iapetos.collector.fn — iapetos 0.1.8

initialize clj

(initialize registry)

Enable function instrumentalization by registering the metric collectors. Metrics include:

• fn_duration_seconds: a histogram of execution duration,
• fn_last_failure_unixtime: a gauge with the last failure timestamp,
• fn_runs_total: a counter for fn runs, split by success/failure,
• fn_exceptions_total: a counter for fn exceptions, split by class.

instrument! clj

(instrument! registry fn-var)

(instrument! registry
             fn-var
             {:keys [fn-name exceptions? duration? last-failure? run-count?]
              :or {fn-name (subs (str fn-var) 2)}
              :as options})

wrap-instrumentation clj

(wrap-instrumentation
  f
  registry
  fn-name
  {:keys [duration? exceptions? last-failure? run-count?]
   :or {duration? true exceptions? true last-failure? true run-count? true}})

Wrap the given function to write a series of execution metrics to the given registry. See initialize.