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5.3. Resources That Require Additional Configuration for Discovery
There are some resource types which require specific configuration for the resource or for the JBoss ON agent in order for them to be discovered.
5.3.1. Configuring the Agent to Discover EAP 6 Instances
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As covered in Chapter 4, Interactions with System Users for Agents and Resources, the system user as which the agent runs has a direct effect on how the agent can manage certain resource types. For EAP instances, the agent's system user must have the appropriate permissions to be able to manage EAP resources:
- The agent must have read permissions to the
run.jarfile, plus execute and search permissions for every directory in the path to therun.jarfile. - When a JBoss EAP 6 instance is installed from an RPM, the agent user must belong to the same system group which runs the EAP instance. This is
jboss, by default.
Tomcat servers are discovered automatically on Linux and Unix systems, but they require additional configuration before they can be discovered on Windows systems.
- Run
regedit. - Navigate to Java preferences key for the Tomcat server,
HKEY_LOCAL_MACHINE\SOFTWARE\Apache Software Foundation\Procrun2.0\TomcatVer#\Parameters\Java. - Edit the Options attribute, and add these parameters:
-Dcom.sun.management.jmxremote.port=9876 -Dcom.sun.management.jmxremote.ssl=false -Dcom.sun.management.jmxremote.authenticate=false
-Dcom.sun.management.jmxremote.port=9876 -Dcom.sun.management.jmxremote.ssl=false -Dcom.sun.management.jmxremote.authenticate=falseCopy to Clipboard Copied! Toggle word wrap Toggle overflow - Restart the Tomcat service.
After a few minutes, the Tomcat instance should show up in the Discovery Queue.
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