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What is it?
The Geronimo monitoring plug-in is broken down between a server and client side, providing the ability for both local and remote monitoring and historical tracking of any exposed JSR77 compliant statistic.
The server plug-in can be deployed headless on an instance of Geronimo requiring no administrative console able to be polled by the client plug in from any instance of Geronimo that can communicate with it.
Conversely, the client plug-in, which requires the Geronimo administrative console, can connect to multiple server plug-ins across multiple instances of Geronimo, allowing centralized monitoring of statistics on a multitude of machines.
What can I monitor?
From within the client plug-in in the administrative console, it is possible to define a connection to any instance of Geronimo that has the monitoring server plug-in deployed. Furthermore, any MBean deployed on the server instance that provides statistics can be historically tracked, allowing for graph generation from any statistic element exactly as defined.