How do I increase PermGen space in WebLogic?

In order to increase your PermGen space to let’s say 512 MB, simply edit the Weblogic commEnv.sh or commEnv. cmd script and change the default from 128m to 512m or add / modify the MaxPermSize to 512m (-XX:MaxPermSize=512m) via the Server Start arguments (as per step #2 Weblogic console snapshot) if using Nodemanager.

How do I increase memory size in WebLogic?

To increase JVM heap size of application server.

  1. Open WebLogic Server Administration Console, navigate to Environment>Servers, select your server, and select Sever Start tab.
  2. Change value of the JVM heap size (-Xmx) parameter to Xmx6500m, and click Save.

How do I resolve out of memory error in WebLogic?

2 Answers

  1. Open setDomainEnv.sh and search for ‘IF USER_MEM_ARGS the environment variable is set’ and in the next line insert USER_MEM_ARGS=”-Xms256m -Xmx1024m”
  2. You can even change this setting from server to server by using SERVER_NAME variable which holds the server that is being started.

What is PermGen space in WebLogic?

JVM & PermGen: Each Managed Server or Admin Server in WebLogic represents a JVM. PermGen is part of Method (non-heap) stores class related data from class definitions, structures, methods, field, method (data and code) and constants. If this area runs out of space then you get an error like java.

How do I fix out of memory heap space in java?

OutOfMemoryError: Java heap space. 1) An easy way to solve OutOfMemoryError in java is to increase the maximum heap size by using JVM options “-Xmx512M”, this will immediately solve your OutOfMemoryError.

What is the maximum memory limit in WebLogic?

The default maximum heap size is -Xms 2 (in megabytes), up to 75% of the physical memory; for example, if -Xms is 8MB, the default maximum heap size will be 8MB2, or 64MB; if -Xms is 128MB, the default maximum heap size would be 1282, or 16384MB (16 GB).

What is XMS and XMX in WebLogic?

Xmx – is the max size of the heap. Xms – is the initial size of the heap.( give it the same as Xmx ) XX:MaxPermSize – is is used to hold reflective of the VM itself such as class objects and method objects ( it’s independent from the heap size,, give it the 1/3 to 1/4 of the Xms size depend in your classes size)

What is WebLogic heap size?

The default JVM heap size for WebLogic is 3GB. The size is set in the setDomainEnv.sh file for Linux or setDomainEnv. cmd for Windows, which is in the $DOMAIN_HOME/bin directory. The heap size is set with the -Xmx option.

What is memory leak in WebLogic?

Memory Leak: A memory leak occurs if memory is used by an application and not released by the application when it is finished with it. A memory leak can occur in either java heap or native memory, and either will eventually cause an out of memory situation.