RFC for Telemetry data collection

[Deepak Kodihalli]

On 08/09/17 6:46 am, Brad Bishop wrote:
> Hi Tom
> 
> I don’t really disagree with anything you wrote…I’m just throwing out some additional thoughts.
> 
> I would propose that we:
> 
> 1 - Add support to the REST server to subscribe to DBus signals, and simply forward the signal content in JSON format out over a websocket.  This allows an external user to get any async notification that any code running on the BMC can get.  I have a lot of questions on specifics here but I’ll save those for later, in case this doesn’t work out.

Brad, that sounds fine to me in terms of how a notification can be sent, 
although Tom's proposal also talked about describing in yaml, how 
frequently to read something off of a, say a d-bus object representing a 
sensor. If I understood correctly, are you saying instead of doing this 
every X hours or seconds, we send out a notification whenever a 
PropertyChanged d-bus signal is caught? And let an off-BMC application 
bother about averages, min/max?


Regards,
Deepak