1);
     jvm_creada = 1;
Is that right ?
Thanks in advance. Ignasi Villagrasa.

How to increase the heap size of the container in whioch BPEL is running ?

Hi All,
I recently raised an SR they have asked me to do the following,
Can you please try and start the container running the BPEL process with max
heap space (-Xmx) of 2 GB and the eden space (-Xmn) at about 60% of 1228m and
the option -XX:+AggressiveHeap set. (even though this option is recommended for
multi processor machines say 4)
can anyone kindly explain me how to increase the Heap size and Eden size of BPEL container ?
Thank You

Hi Deepak I cant see any attribute or element in the oc4j_opmn.xml file regarding heap memory. In the server properties I changed the size of heap memeory how can I rollback.
I am getting the following error
Configuration information
Running in C:\product\10.1.3.1\OracleAS_1
Operation mode:Startup, App Server, No Enterprise Manager, Single Instance
Oracle home:C:\product\10.1.3.1\OracleAS_1
Oracle home name:Unnamed
Instance name:SOA.01hw117905.India.TCS.com
Instance type:allProducts
Version:10.1.3.4.0
Uses infrastructure:false
Not an infrastructure instance, no infrastructure information available
Components:[j2ee, apache, orabpel, oraesb, owsm, Wsil]
2009-08-19 09:08:51.863--Begin log output for Mid-tier services (SOA.01hw117905.India.TCS.com)
2009-08-19 09:08:51.863--Processing Step: starting OPMN
2009-08-19 09:09:00.394--Processing Step: starting OPMN managed processes
2009-08-19 09:09:35.19--End log output for Mid-tier services (SOA.01hw117905.India.TCS.com)
An unknown OPMN error has occured
oracle.appserver.startupconsole.model.ConsoleException: An unknown OPMN error has occured
     at oracle.appserver.startupconsole.control.OPMNController.doStart(OPMNController.java:121)
     at oracle.appserver.startupconsole.control.Controller.start(Controller.java:69)
     at oracle.appserver.startupconsole.control.GroupController.doStart(GroupController.java:47)
     at oracle.appserver.startupconsole.control.Controller.start(Controller.java:69)
     at oracle.appserver.startupconsole.view.controller.ControllerAdapter.start(ControllerAdapter.java:30)
     at oracle.appserver.startupconsole.view.controller.MasterControlAdapter.run(MasterControlAdapter.java:94)
     at oracle.appserver.startupconsole.view.Runner.main(Runner.java:39)
Caused by: oracle.ias.opmn.optic.OpticControlException: Error from opmn during process control operation
     at oracle.ias.opmn.optic.AbstractOpmnEntity.runCommand(AbstractOpmnEntity.java:174)
     at oracle.ias.opmn.optic.AbstractOpmnEntity.start(AbstractOpmnEntity.java:110)
     at oracle.appserver.startupconsole.control.OPMNController.doStart(OPMNController.java:89)
     ... 6 more
Exception caused by
Error from opmn during process control operation
oracle.ias.opmn.optic.OpticControlException: Error from opmn during process control operation
     at oracle.ias.opmn.optic.AbstractOpmnEntity.runCommand(AbstractOpmnEntity.java:174)
     at oracle.ias.opmn.optic.AbstractOpmnEntity.start(AbstractOpmnEntity.java:110)
     at oracle.appserver.startupconsole.control.OPMNController.doStart(OPMNController.java:89)
     at oracle.appserver.startupconsole.control.Controller.start(Controller.java:69)
     at oracle.appserver.startupconsole.control.GroupController.doStart(GroupController.java:47)
     at oracle.appserver.startupconsole.control.Controller.start(Controller.java:69)
     at oracle.appserver.startupconsole.view.controller.ControllerAdapter.start(ControllerAdapter.java:30)
     at oracle.appserver.startupconsole.view.controller.MasterControlAdapter.run(MasterControlAdapter.java:94)
     at oracle.appserver.startupconsole.view.Runner.main(Runner.java:39)
<?xml version='1.0' encoding='WINDOWS-1252'?>
<response>
<msg code="-82" text="Remote request with weak authentication.">
</msg>
<opmn id="01hw117905:6200" http-status="206" http-response="2 of 3 processes started.">
<ias-instance id="SOA.01hw117905.India.TCS.com">
<ias-component id="default_group">
<process-type id="home">
<process-set id="default_group">
<process id="172" pid="2176" status="Alive" index="1" log="C:\product\10.1.3.1\OracleAS_1\opmn\logs\\default_group~home~default_group~1.log" operation="request" result="success">
<msg code="0" text="">
</msg>
</process>
</process-set>
</process-type>
<process-type id="oc4j_soa">
<process-set id="default_group">
<process id="173" pid="5556" status="Stopped" index="1" log="C:\product\10.1.3.1\OracleAS_1\opmn\logs\\default_group~oc4j_soa~default_group~1.log" operation="request" result="failure">
<msg code="-21" text="failed to start a managed process after the maximum retry limit">
</msg>
</process>
</process-set>
</process-type>
</ias-component>
<ias-component id="HTTP_Server">
<process-type id="HTTP_Server">
<process-set id="HTTP_Server">
<process id="171" pid="2724" status="Alive" index="1" log="C:\product\10.1.3.1\OracleAS_1\opmn\logs\\HTTP_Server~1.log" operation="request" result="success">
<msg code="0" text="">
</msg>
</process>
</process-set>
</process-type>
</ias-component>
</ias-instance>
</opmn>
</response>

