Administrative tasks

This chapter describes how to perform some specific administrative tasks on HCL Workload Automation, as follows:
The tasks
Switching a domain manager
Change a domain manager or dynamic domain manager, either in the event of the failure of the computer where it is installed, or as part of a planned replacement activity.
Switching the master to a backup
Change a master domain manager, either in the event of the failure of the computer where it is installed, or as part of a planned replacement activity.
Changing key HCL Workload Automation passwords
Change the password of the TWS_user, or any other of the users that have an infrastructure role in HCL Workload Automation.
Unlinking and stopping HCL Workload Automation
The correct procedure to unlink the master domain manager from its agents and stop the master processing.
Changing the properties for the database
If you need to change the host, port or name of the database, effect the change in the application server, where the data source configuration is maintained.
Changing the workstation host name or IP address
Change the host name or IP address of a workstation.
Changing the security settings
If you need to update the properties that define your SSL connection or authentication mechanism, you need to make the changes in the WebSphere Application Server Liberty Base
Managing the event processor
If you are using event-driven workload automation, you will need to perform periodic maintenance on the event processor.
Application server tasks
The following tasks might need to be performed on the application server:
Application server - starting and stopping
How to stop and start the application server when you need to.
Application server - automatic restart after failure
The application server is managed by a utility that restarts it if it stops for any reason (subject to a configurable policy). This section describes how to modify the policy and deal with any situations that the policy cannot handle.
Application server - encrypting the profile properties files
Several of the application server configuration files contain passwords. To avoid that these remain in the files in plain text, run a utility to encrypt them.
Application server - configuration files backup and restore
The application server configuration manages the data source and security aspects of your HCL Workload Automation environment. The files should be regularly backed up and when necessary can be restored.
Application server - changing the host name or TCP/IP ports
If you need to change the host or ports used by the application server, follow the correct procedure.
Application server - changing the trace properties
The application server has a trace facility. This section describes how to increase the trace level to obtain more information for troubleshooting, and how to reduce the level to improve performance.
Changing the application server properties
Several of the above tasks require you to run a common procedure based on templates whereby you:
  1. Copy the template file from the templates folder to a working folder.
  2. Edit the template file in the working folder with the desired configuration.
  3. Optionally, create a backup copy of the relevant configuration file present in the overrides directory in a different directory. Ensure you do not copy the backup file in the path where the template files are located.
  4. Copy the updated template file to the overrides folder. Maintaining the original folder structure is not required.
  5. Changes are effective immediately.
This procedure is fully described in Configuring HCL Workload Automation using templates.