View Source TelemetryMetricsLogger (telemetry_metrics_logger v0.1.3)
A reporter that prints events to the Logger
.
This module aggregates and prints metrics information at a configurable frequency.
For example, imagine the given metrics:
metrics = [
last_value("vm.memory.binary", unit: :byte),
counter("vm.memory.total"),
summary("phoenix.endpoint.stop.duration", unit: {:native, :millisecond})
]
A this reporter can be started as a child of your supervision tree like this:
{TelemetryMetricsLogger, metrics: metrics, reporter_options: [interval: 60]}
Then, every sixty seconds, you will see a report like this:
12:31:54.492 [info] Telemetry report 2020-11-09T17:48:00Z
Event [:vm, :memory]
Measurement "binary"
Last value: 100 B
Measurement "total"
Counter: 1
Event [:phoenix, :endpoint, :stop]
Measurement "duration"
Summary:
Average: 101 ms
Min: 52 ms
Max: 127 ms
Summary
Functions
Returns a specification to start this module under a supervisor.