OpMon for drunc

[PawelPlesniak]

Here is a minimal list of metrics we need from drunc. Basically it corresponds to the overall quantities that are reported by the main dashboard.

• State of the system (FSM state)
• Global error state
• Run Time
• Run Number
• Configuration used

Once drunc has a complete interface with opmon, every drunc instance should publish metric related to its operations. A naive list that is supposed to be a suggestion to be elaborated and expanded by expert is

• status (of the controllers rather than the FSM state)
• Number of message exchanged, including its success rate, message sizes, etc
• Number of applications alive (both daq app and drunc app)
• number of rebooted applications (very long term concept, available once we have some recovery capability in place)