Popular guidelines

How do I resolve out of memory error in WebLogic?

author 0

How do I resolve out of memory error in WebLogic?

By default the Xms and Xmx values set by WebLogic server are : 256m and 512m. Looks like your application needs more than 512MB heap memory. So you need to increase the maximum heap size (Xmx) to avoid frequent OutOfMemory error. The new value of Xmx can be 1024m or more.

How do I increase PermGen space in WebLogic?

To set PermGen size you can use e.g. -XX:PermSize=512m -XX:MaxPermSize=512m . Regarding Weblogic, set the JAVA_OPTIONS and see if these options are properly passed in as parameters into your Java process. You can also directly set these parameters in the startWeblogic.

What causes PermGen space error?

The OutOfMemoryError: PermGen Space error occurs when the permanent generation heap is full. Although this error can occur in normal circumstances, usually, this error is caused by a memory leak.

How do I fix Java Lang OutOfMemoryError PermGen space?

To fix it, increase the PermGen memory settings by using the following Java VM options. -XX:PermSize – Set initial PermGen Size. -XX:MaxPermSize – Set the maximum PermGen Size. In the next step, we will show you how to set the VM options in Tomcat, under Windows and Linux environment.

What is PermGen space in WebLogic?

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. lang. OutOfMemoryError: PermGen space. This area can be regulated using -XX:PermSize and -XX: …

What is garbage collection in WebLogic?

Memory management, known as “garbage collection” is the process of clearing “dead” objects from the heap, thus releasing that space for new objects. WebLogic JRockit JVM Garbage Collectors.

What is PermGen space in Weblogic?

What is PermGen space?

lang. OutOfMemoryError: PermGen Space is a runtime error in Java which occurs when the permanent generation (PermGen) area in memory is exhausted. The PermGen area of the Java heap is used to store metadata such as class declarations, methods and object arrays.

What is Java Lang OutOfMemoryError PermGen space?

How do I increase PermGen space in Jboss?

Windows

  1. Edit bin\standalone.conf.bat.
  2. Change the MaxPermSize as per your requirement and save the file: set “JAVA_OPTS=-Xms64M -Xmx512M -XX:MaxPermSize=256M”
  3. Restart Jboss.

What is JRockit in WebLogic?

WebLogic JRockit is the default production JVM shipped with WebLogic Server, although you can use another VM, such as Sun Microsystem’s HotSpot JVM as a development VM. To ensure that WebLogic JRockit is the JVM running with your instance of WebLogic Server, at the command line, type: java -showversion.

How can check JVM heap size in WebLogic console?

The size is set in the setDomainEnv.sh file for Linux or setDomainEnv. cmd for Windows, which is in the $DOMAIN_HOME/bin directory….Checking Heap Usage:

  1. Expand your WebLogic domain then expand Servers.
  2. Click the server you intend to monitor.
  3. Select the Monitoring tab, and the Performance sub-tab.

How do I change the memory settings of WebLogic?

You can try by changing the memory settings of weblogic in your server. * Go to – \\Middleware\ser_projects\\domains\\fms_domain\\bin\\setDomainEnv.cmd* Open the file * Change the settings

How to set permgen size in Java?

To set PermGen size you can use e.g. -XX:PermSize=512m -XX:MaxPermSize=512m. Regarding Weblogic, set the JAVA_OPTIONS and see if these options are properly passed in as parameters into your Java process. You can also directly set these parameters in the startWeblogic.cmd script.

What is permgen in JVM?

PermGen is a non-heap memory area where the Class Loading happens and the JVM allocates spaces for classes, class meta data, java methods and the reference Objects here. The PermGen is independent from the Heap Area.

How to set permgensize and maxpermsize?

To set PermGensize you can use e.g. -XX:PermSize=512m -XX:MaxPermSize=512m. Regarding Weblogic, set the JAVA_OPTIONS and see if these options are properly passed in as parameters into your Java process. You can also directly set these parameters in the startWeblogic.cmdscript.

author

Back to Top