3.5 Increase JVM Memory

Oracle recommends a minimum Java Virtual Machine (JVM) setting of 2048M instead of the default size of 512M.

You must make this change through Oracle Applications Manager. If you do it manually, your changes will be lost when you run AutoConfig.

To increase this setting, do the following:

1. Open your web browser.
2. Enter the eBusiness Suite SSWA (Self-Service Web Application) URL as follows:

   http://<host name>.<domain name>:<HTTP port>/OA_HTML/AppsLogin

   For example:

   http://host_0066.example.com:8000/OA_HTML/AppsLogin

   The Applications Login screen appears.

3. Log in as sysadmin.

   An E-Business Suite screen opens.

4. Click System Administration in the left-hand column under Navigator. The system refreshes the page and adds a column of links on the right.
5. Under Oracle Applications Manager in the Navigator pane, click Dashboard. The Applications Dashboard screen opens.
6. Click Sitemap to go to the Sitemap tab.
7. Under System Configuration, click AutoConfig. The AutoConfig screen opens.
8. Under Context Files, click the Edit Parameters icon for the Application Tier. The Context File Parameters screen opens.
9. From the Search drop-down list, select OA_VAR.
10. In the field next to the Search drop-down list, enter the parameter name s_oacore_jvm_start_options and click Go.
11. In the Value field for s_jvm_options, change the value from:

    -Xmx512M -Xms128M -XX:MaxPermSize=128M -XX:NewRatio=2 -XX:+PrintGCTimeStamps -XX:+UseTLAB

    to:

    -Xmx2048M -Xms128M -XX:MaxPermSize=128M -XX:NewRatio=2 -XX:+PrintGCTimeStamps -XX:+UseTLAB

    Note the changed value is in bold above.

12. Run AutoConfig. See My Oracle Support article 387859.1, Using AutoConfig to Manage System Configurations in Oracle E-Business Suite Release 12.
13. Stop and start the Apache server for the new value to take effect.