Can off JVM heap Memory used in the Near-Cache front-tier

I had tried to config a near-Cache used nio-manager(off JVM heap) in the Front-tier.
<near-scheme>
      <scheme-name>CohApp-near</scheme-name>
      <front-scheme>
        <external-scheme>
        </external-scheme>
      </front-scheme>
      <back-scheme>
        <distributed-scheme>
          <scheme-ref>CohApp-distributed</scheme-ref>
        </distributed-scheme>
      </back-scheme>
      <invalidation-strategy>auto</invalidation-strategy>
      <autostart>true</autostart>
    </near-scheme>
when start 'com.tangosol.net.DefaultCacheServer' for this config, error as:
Oracle Coherence Version 3.7.1.0 Build 27797
Enterprise Edition: Development mode
Copyright (c) 2000, 2011, Oracle and/or its affiliates. All rights reserved.
2014-03-30 16:34:17.518/1.201 Oracle Coherence EE 3.7.1.0 <Error> (thread=main,
member=n/a): Error org.xml.sax.SAXParseException: cvc-complex-type.2.4.a: Invali
d content was found starting with element 'external-scheme'. One of '{"http://xm
lns.oracle.com/coherence/coherence-cache-config":local-scheme, "http://xmlns.ora
cle.com/coherence/coherence-cache-config":class-scheme}' is expected. - line 92
Exception in thread "main" (Wrapped: Failed to load the factory) (Wrapped: Missi
ng or inaccessible constructor "com.tangosol.net.DefaultConfigurableCacheFactory
(String)"
<configurable-cache-factory-config>
<class-name>com.tangosol.net.DefaultConfigurableCacheFactory</class-name>
<init-params>
    <init-param>
      <param-type>java.lang.String</param-type>
      <param-value>coherence-cache-config.xml</param-value>
    </init-param>
</init-params>
</configurable-cache-factory-config>) java.lang.reflect.InvocationTargetExceptio
n
        at com.tangosol.util.Base.ensureRuntimeException(Base.java:288)
        at com.tangosol.net.ScopedCacheFactoryBuilder.getDefaultFactory(ScopedCa
cheFactoryBuilder.java:311)
        at com.tangosol.net.DefaultCacheFactoryBuilder.getSingletonFactory(Defau
ltCacheFactoryBuilder.java:48)
        at com.tangosol.net.DefaultCacheFactoryBuilder.getFactory(DefaultCacheFa
ctoryBuilder.java:121)
        at com.tangosol.net.ScopedCacheFactoryBuilder.getConfigurableCacheFactor
y(ScopedCacheFactoryBuilder.java:112)
        at com.tangosol.net.CacheFactory.getConfigurableCacheFactory(CacheFactor
y.java:126)
        at com.tangosol.net.DefaultCacheServer.getDefaultConfigurableCacheFactor
y(DefaultCacheServer.java:364)
        at com.tangosol.net.DefaultCacheServer.main(DefaultCacheServer.java:197)
Caused by: (Wrapped: Missing or inaccessible constructor "com.tangosol.net.Defau
ltConfigurableCacheFactory(String)"
<configurable-cache-factory-config>
<class-name>com.tangosol.net.DefaultConfigurableCacheFactory</class-name>
<init-params>
    <init-param>
      <param-type>java.lang.String</param-type>
      <param-value>coherence-cache-config.xml</param-value>
    </init-param>
</init-params>
</configurable-cache-factory-config>) java.lang.reflect.InvocationTargetExceptio
