Cgroup Exporter
A Prometheus exporter that collects and exposes resource usage metrics from Linux control groups (cgroups).
Overview
The cgroup_exporter is a Prometheus exporter that scrapes resource utilization data from Linux cgroups, which are kernel mechanisms for limiting and monitoring resource usage for processes. It is particularly useful for monitoring jobs in high-performance computing (HPC) environments managed by schedulers like Slurm and TORQUE, as well as systemd user slices.
Key Features
- CPU Metrics — Exposes system, user, and total CPU seconds consumed by cgroups.
- Memory Metrics — Reports memory usage, cache, RSS, total, and fail counts for both memory and swap.
- Cgroup Information — Includes metadata such as user ID, username, and job ID for contextual labeling.
- Multi-Scheduler Support — Works with cgroup paths for Slurm, TORQUE, and systemd user slices.
- Process Collection — Optional collection of process information from procfs with appropriate capabilities.
- Docker Deployment — Provides a Docker image for easy containerized deployment with host cgroup filesystem access.
Philosophy
The exporter is designed to be simple and focused, providing essential cgroup metrics to Prometheus without unnecessary complexity, enabling detailed resource monitoring in containerized and HPC environments.
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