Jboss heap memory cannot upgrade beyond 3GB

[watanesachin]

Hello All,

I am using jboss 4.2.3, I am trying to upgrade the heap of jboss 4GB and the service cannot start, But when i am doing 3GB service get started. Why this behavior happens in jboss

Please suggest how to resolve this problem.

Thanks & Regards,

Sachin

[watanesachin]

Know one want to answer for same ?

[ptyagi_redhat.com]

Make sure to check if you are running JBoss with 32 bit JDK as 32 bit JDK has a process limitation of 4gb. If you are running JBoss with 32bit JDK, switch to 64bit which does not have a process size limitation of 4gb.

[sshashan]

As Priyanka suggested , try switching to 64 bit JDK and in addition to that, also please check the total RAM of your machine.