Increase permgen space

Question

I am working with tomcat 6 0  and while I am indexing  not while i am starting tomcat   I have a permgen space error  How could I increase that space    Thanks

User · Answer

For tomcat you can increase the permGem space by using

 -XX:MaxPermSize=128m

For this you need to create (if not already exists) a file named setenv.sh in tomcat/bin folder and include following line in it

   export JAVA_OPTS="-XX:MaxPermSize=128m"

Reference : http://wiki.razuna.com/display/ecp/Adjusting+Memory+Settings+for+Tomcat

User · Answer

On Debian-like distributions you set that in  etc default tomcat 67

User · Answer

if you found out that the memory settings were not being used and in order to change the memory settings  I used the tomcat7w or tomcat8w in the  bin folder Then the following should pop up     Click the Java tab and add the arguments restart tomcat

User · Answer

You can use    -XX MaxPermSize 128m   to increase the space  But this usually only postpones the inevitable   You can also enable the PermGen to be garbage collected  -XX  UseConcMarkSweepGC -XX  CMSPermGenSweepingEnabled -XX  CMSClassUnloadingEnabled   Usually this occurs when doing lots of redeploys  I am surprised you have it using something like indexing  Use virtualvm or jconsole to monitor the Perm gen space and check it levels off after warming up the indexing   Maybe you should consider changing to another JVM like the IBM JVM  It does not have a Permanent Generation and is immune to this issue

User · Answer

You can also increase it via the VM arguments in your IDE  In my case  I am using Tomcat v7 0 which is running on Eclipse  To do this  double click on your server  Tomcat v7 0   Click the  Open launch configuration  link  Go to the  Arguments  tab  Add -XX MaxPermSize 512m to the VM arguments list  Click  Apply  and then  OK   Restart your server

[java] Increase permgen space

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