CODEWITHSUNDEEP
tomcatgrails
Programmer Khan
Programmer Khan

Reputation: 45

Optimum PermSize for a Grails application deployed on tomcat server?

I downloaded source code from an opensource clinic management system [CMS] (http://cms.mobigator.com/pages/index.asp?lang=en), It is developed in Grails. I was able to build it successfully, created war and deployed war on Tomcat Server. but every time the application through permgerm error. I increased the permsize to 1G. Will that be enough for the application.? Secondly I am a Java Programmer, where I can start learning Grails framework? I am finding difficulty understanding the code and applying changes

Upvotes: 1

Views: 386

Answers (2)

Sachin Verma
Sachin Verma

Reputation: 3802

Increased permgen to 1G?

PermGen is where classes are loaded make sure you set that considering your libraries included in the project.
You must set the permgen near 256-384 only if the used libraries are not too much.

A good way change mem config is in apache/bin/catalina.sh
add:

JAVA_OPTS="-Dfile.encoding=UTF-8 -server -Xms512m -Xmx1024m 
-XX:NewSize=256m -XX:MaxNewSize=256m -XX:PermSize=256m 
-XX:MaxPermSize=256m -XX:+DisableExplicitGC"

Some Info:

  -Xms512m -Xmx1024m`     > heap min and max
    -XX:PermSize=256m  -XX:MaxPermSize=256m > permgen min and max

Upvotes: 1

Joshua Moore
Joshua Moore

Reputation: 24776

I'm not familiar with the application in question however there are some suggestions for tuning your Tomcat memory settings for Grails.

I personally have found that learning Grails from the documentation is the best approach. Read it slowly and from beginning to end. There is a lot to understand but if you take your time you will have a great understanding of the framework.

Upvotes: 1

Related Questions