Re: [Hawkular-dev] Labeling needs ?
On 31 Oct 2016, at 22:59, Matt Wringe wrote:
> * Post-tagging of data points (tagging could be provoked by
> another
> system that e.g. parses log files and sees an anomaly) The idea
> behind
> it is that one should be able to create tags at certain points in
> time
> for a single metric or a list of metrics to uniquely identify
> that point
> in time for queries (relative performance of two versions of a
> deployment).
This feels like an 'event' what could be marked. I don't know if it
needs to be applied to a datapoint directly, or stored in a separate
list, or if it even needs to be stored in Hawkular Metrics.
While I formulated it as it has to be on a (set of) datapoints,
this does not imply any technical implementation.
You are absolutely right, that this could be a separate
map < label, < timestamp, set <metrics>>>
to record the time it applies and the affected metrics.
The main thing I think is to be able to query the list of events
which
have occurred over a specific time frame.
Exactly. And to be able to get metric data in a from-label
to-label (or 'til-now' or '+8h') way
OpenShift has a lot of events it can gather, it could be really cool
if we could display these events as marks in the graphs. I don't know
if we can use Hawkular Metric string
+1
Do individual data points have tags applied to them? Or only the
overall metric?
There are tags on the metric definitions, but I would not want
to overload them with those "events".
We may want to keep track of historic changes to tags. I know in
OpenShift we store values in tags which can change at any point in
time but I don't believe we can query what the values was at time X.