Metric Gauge
A gauge is a metric type that tracks a single numerical value that can both increase and decrease over time. Gauges are commonly used to measure current state values such as temperature, memory usage, or the number of active connections. Unlike counters that only increase, gauges provide visibility into metrics that fluctuate during normal operation.
A gauge is a metric that represents a single numerical value that can increase or decrease.
Gauges typically represent measured values, like temperatures or current memory usage; you can also use them for counts that can go up and down, like the number of concurrent requests.
See the functions you can use with gauge metrics.