'Simplest way to reset all values of a Prometheus Gauge to 0
Currently, I'm looping through all the labels and setting their values to 0 manually. I was wondering whether there is less error-prone way.
Context: I'm using a Prometheus Gauge to monitor the maximum number of duplicates found in my data. The data duplication check itself is triggered once on every 4 hours. When the latter happens, all labels' values are reset to 0, then every time I detect duplicates the Gauge's value for the corresponding labels is set to max(previousValue, newValue).
Solution 1:[1]
When I was checking the Prometheus github issues, I stumbles upon this line of code that basically resets the gauge.
YOUR_GAUGE._metrics.clear()
Solution 2:[2]
Confirmed that we can initialize Gauge with
YOUR_GAUSE.clear()
I put it to catch block to handle exception :) Note that, it clears all metrics instead setting 0.
Sources
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Source: Stack Overflow
| Solution | Source |
|---|---|
| Solution 1 | Ron Zhang |
| Solution 2 |