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8.8. Manually Upgrading the JBoss ON Agent
To ensure compatibility with the JBoss ON server, each agent must be upgraded to the same version of JBoss ON as the server.
Agents have the ability to auto-update themselves. So, under most conditions, it isn't necessary to manually upgrade agents. However, if the auto-update fails for some reason or you disabled agent auto-update, then the agent can be upgraded manually.
Note
All agents must be upgraded at the same time. Having agents of different versions is not supported.
- Shut down the JBoss ON agent.
- Windows only.. If the agent is running as a Windows service, uninstall the Windows service:
cd old-agent-install-dir/bin ./rhq-agent-wrapper.bat remove
cd old-agent-install-dir/bin ./rhq-agent-wrapper.bat removeCopy to Clipboard Copied! Toggle word wrap Toggle overflow - Upgrade the JBoss ON server, as in Section 3.8.1, “Upgrading the JBoss ON Server”. The JBoss ON server must be upgraded before any agents are upgraded.
- Restart the upgraded JBoss ON servers if they are not yet started.
- Download the agent update binary from the server.
- Copy the agent update binary JAR file into the parent directory where the agent is installed. For example:
cp agent-update-binary.jar /opt/rhq-agent
cp agent-update-binary.jar /opt/rhq-agentCopy to Clipboard Copied! Toggle word wrap Toggle overflow - Extract the new JBoss ON agent from the agent update binary by running the following command:
java -jar agent-update-binary.jar --update=agent_installation_directory
java -jar agent-update-binary.jar --update=agent_installation_directoryCopy to Clipboard Copied! Toggle word wrap Toggle overflow This will tell the agent update binary to extract the JBoss ON agent distribution and update the current agent that is found inrhq-agentsubdirectory. At this point, the upgraded JBoss ON agent is located in the originalrhq-agentdirectory. The old agent has been backed up to therhq-agent-olddirectory. Any upgrade errors are written to the agent's log files. - Finally, start the JBoss ON agent.
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