PermGen space error - Glassfish Server

Question

I am running java web application using Hibernate and glassfish Server. I am getting

java.lang.OutOfMemoryError: PermGen space exception when after I d

Answer 1

To solve this problem ( in linux based os ) do following

1) increase memory (so that this problem don't come frequently ) by configuring "domain.xml" in

/glassfish/domain/domain1/config

search for

-XX:MaxPermSize=

set it to higher value eg- 198m or 256m

2) kill the glassfish process to free the port on which it was running ( in my case it was 8686) open terminal (in linux based os) and type -

sudo netstat -npl | grep 8686

this will result in something like..

tcp6 0 0 :::8686 :::* LISTEN 3452/java

next use

kill -9 3452 to kill that process ( 3452 in this case )

Now try to start glassfish, it should start.