n
        at com.tangosol.util.Base.ensureRuntimeException(Base.java:288)
        at com.tangosol.run.xml.XmlHelper.createInstance(XmlHelper.java:2652)
        at com.tangosol.run.xml.XmlHelper.createInstance(XmlHelper.java:2536)
        at com.tangosol.net.ScopedCacheFactoryBuilder.getDefaultFactory(ScopedCa
cheFactoryBuilder.java:273)
        ... 6 more
Caused by: java.lang.reflect.InvocationTargetException
        at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
        at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstruct
orAccessorImpl.java:39)
        at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingC
onstructorAccessorImpl.java:27)
        at java.lang.reflect.Constructor.newInstance(Constructor.java:513)
        at com.tangosol.util.ClassHelper.newInstance(ClassHelper.java:694)
        at com.tangosol.run.xml.XmlHelper.createInstance(XmlHelper.java:2611)
        ... 8 more
Caused by: (Wrapped: Failed to load cache configuration: coherence-cache-config.
xml) (Wrapped) java.io.IOException: Exception occurred during schema validation:
cvc-complex-type.2.4.a: Invalid content was found starting with element 'externa
l-scheme'. One of '{"http://xmlns.oracle.com/coherence/coherence-cache-config":l
ocal-scheme, "http://xmlns.oracle.com/coherence/coherence-cache-config":class-sc
heme}' is expected.
        at com.tangosol.util.Base.ensureRuntimeException(Base.java:288)
        at com.tangosol.run.xml.XmlHelper.loadResourceInternal(XmlHelper.java:34
1)
        at com.tangosol.run.xml.XmlHelper.loadFileOrResource(XmlHelper.java:283)
        at com.tangosol.net.DefaultConfigurableCacheFactory.loadConfig(DefaultCo
nfigurableCacheFactory.java:439)
        at com.tangosol.net.DefaultConfigurableCacheFactory.loadConfig(DefaultCo
nfigurableCacheFactory.java:425)
        at com.tangosol.net.DefaultConfigurableCacheFactory.<init>(DefaultConfig
urableCacheFactory.java:155)
        ... 14 more
Caused by: (Wrapped) java.io.IOException: Exception occurred during schema valid
ation:
cvc-complex-type.2.4.a: Invalid content was found starting with element 'externa
l-scheme'. One of '{"http://xmlns.oracle.com/coherence/coherence-cache-config":l
ocal-scheme, "http://xmlns.oracle.com/coherence/coherence-cache-config":class-sc
heme}' is expected.
        at com.tangosol.run.xml.XmlHelper.loadXml(XmlHelper.java:122)
        at com.tangosol.run.xml.XmlHelper.loadXml(XmlHelper.java:157)
        at com.tangosol.run.xml.XmlHelper.loadResourceInternal(XmlHelper.java:32
2)
        ... 18 more
Caused by: java.io.IOException: Exception occurred during schema validation:
cvc-complex-type.2.4.a: Invalid content was found starting with element 'externa
l-scheme'. One of '{"http://xmlns.oracle.com/coherence/coherence-cache-config":l
ocal-scheme, "http://xmlns.oracle.com/coherence/coherence-cache-config":class-sc
heme}' is expected.
        at com.tangosol.run.xml.SimpleParser.parseXml(SimpleParser.java:212)
