JAVA_OPTS for increasing heap size

Question

I want to increase my Heap size. How can I use JAVA_OPTS for doing so.I am getting the following error may be this is because of low heap size

UNEXPECTED TOP-LEV         


        

Answer 1

You should be able to use the information found in this post.

-Xmszzzm

where zzz is your minimum size.

-Xmxzzzm

where zzz is your maximum size.

JAVA_OPTS="-Xms128m -Xmx512m"

You can find more info on VM args here.

How to set it globally in your environment depends on your operating system. Which OS are you using?

EDIT: I see the "ubuntu" tag now.

You should just be able to put the JAVA_OPTs line in etc/environment. Once you modify etc/environment, you'll have to log out and back in for the updated environment variables to take effect.