9.4 Configuring the JVM arguments

Increase the memory allocation for the JVM of a managed server

1. Start the WebLogic Administration Console by typing http://[hostname]:[port]/console in the URL line of a web browser.

2. Type the user name and password that you created for the WebLogic Server domain and click Login.

3. Under Change Center, click Lock & Edit.

4. Under Domain Structure, click Environment > Servers and, in the right pane, click the managed server name.

5. On the next screen, click the Configuration tab > Server Start tab.

6. In the Arguments box, append this information to the end of the current content:

   • (Solaris using 64-bit JVM) -Xms256m -Xmx1792m -XX:MaxPermSize=512m

     Note: Only Solaris requires setting the MaxPermSize parameter.

   • (Windows, Linux 64-bit) -Xms256m -Xmx1792m

7. To prevent application server from Denial of Service attacks append the following JVM argument:

   -DentityExpansionLimit=10000

8. Click Save and then click Activate Changes.

9. Restart WebLogic managed server.