        at com.tangosol.run.xml.SimpleParser.parseXml(SimpleParser.java:93)
        at com.tangosol.run.xml.SimpleParser.parseXml(SimpleParser.java:162)
        at com.tangosol.run.xml.SimpleParser.parseXml(SimpleParser.java:115)
        at com.tangosol.run.xml.XmlHelper.loadXml(XmlHelper.java:118)
        ... 20 more
Caused by: org.xml.sax.SAXParseException: cvc-complex-type.2.4.a: Invalid conten
t was found starting with element 'external-scheme'. One of '{"http://xmlns.orac
le.com/coherence/coherence-cache-config":local-scheme, "http://xmlns.oracle.com/
coherence/coherence-cache-config":class-scheme}' is expected.
        at com.sun.org.apache.xerces.internal.util.ErrorHandlerWrapper.createSAX
ParseException(ErrorHandlerWrapper.java:195)
        at com.sun.org.apache.xerces.internal.util.ErrorHandlerWrapper.error(Err
orHandlerWrapper.java:131)
        at com.sun.org.apache.xerces.internal.impl.XMLErrorReporter.reportError(
XMLErrorReporter.java:384)
        at com.sun.org.apache.xerces.internal.impl.XMLErrorReporter.reportError(
XMLErrorReporter.java:318)
        at com.sun.org.apache.xerces.internal.impl.xs.XMLSchemaValidator$XSIErro
rReporter.reportError(XMLSchemaValidator.java:417)
        at com.sun.org.apache.xerces.internal.impl.xs.XMLSchemaValidator.reportS
chemaError(XMLSchemaValidator.java:3182)
        at com.sun.org.apache.xerces.internal.impl.xs.XMLSchemaValidator.handleS
tartElement(XMLSchemaValidator.java:1806)
        at com.sun.org.apache.xerces.internal.impl.xs.XMLSchemaValidator.startEl
ement(XMLSchemaValidator.java:705)
        at com.sun.org.apache.xerces.internal.impl.XMLNSDocumentScannerImpl.scan
StartElement(XMLNSDocumentScannerImpl.java:400)
        at com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImp
l$FragmentContentDriver.next(XMLDocumentFragmentScannerImpl.java:2756)
        at com.sun.org.apache.xerces.internal.impl.XMLDocumentScannerImpl.next(X
MLDocumentScannerImpl.java:648)
        at com.sun.org.apache.xerces.internal.impl.XMLNSDocumentScannerImpl.next
(XMLNSDocumentScannerImpl.java:140)
        at com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImp
l.scanDocument(XMLDocumentFragmentScannerImpl.java:511)
        at com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(X
ML11Configuration.java:808)
        at com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(X
ML11Configuration.java:737)
        at com.sun.org.apache.xerces.internal.jaxp.validation.StreamValidatorHel
per.validate(StreamValidatorHelper.java:144)
        at com.sun.org.apache.xerces.internal.jaxp.validation.ValidatorImpl.vali
date(ValidatorImpl.java:111)
        at javax.xml.validation.Validator.validate(Validator.java:127)
        at com.tangosol.run.xml.SaxParser.validateXsd(SaxParser.java:236)
        at com.tangosol.run.xml.SimpleParser.parseXml(SimpleParser.java:206)
So I think that if can off JVM heap Memory used in the Near-Cache front-tier?
Or can help how to config the off JVM heap Memory used in the Near-Cache front-tier.
Thanks.

