Commit Graph

29 Commits

Author SHA1 Message Date
Erik Johnston
d7bf3a68f0 s/list/tuple 2018-04-12 11:19:04 +01:00
Erik Johnston
ab825aa328 Add GaugeMetric 2018-04-11 12:13:40 +01:00
Richard van der Hoff
bc496df192 report metrics on number of cache evictions 2018-02-05 15:34:01 +00:00
Richard van der Hoff
ce236f8ac8 better exception logging in callbackmetrics
when we fail to render a metric, give a clue as to which metric it was
2018-01-18 11:30:49 +00:00
Richard van der Hoff
992018d1c0 mechanism to render metrics with alternative names 2018-01-15 17:04:39 +00:00
Richard van der Hoff
80fa610f9c Add some comments to metrics classes 2018-01-15 16:52:52 +00:00
Richard van der Hoff
19d274085f Make Counter render floats
Prometheus handles all metrics as floats, and sometimes we store non-integer
values in them (notably, durations in seconds), so let's render them as floats
too.

(Note that the standard client libraries also treat Counters as floats.)
2018-01-12 23:49:44 +00:00
Paul "LeoNerd" Evans
b21b9dbc37 Callback metric values might not just be integers - allow floats 2016-10-19 15:05:15 +01:00
Erik Johnston
7c1a92274c Make psutil optional 2016-08-08 11:12:21 +01:00
Erik Johnston
d36b1d849d Don't explode if we have no snapshots yet 2016-07-20 16:59:52 +01:00
Erik Johnston
66868119dc Add metrics for psutil derived memory usage 2016-07-20 16:00:21 +01:00
Erik Johnston
73c7112433 Change CacheMetrics to be quicker
We change it so that each cache has an individual CacheMetric, instead
of having one global CacheMetric. This means that when a cache tries to
increment a counter it does not need to go through so many indirections.
2016-06-03 11:26:52 +01:00
Matthew Hodgson
6c28ac260c copyrights 2016-01-07 04:26:29 +00:00
Paul "LeoNerd" Evans
128cf2daf7 Appease pep8 2015-03-12 16:24:51 +00:00
Paul "LeoNerd" Evans
c1cdd7954d Add an .inc_by() method to CounterMetric; implement DistributionMetric a neater way 2015-03-12 16:24:51 +00:00
Paul "LeoNerd" Evans
f1fbe3e09f Rename TimerMetric to DistributionMetric; as it could count more than just time 2015-03-12 16:24:51 +00:00
Paul "LeoNerd" Evans
cbc0406be8 Export CacheMetric as hits+total, rather than hits+misses, as it's easier to derive hit ratio from that 2015-03-12 16:24:51 +00:00
Paul "LeoNerd" Evans
0e847540c3 Prometheus needs "escaped" label values 2015-03-12 16:24:51 +00:00
Paul "LeoNerd" Evans
22b37b75db Kill unused CounterMetric.fetch() method 2015-03-12 16:24:51 +00:00
Paul "LeoNerd" Evans
b3a0179d64 Bugfix to rendering output of vectored TimerMetrics 2015-03-12 16:24:51 +00:00
Paul "LeoNerd" Evans
f9478e475b Rename Metrics' "keys" to "labels" 2015-03-12 16:24:51 +00:00
Paul "LeoNerd" Evans
a99d6edc05 Neater implementation of metric render methods by pulling out 'render' as a base method that calls self.render_item 2015-03-12 16:24:50 +00:00
Paul "LeoNerd" Evans
72625f2f4d Initial hack at a TimerMetric; for storing counts + duration accumulators 2015-03-12 16:24:50 +00:00
Paul "LeoNerd" Evans
23ab0c68c2 Implement vector CallbackMetrics 2015-03-12 16:24:50 +00:00
Paul "LeoNerd" Evans
849300bc73 Neater introspection methods on BaseMetric so that subclasses don't need to touch self.keys directly 2015-03-12 16:24:50 +00:00
Paul "LeoNerd" Evans
8664599af7 Rename CacheCounterMetric to just CacheMetric; add a CallbackMetric component to give the size of the cache 2015-03-12 16:24:50 +00:00
Paul "LeoNerd" Evans
d8caa5454d Initial attempt at a scalar callback-based metric to give instantaneous snapshot gauges 2015-03-12 16:24:50 +00:00
Paul "LeoNerd" Evans
ce8b5769f7 Create the concept of a cachecounter metric; generating two counters specific to caches 2015-03-12 16:24:50 +00:00
Paul "LeoNerd" Evans
e7420a3bef Initial tiny attempt at (vectorable) counter metrics 2015-03-12 16:24:50 +00:00