Linux: Configuring a developer mode environment
Use a developer mode environment to improve startup performance and to configure IBM® WebSphere® Portal for development. The developer mode environment is for a development environment only. Do not use the developer mode environment as your production environment. You can also run the optimize-derby-database task to improve the Derby database performance.
Before you begin
About this task
This task modifies the following components:
- JVM
- The JVM is switched to development mode. This setting is a WebSphere Application Server specific setting independent of WebSphere Portal. See the Application server setting topic in the related information section for exact changes that are made with this setting. The initial heap size is set to 768 MB to reduce the amount of garbage collection during startup.
- Portlets
- Portlets and web applications are activated on first access and
not at the startup. However, some of the portlets and applications
are required at startup. Create a white list, which contains the list
of applications, that are required at startup.Note: To add applications to the white list, modify the wp_profile_root/PortalServer/config/StartupPerformance/wp.base_TargetMapExclList.properties file. Add a line such as App_name, where App_name is the name of the application. Log on to the WebSphere Integrated Solutions Console and go to to get a list of available applications.
Procedure
What to do next
Note: You can run
the disable-develop-mode-startup-performance task
for the following scenarios:
- When you are done developing your portal and portlets.
- If the development settings are not adequate for a special development situation.
- When you cannot re-create a problem on the development server.