Only local-scheme and class-scheme can be used in the front-scheme of a near cache.

How to increase the heap space size -is there any parameter to pass to JVM

I created a memory buffering module which can be use to buffer log records and write to hard disk.disk writing is done by a separate thread so the main application won't be delayed. and memory for new errors are allocated dynamically. when i test this it gave this exception Exception in thread "Thread-62" java.lang.OutOfMemoryError: Java heap space then I test 100,000 of log records at a time and sleep the thread for 1 second to let the garbage collector do its job this works fine. but when i increase the log records count further it gave the above error. so i want to know whether is there a way to give the heap memory size to the VM as a parameter before running it.

I created a memory buffering module which can be use to buffer log records and write to hard disk.disk writing is done by a separate thread so the main application won't be delayed. and memory for new errors are allocated dynamically. when i test this it gave this exception Exception in thread "Thread-62" java.lang.OutOfMemoryError: Java heap space then I test 100,000 of log records at a time and sleep the thread for 1 second to let the garbage collector do its job this works fine. but when i increase the log records count further it gave the above error. so i want to know whether is there a way to give the heap memory size to the VM as a parameter before running it.

How to increase JVM Process size for WebLogic running SOA Applications.

Hi,
I believe 32 Bit OS can address up to 4GB memory so theoretically 32 Bit JVM can use 4GB but practical convention is 2GB as other 2GB is used by OS itself and also this default JVM Process size is set somewhere and I also believe that if JVM is 32 bit on 64Bit OS even though JVM will run on 32Bit Virtual Machine so JVM does not know that it is 64Bit OS in that case again it can use max Process default size up to 2GB.
And for 64Bit JVM, I can allocate more than 4GB depend on my available RAM size to Xmx, MaxPermSize parameters in java.exe file and after that I can set the same value in “setSOADomainEnv.cmd” or to “setDomainEnv.cmd” file.
But I am 99% sure by just assigning more memory value to Xmx, MaxPermSize in “setSOADomainEnv.cmd” file only won’t work (not setting Xmx in java.exe), if it would have worked then in my case when I was assigning 1536 to Xmx in “setSOADomainEnv.cmd” file then why it was showing out of memory error. I think that is because it was only taking default 2GB for my 32 Bit JVM not considering 3GB or 4GB. So i think i have to change default memory size what JVM can use (<http://www.wikihow.com/Increase-Java-Memory-in-Windows-7> but i am using windows 8 so for that I don’t know the option to change this default Process Size)
I also believe that first JVM start and before start it check how much memory it can use from it’s own –Xmx parameter in some ware configuration or java.exe file and after that it allocate that much size of JVM Process Memory in RAM then after it loads Weblogic or Java Applications in its (Heap + Non-heap + Native Area) which are parts of JVM Process memory
I read post on :< http://stackoverflow.com/questions/3143579/how-can-jvm-use-more-than-4gb-of-memory > and < http://alvinalexander.com/blog/post/java/java-xmx-xms-memory-heap-size-control >
All used :
java -Xmx64m -classpath ".:${THE_CLASSPATH}" ${PROGRAM_NAME}
java –Xmx6g //command which will call java/JVM interpreter which will hold –Xmx parameter to set Heap size for JVM
before JVM comes in memory (JVM process memory)
now my question is can I manually open any configuration file or java.exe same like “setSOADomainEnv.cmd” or “setDomainEnv.cmd” (I know since java.exe is exe I can’t open simply but I want similar work around)
so that I don’t need to type java –Xmx6g every time when I run weblogic (and then later I can change weblogic “setDomainEnv.cmd” Xmx and PermSize to more than default size 4GB to 5GB or 6GB in the case of 64Bit OS)
Please correct me if I am wrong in my understanding.
Thanks.

These days the VM will detect a "server" machine and set up the memory appropriate for that.
You can create a simple java console application and have it print the memory settings (find the appropriate java class fort that.)
There is of course the possibility that your application is running out of memory because it is doing something wrong and not because the VM doesn't have enough memory. You can force that in a test setup by LOWERING the maximum amount of memory and thus making it more likely that an out of memory exception will occur.

How to increase the Heap space of Jdeveloper for about more than 512 MB?

When starting JDeveloper, the application within JDeveloper is throwing the error message:
"could not reserve enough space for object heap"
and a windows popup with the following error message:
"Unable to create an instance of the Java Virtual Machine Located at path: ..\..\jdk\jre\bin\client\jvm.dll "
To resolve these issues, i know that adding the following in ide.conf , jdev.conf will help.
AddVMOption -XX:MaxPermSize=512M
AddVMOption -Xmx512M
AddVMOption -Xms512M
I have got 10 GB of RAM in my desktop machine and virtual memory of 15 GB (page size). I am not able to increse the heap space of Jdeveloper for about more than 512MB. This is really frustrating..I had to restart my jdevloper after 3 or 4 deployments.....Has anyone tried success in increasing the heap space in jdeveloper for about 2 GB?
Regards
Prasath.C

