moosefs-tricorder

Scrape a moosefs master server with mfscli and export information to prometheus for further processing - graphing, alerting, etc.

I couldn't find documentation about the moosefs master's API. However, they do provide the mfscli command, and its output is parseable relatively easily.

I don't guarantee this will work with any version of the master other than 3.116, that's all I've tested it on.

Installation

You have three options

• Install it via pip install moosefs-tricorder on a machine. You may run into irritations due to dependencies. You will also need to install mfscli - the exporter uses that to probe the master for statistics about the master, the chunkservers, and the moosefs filesystem.
• Use my docker image - docker run -p 9877:9877 unixorn/moosefs-tricorder moosefs-prometheus-exporter --master YOUR_MOOSEFS_MASTER. This image supports the linux/arm64, linux/amd64 and linux/arm/v7 architectures.
• Bake your own image with make local. You'll need to change $HUB_USER in the Makefile.

Usage

If you install directly on your system, you can run moosefs-prometheus-exporter.

                               [--master-port MASTER_PORT (default 9421)] [--moosefs-master MOOSEFS_MASTER] [--polling-interval POLLING_INTERVAL_IN_SECONDS (default 15)]

If you're running it in docker, you can either run docker run -p 9877:9877 unixorn/moosefs-tricorder moosefs-prometheus-exporter --master YOUR_MOOSEFS_MASTER, or use docker-compose.

---
# example docker-compose.yaml
version: '3'

services:
  moosefs-tricorder:
    image: unixorn/moosefs-tricorder:latest
    container_name: moosefs-tricorder
    command: moosefs-prometheus-exporter --moosefs-master=mfsmaster.example.com
    ports:
      - 9877:9877
    restart: unless-stopped
    environment:
      - TZ=America/Denver
    volumes:
      - /etc/hostname:/etc/hostname:ro
      - /etc/localtime:/etc/localtime:ro
      - /etc/timezone:/etc/timezone:ro