Re: [Hawkular-dev] Hawkular Metrics - Roadmap
On Mar 16, 2016, at 4:03 AM, Heiko W.Rupp <hrupp(a)redhat.com>
wrote:
Hey Stefan,
On 15 Mar 2016, at 21:00, Stefan Negrea wrote:
> * Add support for metrics baselines; automatically computed
> server-side and stored
How? What is the algorithm behind? Please remember that the
algorithm from RHQ is/was flawed.
The algorithm was indeed flawed, but I think the feature could be a big one. For those not
familiar, in RHQ we used averages.
http://apmblog.dynatrace.com/2012/11/14/why-averages-suck-and-percentiles...
<http://apmblog.dynatrace.com/2012/11/14/why-averages-suck-and-percentiles...
is a nice article that explains why using averages is not good. I think that adding
support for a histogram metric type that is calculated on the server gets a lot of what we
need.
> 7) ElasticSearch integration
> * An optional integration with Elastic Search for tasks beyond the
> capability of Cassandra.
> * Basic examples for this are whole tenant searches and aggregation
> of text based data, such as tags, events, and even availability.
How do we deal with the data nodes of ES? Where do
the events of "aggregation of events" come from and
are stored?
What does "whole tenant searches" mean?
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