Yes, i know that -XX:MaxPermSize has nothing to do with Heap Memory. I Just pasted all my configuration settings to know if some thing or the other has caused the issue.... After hearing few people who increased the heap space to more than 512m , i played with those settings again and figured out few things...Mine is Jdeveloper 11.1.1.4, 64 bit Windows 7 environment, 64 bit Java/ JDK.
First, i was deceived by one suggestion in forum that, keeping max and min heap memory to same size always will yield in good performance...From that time on wards, i was always increasing both and was never able to move more than 512m..But this time, i kept the min memory as constand and kept on changing the max memory ..
Jdev.conf
AddVMOption -XX:MaxPermSize=512M
AddVMOption -Xmx972M (I was never able to increase more than this size, though i have around 10GB RAM, if not Jdev doesnt startup)
AddVMOption -Xms512M
Ide.conf
AddVMOption -Xmx2048M (here i was able to increase)
AddVMOption -Xms512M
But even then, i was not seeing my changed settings at the time of deployment...
starting weblogic with Java version:
java version "1.6.0_21"
Java(TM) SE Runtime Environment (build 1.6.0_21-b51)
Java HotSpot(TM) Client VM (build 17.0-b17, mixed mode)
Starting WLS with line:
C:\Oracle\MIDDLE~1\JDK160~1\bin\java -client -Xms512m -Xmx512m -XX:MaxPermSize=512m -Dweblogic.Name=DefaultServer ..........
Then i changed again into
setDomainEnv.cmd of my default domain
set USER_MEM_ARGS=-Xms512m -Xmx2048m -XX:MaxPermSize=512m
Then i stared my deployment...this time i could see a real boost in deployment...and my page was launched in a fraction of minute..
tarting weblogic with Java version:
java version "1.6.0_21"
Java(TM) SE Runtime Environment (build 1.6.0_21-b51)
Java HotSpot(TM) Client VM (build 17.0-b17, mixed mode)
Starting WLS with line:
C:\Oracle\MIDDLE~1\JDK160~1\bin\java -client -Xms512m -Xmx2048m -XX:MaxPermSize=512m -Dweblogic.Name=DefaultServer ..........
This is my working configuration....Thanks guys for your replies.....
Regards
Prasath.C
Edited by: Prasath C on 05-Aug-2011 04:41

Does bdb cache use JVM heap memory?

I'm using BDB Java API. Do I need to set the heap size to be bigger than the db cache size?

Hi Mimi,
BDB cache size and JVM heap size are used for two different things. Cache size is used for storing the db data in modifying them in memory. If the cache size is not optimum then there would be too much of I/O activity and the performance would be affected.
JVM heap size is used by the JVM to store the objects that the application creates. If the heap size is too small and there are too many objects get created by the application then the GC thread would be very active and will affect the performance of the application.
Whether the heap size would be bigger than the cache size or not will depend upon how the application works.
-Debsubhra Roy

How to increase java heap space on BIEE 10.1.3.3.1

Hi All,
I am using BIEE 10.1.3.3.1.
while doing bursting i am getting java heap space error. how can i increase java heap space.
Please anyone explain how to increase .. its very urgent
Regards

Yes, but I have not one, but TWO configurations.
One configuration named StateTEDSTest points at the DataSource named teds_proxy_tedsdev_dasis8. Another named StateTEDSProd points at the DataSource named teds_proxy_teds_dasis8.
What you seem to be saying is that I should only have one configuration, point it at a DataSource named, say, teds_proxyDS, then make teds_proxyDS reference the test database on the test application and the production database on the production application. I agree that that would probably work, but it negates any benefit of being able to define more than one configuration.
What I asked is, how do I tell one deployment to use the configuration named StateTEDSTest, and another to use the configuration named StateTEDSProd?
Looks like I'm not the first to ask this - see this thread:
basic deployment question
Unfortunately, no answer there either.

How to check JVM used memory in code?

Hello,
In my code I want to check JVM used memory and dump to a log file. Is any way to do that?
Thx a lot!
SG

Ok, you've been a forum member for how long? Anyway, look at the javadocs:
http://java.sun.com/j2se/1.4.2/docs/api/
See the Runtime class.

Plz can you help me. How to increase the Heap Size!!!!!!!!!!!

Hi,
i'm new to 10g appl server
Failed to deploy web application "AGXI51". Failed to deploy web application "AGXI51". . The evaluate phase failed. The Adapter used in the evaluate may have thrown an exception.
Resolution:
Please call Oracle support.
Base Exception:
java.lang.OutOfMemoryError
null. java.lang.OutOfMemoryError
i'm getting this Error while deploying the application.So wat is the procedure to increase the Heap Size
Regards,
Niranjan.D

Locate opmn.xml on your instance. In file locate section relevant for container you use (i.e. "home"). In next line you can see tags where startup parameters are set. You should add following parameters (this will set heap size on 512Mb)
-Xms512m -Xmx512m
For detailed explanation I would recommend you to check following link:
http://download-uk.oracle.com/docs/cd/B25221_03/web.1013/b14431/troublesht.htm
Hope this help.

How to get jvm heap size?

Hi All,
I would like to get the jvm heap size.
by which method to get jvm heap size?
Where it can be executed?
Thanks,

You can get this:
http://java.sun.com/j2se/1.4.2/docs/api/java/lang/Runtime.html#freeMemory()

How to set JVM heap?

