[Hawkular-dev] Proposing closer integration of APM and "Hawkular metrics" on Kubernetes / OpenShift

[Gary Brown]

Agree - the most important aspect of the proposal is the ability for a user to navigate between the two types of information in the UI.

Having a common collection mechanism may simplify the infrastructure, but in this respect the greater benefit would be convergence on Cassandra at the backend - which is something we (APM team) will be investigating.

Regards
Gary

----- Original Message -----
> From the outside looking in, this proposal seems to assume monitoring/metrics
> are similar enough to APM traces that they can and should converge in a
> single collection system. Whereas I would have expected the proposal was to
> combine the in the presentation/UI *after* collection. Am I
> misunderstanding?  Because I would have thought the characteristics of these
> systems would be unique enough to stay separate, e.g. the traffic rates for
> metrics vs traces would be different, the ‘schema’ of what needs to be
> forwarded and stored is different, and for sure the APM traces need to be
> correlated based on their trace IDs and otherwise filtered based on somewhat
> arbitrary tags supplied in the instrumentation.
> 
> 
> 
> > On Feb 27, 2017, at 8:58 AM, John Mazzitelli <mazz at redhat.com> wrote:
> > 
> >> *b) I think it would make sense to always use the Prometheus protocol (and
> >> Hosa may learn how to use the more efficient binary protocol)
> > 
> > If you are referring to the Prometheus binary exposition format [1] (aka
> > content type of "application/vnd.google.protobuf;
> > proto=io.prometheus.client.MetricFamily; encoding=delimited" as opposed to
> > "text/plain"), HOSA already supports this - it can read any Prometheus
> > endpoint that exposes metric data in either the text or binary format.
> > 
> > See the source code [2] and a test [3] that shows this working.
> > 
> > [1] https://prometheus.io/docs/instrumenting/exposition_formats/
> > [2]
> > https://github.com/hawkular/hawkular-openshift-agent/blob/master/prometheus/prometheus_scraper.go#L69-L78
> > [3]
> > https://github.com/hawkular/hawkular-openshift-agent/blob/master/prometheus/prometheus_scraper_test.go#L155-L164
> > 
> > _______________________________________________
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> 
> 
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