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IOSTMON - Monitoring IOST Nodes With Node Exporter, Prometheus, and Grafana

Attic Lab contributes to our collection of network monitoring tools by developing an IOSTMON. The tool aims at helping DevOps teams, as well as regular users, to keep track of the activity of their IOST nodes. The tool is premised on public technologies, such as Node Exporter, Prometheus, and Grafana. As we plan to expand the number of supported metrics, any public contribution is warmly welcomed!

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Requirements:

  1. Node exporter
  2. Prometheus
  3. Grafana

Step 1: Start Node Exporter with collector.textfile.directory

Create node_exporter user:

sudo useradd --no-create-home --shell /bin/false node_exporter 

Create directory:

sudo mkdir -p /var/lib/node_exporter/textfile_collector
sudo chown node_exporter:node_exporter /var/lib/node_exporter/textfile_collector

Create iost_metrics.prom

sudo touch /var/lib/node_exporter/textfile_collector/iost_metrics.prom 
sudo chmod o+w /var/lib/node_exporter/textfile_collector/iost_metrics.prom

Create service file:

vim /etc/systemd/system/node_exporter.service 
[Unit]
Description=Node Exporter
Wants=network-online.target
After=network-online.target

[Service]
User=node_exporter
Group=node_exporter
Type=simple
ExecStart=/usr/local/bin/node_exporter --collector.textfile.directory /var/lib/node_exporter/textfile_collector

[Install]
WantedBy=multi-user.target

Step 2: Start script iost_exporter.sh

This script collect metrics to text file. You need to set variables in iost_exporter.sh. For example you can use supervisor to start this script.
To check Node Exporter use curl http://localhost:9100/metrics.

Step 3: Import template to Grafana

You can import template iost_dashboard.json to Grafana using standard import procedure.

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