Upgrading WebSphere Application Server Liberty

Upgrading WebSphere Application Server Liberty to the latest supported version. This is an optional step you might want to perform before you upgrade the Dynamic Workload Console and the server components.

Before you begin

On AIX and Linux workstations, ensure you permanently set the ulimit parameter as follows:

data segment process (option -d) = unlimited
file size (option -f) = unlimited
max user processes (option -u) = >260000 up to unlimited
open files (option -n) = >100000 up to unlimited
max memory size (option -m) = unlimited
stack size (option -s) = >33000 up to unlimited

On the master domain manager, these settings must be applied to:

root
the IBM® Workload Scheduler administrative user

On the Dynamic Workload Console, these settings must be applied to:

root
the Dynamic Workload Console installation user (if this user is different from root)

Ensure that your system meets the operating system and Java requirements. For more information, see WebSphere Application Server Liberty Base detailed system requirements.

About this task

You can quickly install WebSphere Application Server Liberty Base by extracting an archive file on all supported platforms.

Install WebSphere Application Server Liberty Base on all of the following workstations, which comprise a typical installation:

master domain manager
backup domain manager
two Dynamic Workload Console installations on two separate workstations

If you plan to install a dynamic domain manager and its backup, these components require a separate WebSphere Application Server Liberty Base installation.

To extract the archive, you can use your own Java Ext or use the Java Ext provided with the IBM® Workload Scheduler image. The provided Java Ext is located in the following path in the image for your operating system: <IMAGE_DIR>/TWS/<INTERP>/Tivoli_Eclipse_<INTERP>/TWS/JavaExt/.

To install WebSphere Application Server Liberty Base, perform the following steps:

Procedure

Download WebSphere Application Server Liberty Base from Recommended updates for WebSphere Application Server Liberty.

Run the Detailed Software Requirements report and browse to the Prerequisites tab to find the required version of Application Server.
Install WebSphere Application Server Liberty Base by extracting the archive file to a directory of your choice.
On Windows operating systems
```
java -jar <liberty_download_dir>\wlp-base-all-<fix_pack>.jar 
--acceptLicense <install_dir>
```
On UNIX operating systems
```
./java -jar <liberty_download_dir>/wlp-base-all-<fix_pack>.jar 
--acceptLicense <install_dir>
```
where:

<liberty_download_dir>

The directory where you downloaded WebSphere Application Server Liberty Base.

<fix_pack>

The number of the fix pack.

<install_dir>

The directory where you want to install WebSphere Application Server Liberty Base.
Note: Note that the value of the <install_dir> parameter must match the value to be defined for the wlpdir parameter when installing the master domain manager and its backup, dynamic domain manager and its backup, and the Dynamic Workload Console.
Ensure the IBM® Workload Scheduler administrative user has the rights to run WebSphere Application Server Liberty Base and full access to the installation directory. If WebSphere Application Server Liberty Base is shared between the master domain manager and the Dynamic Workload Console, ensure also the Dynamic Workload Console user has the same rights.

Results

You have now successfully installed WebSphere Application Server Liberty Base.

What to do next

You can now proceed to Encrypting passwords (optional) or to Upgrading the Dynamic Workload Console and its database.