4 commits

Author	SHA1	Message	Date
Brian Gough	03e81153db	avoid step effects in summary metrics ... reduce the window size from 10 minutes to 1 minute, so that short spikes do not cause a 10 minute long "table" graph.	2020-03-10 15:01:09 +00:00
Brian Gough	2273978e7b	fix gauge usage	2019-12-16 11:42:10 +00:00
Simon Detheridge	feecda8ea8	Use map instead of hash for metrics	2019-10-28 14:39:53 +00:00
Simon Detheridge	07e4eb4dfb	Add mechanism to expire old prometheus metrics ... Adds a wrapper around the prometheus client, which keeps track of the last time a metrics was accessed, and removes old ones once they have not been accessed for a period of time.	2019-10-23 17:07:45 +01:00