Pre-Upgrade Tasks

Before you upgrade Message Queue, perform the procedures described in the following sections.

Upgrading Message Queue Dependencies

All Java ES 4 components on a computer system and in a computing environment should be upgraded to Java ES 5. However, because Message Queue does not require upgrading the Java ES 4 components upon on which it depends, this task is optional.

However, if you choose to upgrade all Message Queue dependencies, they should be upgraded in the following order, all before you upgrade Message Queue. You can skip any items that might already have been upgraded.

• Shared Components. Release 5 installer automatically installs all required shared components in the parallel path..

• Directory Server (optional). Instructions for upgrading Directory Server to Java ES 5 are provided in Chapter 2, Directory Server.

• Web Container Software (optional). Instructions for upgrading Web Server or Application Server are provided in Chapter 4, Web Server and Chapter 6, Application Server respectively.

To Verify Current Version Information

Start the Message Queue broker with -version option.

imqbrokerd -version

The outputs that indicate the Message Queue version are:

Release 5

Sun Java System Message Queue 3.7 UR1

Release 4

Sun Java System Message Queue 3 2005Q4 Version: 3.6 SP3