April 24, 2026 - A Gauge tracks a value that can go up and down. Use it for things you sample at a point in time — active connections, queue depth, memory usage, temperature. from prometheus_client import Gauge g = Gauge('my_inprogress_requests', 'Description of gauge') g.inc() # Increment by 1 g.dec(10) ...

Resets the value of the gauge identified by spec. Raises Prometheus.UnknownMetricError exception if a gauge for spec can't be found.<br> Raises Prometheus.InvalidMetricArityError exception if labels count mismatch. Sets the gauge identified by spec to value.

January 30, 2026 - Track resource usage as a percentage or absolute value. from prometheus_client import Gauge import psutil cpu_usage = Gauge( 'system_cpu_usage_percent', 'Current CPU usage percentage', ['cpu'] ) memory_usage_percent = Gauge( 'system_memory_usage_percent', 'Current memory usage percentage' ) disk_usage = Gauge( 'system_disk_usage_bytes', 'Current disk usage in bytes', ['mount_point'] ) def collect_system_metrics(): # CPU per core for i, percent in enumerate(psutil.cpu_percent(percpu=True)): cpu_usage.labels(cpu=f'cpu{i}').set(percent) # Memory mem = psutil.virtual_memory() memory_usage_percent.set(mem.percent) # Disk per mount point for partition in psutil.disk_partitions(): usage = psutil.disk_usage(partition.mountpoint) disk_usage.labels(mount_point=partition.mountpoint).set(usage.used)

v_labels ~label_names ~help ~namespace ~subsystem name is a family of metrics with full name namespace_subsystem_name and documentation string help. Each metric in the family will provide a value for each of the labels.

December 26, 2016 - Gauges can go up and down over time, and scrapes take a snapshot of the current value. There's no potential for messing around with moving averages or resets, as there is with counters. Where Prometheus differs from other other monitoring systems is the API for gauges in instrumentation. The Prometheus Gauge API covers all the gauge uses cases in one place. It has inc, dec, and set methods, plus various utility functions for common uses such as setting the current time.

November 6, 2020 - // // A Gauge is typically used ... use NewGauge. type Gauge interface { Metric · Collector · · // Set sets the Gauge to an arbitrary value....

February 21, 2026 - Use .Set() when your application can retrieve the current value directly, such as from in-memory queues or counters. With prometheus_client, define the gauge and call .set() directly.

// // A Gauge is typically used ... use NewGauge. type Gauge interface { Metric · Collector · · // Set sets the Gauge to an arbitrary value....

A gauge metric to represent a value that can arbitrarily go up and down. The class represents the metric type gauge: https://prometheus.io/docs/concepts/metric_types/#gauge

January 1, 2023 - Prometheus::addGauge('User count') ->label('status') ->value(function() { return [ [User::where('status', 'active')->count(), ['active']], [User::where('status', 'inactive')->count(), ['inactive']], ]; }); Instead of using multiple methods, ...

November 6, 2023 - Use Flux to query and transform Prometheus gauge metrics stored in InfluxDB. A gauge is a metric that represents a single numerical value that can arbitrarily go up and down.

Hello, the best solution is probably to use a Custom Collector to gather the temperature information and only create a gauge if there is a value. This keeps the behavior of reading the thermometer when Prometheus scrapes the endpoint, and allows you lots of control over the results.

Decrement the gauge by 1. Decrement ... the gauge by 1. Increment the gauge by the given amount. Increment the gauge by the given amount. Set the gauge to the given value....

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 concurrent requests.

September 15, 2016 - (r@turbot)4> prometheus_gauge:new([{name,"name"},{help,"help me!"}]). ok (r@turbot)5> prometheus_gauge:value("name"). undefined (r@turbot)6> prometheus_gauge:reset("name"). false (r@turbot)7> prometheus_gauge:value("name"). undefined (r@turbot)8> prometheus_gauge:set("name",1).

April 11, 2023 - It have an gauge metric for conn pool stats, defined as: ... On other hand, another library we used only expose an Store method to the user, which is been called when the library want to set a metric to an concrete value (with different labels group), we implement Store use gauge.Set method.

I'm considering to use a gauge to reflect the evolution of a boolean value. Knowing that the set method of a Gauge cast the given value as a float, I could call directly my_gauge.set(my_bool_value), and have it set to 0.0 or 1.0.

February 5, 2021 - The max_over_time function calculates the gauge's maximum value over the time range. ... Most Prometheus functions do work with gauges, but there are some important exceptions such as increase and rate.