Netdata vs Prometheus Node Exporter

Netdata is an observability platform for real-time infrastructure monitoring and troubleshooting. Its agent gathers metrics and logs and provides per-second monitoring, machine-learning anomaly detection, dashboards, and alerts. Netdata lists more than 800 collectors and notification channels, including Slack, PagerDuty, Microsoft Teams, email, and webhooks. The agent can ingest Prometheus, OpenMetrics, StatsD, and OpenTelemetry data and export to Prometheus Remote Write, InfluxDB, Graphite, OpenTSDB, and TimescaleDB. Organizations can use the managed cloud platform or deploy on premises, including in air-gapped environments. Netdata says metrics remain on the user's infrastructure while only metadata reaches the cloud. Native Android and iOS apps provide alerts and notifications. The Community plan is free, with up to five active connected nodes and one active custom dashboard per room. Signing up for Netdata Cloud includes a 14-day Business trial for any number of nodes with no limits. Business costs $4.50 per month billed annually, with a stated total of $540.00/year.

Prometheus Node Exporter exposes hardware and operating-system metrics from *NIX kernels for Prometheus. Written in Go, it uses pluggable collectors, with default coverage for CPU, disk I/O, filesystem, memory, and network metrics where the operating system supports them. Command-line flags enable or disable collectors, and some collectors accept include or exclude filters. The exporter listens on HTTP port 9100 by default. Documentation covers Linux distribution packages, an Ansible community role, and container deployment. Containerized monitoring requires host namespace access and suitable mounts; some systems also need an extra capability for the timex collector. Certain collectors are off by default because they can have high cardinality, take longer, or consume host resources. The project is Apache 2 licensed and free, with no paid plans listed. Windows users are directed to Windows Exporter.