> Can you collect enough measurements for the time series database to be useful? Yes, instrument everything. See http://prometheus.io/docs/practices/instrument

> Can you collect enough measurements for the time series database to be useful? Yes, instrument everything. See http://prometheus.io/docs/practices/instrumentation/#how-to-instrument http://prometheus.io/docs/practices/instrumentation/#how-to-... > I worry that I would have lots of metrics to backup my wrong conclusions. This is not so much a problem with time series as a question of epistemology. Well chosen consoles will help your initial analysis, and after that it's down to correct application of the scientific method. > I also worry that so much irrelevant data would drown out the relevant stuff I've seen many attempts by smart people to try and do automatic correlation of time series to aid debugging. It's never gotten out of the toy stage, as there is too much noise. You need to understand your metrics in order to use them.