Changing or adding WAR files

You can change Web application archives (WAR files) on application servers without having to stop the server and start it again.

About this task

[Solaris] [HP-UX] Restriction: The hot deployment and dynamic reloading function is not supported when the product is running on these operating systems. The Java archive (JAR) files within the associated Java Development Kit (JDK) are memory mapped. If these JAR files are updated by the hot deployment and dynamic reloading functionality when they are being used by the Java virtual machine (JVM), the files become inconsistent, which results in an application server crash. When you make changes to an application on these operating systems, do not use the hot deployment and dynamic reloading functionality. Instead, restart the application to reflect the changes.

There are several changes that you can make to WAR files without stopping the server and starting it again.

Important: See Ways to update application files and determine whether hot deployment is the appropriate way for you to update your WAR files. Other ways are easier and hot deployment is appropriate only for experienced users. In some situations, you can use the update wizard of the administrative console to make the changes without having to stop and restart the server.

The following table lists the changes that you can make by manipulating a WAR file on the server where the application is deployed. The table also states whether you use hot deployment or dynamic reloading to make the changes.

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Last updated: Sep 20, 2010 9:00:59 PM CDT
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