exometer

Supports a wide range of built-in types like counters, gauges, histograms, and spirals, with the ability to create custom entries and probes for specialized monitoring needs, as detailed in the built-in entries section.

Includes native reporters for Graphite, OpenTSDB, AMQP, and SNMP, enabling seamless data export to external monitoring systems without additional coding, as shown in the built-in reporters documentation.

Allows metrics to be created, updated, and subscribed to at runtime via API calls like exometer:new() and exometer_report:subscribe(), facilitating adaptive monitoring without system restarts.

Reduces load on probes with configurable cache lifetimes, improving efficiency for frequent metric reads, as explained in the caching mechanism section.