Hi,
I don't know where to set the JVM heap...can anybody give me step by step to set the JVM heap..

What do you mean by set the heap? Set its size?Yes, what I mean is heap size. I got the problem java.lang.outOfmemory, and try ind the solution. Some of solution said set the heap size but it didn't explain in more detail.
Look at the arguments to java. (I mean "java" as in
"java.exe", the JVM executable.)What u mean look at the arguments to java?

How to increase JVM memory for Web Logic 10.3.3 - OSB 11g

Hello folks,
I am running OSB 11g on WebLogic 10.3.3 to call some services passing large XMLs requests. These XMLs are something around 10mb each. Unfortunately, I got errors regarding memory.
I am using Eclipse with OSB plugin to develop, and I have configured the weblogic server to start up it from the eclipse, thus I don't need to start up through command line.
I would like to know where I can change the memory arguments to start up the JVM which runs the WebLogic server. As I am starting up the server from eclipse, I can't change the memory size args from command line.
Is there a file where those arguments are stored? or some configuration on WebLogic console which I can increase the Xms and Xmx ?
The JVM is jrockit_160_17_R28.0.0-679
This is the eclipse console output when the server is starting up:
JAVA Memory arguments: -Xms256m -Xmx512m
WLS Start Mode=Development
CLASSPATH=C:\Davi\osb\mw_1033\WLSERV~1.3\server\ext\jdbc\oracle\11g\ojdbc6dms.jar;;C:\Davi\osb\mw_1033\OSB_OR~1\modules\features\osb.server.modules_11.1.1.3.jar;C:\Davi\osb\mw_1033\patch_wls1033\profiles\default\sys_manifest_classpath\weblogic_patch.jar;C:\Davi\osb\mw_1033\patch_oepe1033\profiles\default\sys_manifest_classpath\weblogic_patch.jar;C:\Davi\osb\mw_1033\JROCKI~1.0-6\lib\tools.jar;C:\Davi\osb\mw_1033\WLSERV~1.3\server\lib\weblogic_sp.jar;C:\Davi\osb\mw_1033\WLSERV~1.3\server\lib\weblogic.jar;C:\Davi\osb\mw_1033\modules\features\weblogic.server.modules_10.3.3.0.jar;C:\Davi\osb\mw_1033\WLSERV~1.3\server\lib\webservices.jar;C:\Davi\osb\mw_1033\modules\ORGAPA~1.1/lib/ant-all.jar;C:\Davi\osb\mw_1033\modules\NETSFA~1.0_1/lib/ant-contrib.jar;C:\Davi\osb\mw_1033\osb_ora11g\soa\modules\oracle.soa.common.adapters_11.1.1\oracle.soa.common.adapters.jar;C:\Davi\osb\mw_1033\ORACLE~1\modules\oracle.jrf_11.1.1\jrf.jar;C:\Davi\osb\mw_1033\OSB_OR~1\lib\version.jar;C:\Davi\osb\mw_1033\OSB_OR~1\lib\alsb.jar;C:\Davi\osb\mw_1033\OSB_OR~1\3rdparty\lib\j2ssh-ant.jar;C:\Davi\osb\mw_1033\OSB_OR~1\3rdparty\lib\j2ssh-common.jar;C:\Davi\osb\mw_1033\OSB_OR~1\3rdparty\lib\j2ssh-core.jar;C:\Davi\osb\mw_1033\OSB_OR~1\3rdparty\lib\j2ssh-dameon.jar;C:\Davi\osb\mw_1033\OSB_OR~1\3rdparty\classes;C:\Davi\osb\mw_1033\OSB_OR~1\lib\external\log4j_1.2.8.jar;C:\Davi\osb\domains\INFOLE~1\config\osb;C:\Davi\osb\mw_1033\WLSERV~1.3\common\derby\lib\derbynet.jar;C:\Davi\osb\mw_1033\WLSERV~1.3\common\derby\lib\derbyclient.jar;C:\Davi\osb\mw_1033\WLSERV~1.3\server\lib\xqrl.jar
