Sometimes when you receive an error of OutOfMemory while attempting to execute reports or you just execute a huge report using IIS (Internet Information Service). This error message is something like this:
Java.lang.OutOfMemory in MicroStrategy Web
To fix this problem you have to increase the Max Java Heap for MicroStrategy Web.
You just have to:
1. Click Start button (Windows);
2. Select: Execute;
3. Write: regedit
HKEY_LOCAL_MACHINE\Software\Wow6432Node\MicroStrategy\JNI Bridge 64\Configuration\JVM Options\ 5. Double click on the registry: HeapMaxSize 6. Change the default value to something greater. Example: Mine was 512M, I increased to 6144M that is: 1024 * 6 = 6GB RAM for max heap size. Always use number with a M at the end without spaces. Restart your IIS and you will be good. Hope it helps. God bless you!