Prometheus - Node Exporter (Linux/Mac)

About

node exporter is a exporter for Linux Metrics:

  • CPU,
  • System Memory Utilization,
  • and Disk Usage

The Prometheus node exporter exports lots of system metrics via HTTP

Metrics specific to the Node Exporter are prefixed with node_

Expression

Prometheus - Query (PromQL, Expression)

  • The average amount of CPU time spent in system mode, per second, over the last minute (in seconds) - Url form -
rate(node_cpu_seconds_total{mode="system"}[1m])
  • The filesystem space available to non-root users (in bytes) - Url form
node_filesystem_avail_bytes
  • The average network traffic received, per second, over the last minute (in bytes) - Url form
rate(node_network_receive_bytes_total[1m])

Documentation / Reference


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