PATH=C:\Davi\osb\mw_1033\patch_wls1033\profiles\default\native;C:\Davi\osb\mw_1033\patch_oepe1033\profiles\default\native;C:\Davi\osb\mw_1033\WLSERV~1.3\server\native\win\32;C:\Davi\osb\mw_1033\WLSERV~1.3\server\bin;C:\Davi\osb\mw_1033\modules\ORGAPA~1.1\bin;C:\Davi\osb\mw_1033\JROCKI~1.0-6\jre\bin;C:\Davi\osb\mw_1033\JROCKI~1.0-6\bin;C:\WINDOWS\system32;C:\WINDOWS;C:\WINDOWS\System32\Wbem;C:\WINDOWS\System32\WindowsPowerShell\v1.0\;C:\Program Files\Microsoft Application Virtualization Client;C:\Program Files\Attachmate\Reflection\;c:\Program Files\Microsoft SQL Server\100\Tools\Binn\;c:\Program Files\Microsoft SQL Server\100\DTS\Binn\;C:\Davi\osb\mw_1033\WLSERV~1.3\server\native\win\32\oci920_8
* To start WebLogic Server, use a username and *
* password assigned to an admin-level user. For *
* server administration, use the WebLogic Server *
* console at http:\\hostname:port\console *
starting weblogic with Java version:
java version "1.6.0_17"
Java(TM) SE Runtime Environment (build 1.6.0_17-b04)
Oracle JRockit(R) (build R28.0.0-679-130297-1.6.0_17-20100312-2123-windows-ia32, compiled mode)
Starting WLS with line:
C:\Davi\osb\mw_1033\JROCKI~1.0-6\bin\java -jrockit -Xms256m -Xmx512m -Dweblogic.Name=AdminServer -Djava.security.policy=C:\Davi\osb\mw_1033\WLSERV~1.3\server\lib\weblogic.policy -Xverify:none -da -Dplatform.home=C:\Davi\osb\mw_1033\WLSERV~1.3 -Dwls.home=C:\Davi\osb\mw_1033\WLSERV~1.3\server -Dweblogic.home=C:\Davi\osb\mw_1033\WLSERV~1.3\server -Ddomain.home=C:\Davi\osb\domains\INFOLE~1 -Dcommon.components.home=C:\Davi\osb\mw_1033\ORACLE~1 -Djrf.version=11.1.1 -Dorg.apache.commons.logging.Log=org.apache.commons.logging.impl.Jdk14Logger -Djrockit.optfile=C:\Davi\osb\mw_1033\ORACLE~1\modules\oracle.jrf_11.1.1\jrocket_optfile.txt -Doracle.domain.config.dir=C:\Davi\osb\domains\INFOLE~1\config\FMWCON~1 -Doracle.server.config.dir=C:\Davi\osb\domains\INFOLE~1\config\FMWCON~1\servers\AdminServer -Doracle.security.jps.config=C:\Davi\osb\domains\INFOLE~1\config\fmwconfig\jps-config.xml -Djava.protocol.handler.pkgs=oracle.mds.net.protocol -Digf.arisidbeans.carmlloc=C:\Davi\osb\domains\INFOLE~1\config\FMWCON~1\carml -Digf.arisidstack.home=C:\Davi\osb\domains\INFOLE~1\config\FMWCON~1\arisidprovider -Dweblogic.alternateTypesDirectory=C:\Davi\osb\mw_1033\ORACLE~1\modules\oracle.ossoiap_11.1.1,C:\Davi\osb\mw_1033\ORACLE~1\modules\oracle.oamprovider_11.1.1 -Dweblogic.jdbc.remoteEnabled=false -Dweblogic.management.discover=true -Dwlw.iterativeDev= -Dwlw.testConsole= -Dwlw.logErrorsToConsole= -Dweblogic.ext.dirs=C:\Davi\osb\mw_1033\patch_wls1033\profiles\default\sysext_manifest_classpath;C:\Davi\osb\mw_1033\patch_oepe1033\profiles\default\sysext_manifest_classpath weblogic.Server
Thanks in advance,
Davinod
Edited by: user13631313 on Jan 10, 2011 10:07 AM

Hi Davinod,
Yes, the correct place is to change the memory arguments in the "setDomainEnv.cmd", however can you confirm if the changed memory arguments were reflected in the logs or not.
If yes then you need to try to increase the memory arguments again and test which is the best working memory argument suitable for your environment, this would take some trials.
However if the memory arguments are still not reflected then try to set it properly as shown below:
set MEM_ARGS=-Xms1024m -Xmx1024m
Regards,
Ravish Mody
http://middlewaremagic.com/weblogic/
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How to increase jvm heap memory

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