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Add metric types for prometheus

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junv
2019-01-02 11:32:59 +11:00
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@@ -23,8 +23,18 @@ It's a online web services, it gives you ability to do ping to your website from
# Monitor
- Bosun
- Prometheus
## Bosun
## Prometheus
### Prometheus Metric types
* Counter, A counter is a cumulative metric that represents a single monotonically increasing counter whose value can only increase or be reset to zero on restart. For example, you can use a counter to represent the number of requests served, tasks completed, or errors. Do not use a counter to expose a value that can decrease.
* A gauge is a metric that represents a single numerical value that can arbitrarily go up and down.
Gauges are typically used for measured values like temperatures or current memory usage, but also "counts" that can go up and down, like the number of running goroutines.
* A histogram samples observations (usually things like request durations or response sizes) and counts them in configurable buckets. It also provides a sum of all observed values.
* Summary, Similar to a histogram, a summary samples observations (usually things like request durations and response sizes). While it also provides a total count of observations and a sum of all observed values, it calculates configurable quantiles over a sliding time window.
# API