How to reduce the use of PermGen space in Grails-Collection of common programming errors

PermGen is a part of memory to store the static components of your app, mostly classes. Literally it will not be affected by either the amount of users or logs associated with user activities, which consumes heap space instead.

To reduce PermGen storage, you have to check your code, redesign those algorithms which contains unnecessary/redundant objects and operations, and consolidate variables and functions if possible. Generally speaking, simplified code will produce smaller executable files. That’s the way you save the PermGen space.