class Prometheus::Counter

• Prometheus::Counter
• Prometheus::Metric
• Reference
• Object

Overview

A Counter is a cumulative metric that represents a single monotonically increasing counter whose value can only increase or be reset to zero.

Use a Counter for metrics that accumulate values, such as:

• Number of requests served
• Number of tasks completed
• Number of errors

Example:

counter = Counter.new("http_requests_total", "Total HTTP requests")
counter.inc      # Increment by 1
counter.inc(5)   # Increment by 5

NOTE Counter values cannot decrease. Use a Gauge for values that can go up and down.

Defined in:

Instance Method Summary

• #collect : Array(Sample)
• #inc(value : Number = 1)
• #type : String
• #value : Float64

Instance Method Detail