Starting CA Harvest SCM As A Service on Linux
Article ID: 39420
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Products
Issue/Introduction
Introduction:
The CA Harvest SCM Broker and Agent components are normally started from a command prompt window and will execute until they are manually shut down or the computer restarts. After restarting the computer, you would normally need to open a new command prompt window and start these components again manually. In a production environment this is not always practical or convenient, so the Harvest SCM Administrator must devise a way to have these components automatically restart if the computer is shut down and restarted. This article describes one way to accomplish this type of configuration on a Linux operating system.
Background:
The example scripts shown here assume the default installation of CA Harvest SCM where all components are installed to the folders indicated in the Implementation Guide and the userid created to “own” the CA Harvest SCM installation folders is named “cascm”. Your environment may differ in some of these details and if so you should adjust the scripts accordingly. You will need root access to your Harvest SCM Broker computer and a knowledge of Unix shell scripting concepts to implement these suggestions.
It is simplest if all these steps are executed as the “root” user.
Environment
CA Harvest SCM on the Linux platform
Resolution
Instructions:
- Create a script to set the environment for CA Harvest SCM
- Use the “vi” editor to create a file called "/home/cascm/set_cascm_env.sh" (click the link to see the example script)
- Set permissions on this file to make it executable
chmod –R 755 /home/cascm/set_cascm_env.sh
- Set ownership of this file to the “cascm” user
chown -R cascm:cascm /home/cascm/set_cascm_env.sh
- Create scripts to perform all the actions needed during startup and shutdown
- Create a directory "/home/cascm/scripts" in which to store the new scripts
- Use the “vi” editor to create a file called “/home/cascm/scripts/startbroker.sh” (click the link to see the example script)
- Use the “vi” editor to create a file called “/home/cascm/scripts/stopbroker.sh” (click the link to see the example script)
- Use the “vi” editor to create a file called “/home/cascm/scripts/startagent.sh” (click the link to see the example script)
- Use the “vi” editor to create a file called “/home/cascm/scripts/stopagent.sh” (click the link to see the example script)
- Set permissions on this folder to make the scripts executable and the resulting log file writable
chmod –R 755 /home/cascm/scripts
- Set ownership of this folder and its contents to the “cascm” user
chown -R cascm:cascm /home/cascm/scripts
- Create the service controller script
- Use the “vi” editor to create a file called “/etc/init.d/cascm” (click the link to see the example script)
- Set permissions on this file to make it executable
chmod 750 /etc/init.d/cascm
- Register the service with the operating system
chkconfig --add cascm
- Test the service
- To start the service:
service cascm start
- To stop the service:
service cascm stop
Additional Information
NOTE: These example script files are saved in "Unix" format and may be best viewed on a Windows platform with Wordpad, Notepad++ or Textpad.)
NOTE: The example scripts included with this article are offered on an as-is basis and are not guaranteed to work on every platform and version. They are distributed with the understanding that they will be used at your own risk. Additionally we recommend you test thoroughly in a sandbox test environment before implementing in production.
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