[Hawkular-dev] Sending data to metrics via Pinger - bus? REST?

[John Mazzitelli]

If we are now going to allow metrics and inventory data to be sent over the bus for storage (in addition to REST) we should consider then also updating the wildfly agent to use the bus WHEN EMBEDDED in the server. This would avoid the agent making REST calls to itself (that is, to the same WF server it is running in). Since the agent would be embedded in a full hawkular container, it could just put message on the bus rather than send REST messages. Only when the agent is running standalone or in another external WF should it send REST messages.

BTW: I thought the pinger was throw-away code and was to be re-implemented the "correct" way by the time hawkular GA is released  ;-)

----- Original Message -----
> With the latest update of metrics, it seems that the Pinger is now
> broken: Metrics is now protected via Accounts, meaning that REST calls
> would need to include auth data, which are not available to pinger.
> 
> Pinger is a process that runs on Hawkular server, so, either we would
> need to get a token from users when they first request an URL to be
> monitored, or we would need to somehow send data to Metrics "directly".
> 
> Of course, the bus comes to my mind. I'm sure this was discussed at
> length before, but I just want to catch up on the current state of things.
> 
> My understanding is that Pinger would send a "PingerResult" to a topic,
> where interested parties would be listening. Inventory and Metrics would
> be such parties: a Topic Listener on each of those components would be
> responsible for doing inventory-specific and metrics-specific logic.
> 
> The question, though, is: where would this code reside? Heiko's idea is
> that this would be part of a "glue", ie, a code "somewhere inside
> Hawkular". In my view, the glue is the bus, so, this should reside
> within the component itself. In metrics case, the listener would
> probably be inside the "hawkular-component" module. The code on
> "hawkular-component" would just listen to this topic and call
> MetricsService.
> 
> What would be the most appropriate way to have the pinger's results
> stored in metrics?
> 
> - Juca.
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