<html><head><meta http-equiv="Content-Type" content="text/html charset=utf-8"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" class=""><br class=""><div><blockquote type="cite" class=""><div class="">On Mar 16, 2016, at 4:03 AM, Heiko W.Rupp <<a href="mailto:hrupp@redhat.com" class="">hrupp@redhat.com</a>> wrote:</div><br class="Apple-interchange-newline"><div class="">Hey Stefan,<br class=""><br class="">On 15 Mar 2016, at 21:00, Stefan Negrea wrote:<br class=""><br class=""><blockquote type="cite" class=""> * Add support for metrics baselines; automatically computed <br class="">server-side and stored<br class=""></blockquote><br class="">How? What is the algorithm behind? Please remember that the<br class="">algorithm from RHQ is/was flawed.<br class=""></div></blockquote><div><br class=""></div><div>The algorithm was indeed flawed, but I think the feature could be a big one. For those not familiar, in RHQ we used averages. <a href="http://apmblog.dynatrace.com/2012/11/14/why-averages-suck-and-percentiles-are-great/" class="">http://apmblog.dynatrace.com/2012/11/14/why-averages-suck-and-percentiles-are-great/</a> 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.</div><br class=""><blockquote type="cite" class=""><div class=""><br class=""><blockquote type="cite" class="">7) ElasticSearch integration<br class=""> * An optional integration with Elastic Search for tasks beyond the <br class="">capability of Cassandra.<br class=""> * Basic examples for this are whole tenant searches and aggregation <br class="">of text based data, such as tags, events, and even availability.<br class=""></blockquote><br class="">How do we deal with the data nodes of ES? Where do<br class="">the events of "aggregation of events" come from and<br class="">are stored?<br class="">What does "whole tenant searches" mean?<br class=""><br class="">-- <br class="">Reg. Adresse: Red Hat GmbH, Technopark II, Haus C,<br class="">Werner-von-Siemens-Ring 14, D-85630 Grasbrunn<br class="">Handelsregister: Amtsgericht München HRB 153243<br class="">Geschäftsführer: Paul Argiry, Charles Cachera, Michael Cunningham, <br class="">Michael O'Neill<br class="">_______________________________________________<br class="">hawkular-dev mailing list<br class=""><a href="mailto:hawkular-dev@lists.jboss.org" class="">hawkular-dev@lists.jboss.org</a><br class="">https://lists.jboss.org/mailman/listinfo/hawkular-dev<br class=""></div></blockquote></div><br class=""></body></html>