bc496df192
report metrics on number of cache evictions
2018-02-05 15:34:01 +00:00
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
992018d1c0
mechanism to render metrics with alternative names
2018-01-15 17:04:39 +00:00
80fa610f9c
Add some comments to metrics classes
2018-01-15 16:52:52 +00:00
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
b21b9dbc37
Callback metric values might not just be integers - allow floats
2016-10-19 15:05:15 +01:00
7c1a92274c
Make psutil optional
2016-08-08 11:12:21 +01:00
d36b1d849d
Don't explode if we have no snapshots yet
2016-07-20 16:59:52 +01:00
66868119dc
Add metrics for psutil derived memory usage
2016-07-20 16:00:21 +01:00
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
6c28ac260c
copyrights
2016-01-07 04:26:29 +00:00
128cf2daf7
Appease pep8
2015-03-12 16:24:51 +00:00
c1cdd7954d
Add an .inc_by() method to CounterMetric; implement DistributionMetric a neater way
2015-03-12 16:24:51 +00:00
f1fbe3e09f
Rename TimerMetric to DistributionMetric; as it could count more than just time
2015-03-12 16:24:51 +00:00
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
0e847540c3
Prometheus needs "escaped" label values
2015-03-12 16:24:51 +00:00
22b37b75db
Kill unused CounterMetric.fetch() method
2015-03-12 16:24:51 +00:00
b3a0179d64
Bugfix to rendering output of vectored TimerMetrics
2015-03-12 16:24:51 +00:00
f9478e475b
Rename Metrics' "keys" to "labels"
2015-03-12 16:24:51 +00:00
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
72625f2f4d
Initial hack at a TimerMetric; for storing counts + duration accumulators
2015-03-12 16:24:50 +00:00
23ab0c68c2
Implement vector CallbackMetrics
2015-03-12 16:24:50 +00:00
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
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
d8caa5454d
Initial attempt at a scalar callback-based metric to give instantaneous snapshot gauges
2015-03-12 16:24:50 +00:00
ce8b5769f7
Create the concept of a cachecounter metric; generating two counters specific to caches
2015-03-12 16:24:50 +00:00
e7420a3bef
Initial tiny attempt at (vectorable) counter metrics
2015-03-12 16:24:50 +00:00
Richard van der Hoff