I'm using a Windows 7 PC and i want to increase my java heap size but not for an application
So the command java -xmx4g e.g. is not possible.
I want to increase the java heap size in generel.
Is this somehow possible?
I appreciate every answer.
Sorry for my bad english
PS: I'm using 64-bit JVM on a 64-bit Win 7 PC
commands -java Xmx6G and set JAVA_OPTS=-Xms1024M -Xmx6144M does not work even when writing it in the startup.bat
I get the error in a program that consists of 10 same steps the first 4 are no problem but after the 4th i get the error.
Error: javax.xml.ws.soap.SOAPFaultException: Java heap space
Best regards,
Eros Kilinc
It's only possible on 64-bit JVM and 64-bit Windows, on 32-bit JVM / PC max heap size is about 1.2M
Related
About the following message:
Could not reserve enough space for 3145728KB object heap
I need some tips to understand what's going on
Points & Observations:
Running over Windows 10 x64 (16G Memory)
It only happens using this distribution: https://jdk.java.net/java-se-ri/8-MR3
It works fine using the build from AdoptOpenJDK: https://adoptopenjdk.net/?variant=openjdk8&jvmVariant=hotspot
At pom.xml, I've tried to add the following line: <extraJvmArgs>-Xms1G -Xmx4G -Xss1M -XX:-UseGCOverheadLimit -XX:MaxHeapSize=4G</extraJvmArgs>. But it "complains" The specified size exceeds the maximum representable size. (The original Xmx and MaxHeapSize was 3G)
Main Objective: To compile a project that was done previously using Oracle JDK8 with the Open JDK8
Any "lights"?
------ Edit
arg -d64 returns Error: This Java instance does not support a 64-bit JVM.
Maybe it's 32 bits the compilation from Java website?
I've started seeing the following error using 32-bit (and 64 for that matter) Java 6 (on Windows 8 x64. This wasn't an issue until some Windows updates were installed.....) to call ant scripts
Error occurred during initialization of VM
Could not reserve enough space for object heap
Could not create the Java virtual machine.
Anyone ever seen it before? I've done some digging around SO and other places and haven't come across anything that's solved this issue for
Edit 8/24
So far, here are the following things I have attempted to fix the issue, none of which have worked:
Setting _JAVA_OPTIONS in system environment variables, up to 3gb for the maximum heap size
Setting JVM_OPTS in cmd before invoking ant, again max heap size up to 3gb
Passing in -Xms and -Xmx arguments when making the actual java call, like so %JAVA_HOME%\bin\java -Xms512m -Xmx2048m org.apache.tools.ant.Main
Setting the ANT_OPTS variable before calling ant
Uninstalling Windows updates going back before these issues.
Does anyone have a solution that differs from the following? As the other attempts have not been working..
When you run on 32-bit windows (or in the 32-bit windows emulator) you have only about 1.2 GB - 1.5 GB of virtual memory available. This size depends on what else you might have running in that space as it doesn't always isolate programs from each other in terms of memory space (i.e. the memory space is limit and shared)
So after updating windows, it could have installed a new program which is run before Java, or updated an existing which is using more memory.
The simplest solution is to use a 64-bit JVM which doesn't have this problem. Or you have to reduce the maximum heap size.
Unable to set java heap space using -Xmx to 2GB or more even though the RAM size is 16GB.
I encounter an error saying "
Error: Could not create the Java Virtual Machine.
Error: A fatal exception has occurred. Program will exit"
This is seen while starting a Jenkins server on my Win2008 x64 machine.
Please let me know if I could change any system parameter which will allow me to allocate more memory.
Thanks
Run
java -version
and check you see
Java HotSpot(TM) 64-Bit Server VM (build 24.51-b03, mixed mode)
I expect you have a 32 bit version of java which is limited to 2 GB (as its not large address aware)
Found the fix with the help of clue given above by Neil.
Here is the full details:
Even though the machine is installed with JDK 1.7 x64 bit, Jenkins by default is not configured with this version available on the machine.
Jenkins has its own JRE bundled with the installer which is used by default.
To change it to a different JDK edit the Jenkins.xml file and modify the below value
<executable>jre\bin\java</executable>
to
<executable><jdk install path>\bin\java</executable>
This is now solved!!
Use "java -version" to ensure that your java hotspot is a 64-bit server vm.
theoretical limit for maximum heap size on 32 bit JVM is 4GB and for 64 bit JVM its 2^64
For more detail Click here
I want to increase heap java to avoid this error message
I have windows 7 64bit with java version
C:\Users\Rasha>java -version
java version "1.5.0_15"
Java(TM) 2 Runtime Environment, Standard Edition (build 1.5.0_15-b04)
Java HotSpot(TM) Client VM (build 1.5.0_15-b04, mixed mode)
java -Xms1024m -Xmx1024m -XX:PermSize=512m -XX:MaxPermSize=512m
Error occurred during initialization of VM
Could not reserve enough space for object
Could not create the Java virtual machine.
Although I have already 6 Gigabyte memory, how to made the system to recognize them?
any suggestions for this problem?
Use the 64 bit JVM. The 32 bit JVM cannot allocate much beyond 1.5 gb (eg right about where you are having difficulties) due to need for contiguous address space. I KNOW you are using the 32 bit JVM because it says "Client VM" above, and there is no "Client VM" for 64 bit.
thank you, I found the problem, I have multi version of java which conflicts the configuration
the solution is to remove all versions and install the java 64 bit version and the space is allocated well
thank you every body
I want to run a memory intensive package on a web server.
Current computer's settings are...
Windows 7 64 bit
64-bit JVM
RAM: 8GB
When I try to run eclipse with
-Xms1024m -Xmx2048m -XX:MaxPermSize=256m
I get:
Error occurred during initialization of VM
Could not reserve enough space for object heap
Could not create the Java virtual machine.
From posts that I read, it seems like I should be able to use more than 4GB of memory.
When I ran the code, I was able to max out the memory at -Xmx1200M and still be able to run the code. But for what I want to accomplish, I need to use more memory. How can I increase the memory size here?
Thank you everyone. The issue was that I was using a 32-bit version of JDK. I was able to run memory at 2GB after switching the JDK to the 64 bit version. Thanks!
The problem was that I was using a 32-bit version of JDK.
Thank you, and thank you to Mister Smith for pointing out that I should answer it and mark it as solved.