Deployment Settings

Deployment settings can have significant impact on performance. Follow these guidelines when configuring deployment settings for best performance:

• Disable Auto-Deployment

• Use Pre-compiled JavaServer Pages

• Disable Dynamic Application Reloading

Disable Auto-Deployment

Enabling auto-deployment will adversely affect deployment, though it is a convenience in a development environment. For a production system, disable auto-deploy to optimize performance. If auto-deployment is enabled, then the Reload Poll Interval setting can have a significant performance impact.

To enable or disable auto-deployment from the GlassFish Server Administration Console, navigate to the Domain node and then click the Applications Configuration tab. Refer to the Administration Console for further instructions. Alternatively, refer to To Deploy an Application or Module Automatically in Oracle GlassFish Server 3.1 Application Deployment Guide for instructions on enabling or disabling auto-deployment.

Use Pre-compiled JavaServer Pages

Compiling JSP files is resource intensive and time consuming. Pre-compiling JSP files before deploying applications on the server will improve application performance. When you do so, only the resulting servlet class files will be deployed.

You can specify to precompile JSP files when you deploy an application through the Administration Console or deploy subcommand. You can also specify to pre-compile JSP files for a deployed application with the Administration Console. Navigate to the Domain node and then click the Applications Configuration tab. Refer to the Administration Console for further instructions.

Disable Dynamic Application Reloading

If dynamic reloading is enabled, the server periodically checks for changes in deployed applications and automatically reloads the application with the changes. Dynamic reloading is intended for development environments and is also incompatible with session persistence. To improve performance, disable dynamic class reloading.

You can use the Administration Console to disable dynamic class reloading for an application that is already deployed. Navigate to the Domain node and then click the Applications Configuration tab. Refer to the Administration Console for further instructions.