setting the heap size of a 32 bit JVM on a 64 bit Windows 7

I have a 64 bit Windows 7 machine with a 32 bit JVM. I have used the following commands to check whether my JVM is 32-bit or 64-bit

System.getProperty("sun.arch.data.model");
System.getProperty("os.arch");

The application I'm working on requires more heap space than the default 256 MB.So I have set the initialHeapSize=256 MB and maximumHeapSize=1490 MB in my Websphere Application Server 8.0.However after setting these properties in admin console,I'm not able to start the application server .It says "Error occured during start-up". If i set the maximumHeapSize=1230 MB, then the application server starts.But I have a requirement where i need the heap size to be increased upto 1900 MB. I'm completely out of options. Please help !!

Thanks

Answers


Can you tell what error you are seeing in WAS logs probably in native_stderr.log or native_stdout.log file when the value set to "1490mb" ?

Are you specifying those values under "Application servers > server_name > Process definition > Java Virtual Machine" section ?

-vt Note: These opinions are my own


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