How to Monitor Your Avail Validator Node
Telemetry
Maintaining a healthy, stable, and secure ecosystem involves closely monitoring network operations and performance. In the case of Avail nodes, they come equipped with built-in low-level telemetry components that automatically gather and transmit detailed information about each node’s operation within the network. This backend telemetry data is streamed in real-time to a designated endpoint, allowing you to observe information regarding your nodes behavior.
Avail project has made available a public telemetry for anyone to view the status of their nodes. This should not replace your own monitoring and alerts. However it is a key tool that anyone can use to view the status of their nodes at anytime.
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Avail telemetry has been added to the chain specification file and should automatically send telemetry data to Avail public telemetry . You can however also
add the telemetry --telemetry-url 'ws://telemetry.avail.so:8001/submit/ 0'
to your avail node start command if your node is not visible on the public telemetry.
You can also use --name <Validator Node Name>
to set the name that will display on telemetry. Without this it will display a random node name on the telemetry.
For example:
./data-avail --validator \
--port 30333 \
--base-path `pwd`/data \
--chain `pwd`/chainspec.raw.json \
--name AvailNode \
--telemetry-url 'ws://telemetry.avail.tools:8001/submit/ 0'
Monitoring with Prometheus & Grafana
Prometheus serves as a monitoring platform that gathers metrics from monitored targets through scraping their metrics HTTP endpoints. In contrast, Grafana acts as a visualization dashboard specifically designed to present the collected data in an easily understandable and visually appealing manner.
The below guide is for setting up a local Prometheus & Grafana instance on the same server as your Avail node. If you’re already experienced with Prometheus & Grafana and want to connect your Avail node to an existing Prometheus installation on a different server, include the --prometheus-external
flag in your Avail node’s startup command.
Install Prometheus
Install prometheus and prometheus node exporter.
sudo apt-get install -y prometheus prometheus-node-exporter
Create the prometheus.yml config file
cat > $HOME/prometheus.yml << EOF
global:
scrape_interval: 15s
evaluation_interval: 15s
rule_files:
# - "first.rules"
# - "second.rules"
scrape_configs:
- job_name: "prometheus"
scrape_interval: 5s
static_configs:
- targets: ["localhost:9090"]
- job_name: "avail_node"
scrape_interval: 5s
static_configs:
- targets: ["localhost:9615"]
- job_name: node
static_configs:
- targets: ['localhost:9100']
EOF
Move prometheus.yml
to the correct location
sudo mv $HOME/prometheus.yml /etc/prometheus/prometheus.yml
Update the file permissions
sudo chmod 644 /etc/prometheus/prometheus.yml
Ensure Prometheus starts automatically
sudo systemctl enable prometheus.service prometheus-node-exporter.service
Restart Prometheus to activate latest settings
sudo systemctl restart prometheus.service prometheus-node-exporter.service
Check the status, ensure Prometheus has started without errors
sudo systemctl status prometheus.service prometheus-node-exporter.service
Install Grafana
Install Grafana
wget -q -O - https://packages.grafana.com/gpg.key | sudo apt-key add -
echo "deb https://packages.grafana.com/oss/deb stable main" > grafana.list
sudo mv grafana.list /etc/apt/sources.list.d/grafana.list
sudo apt-get update && sudo apt-get install -y grafana
Ensure Grafana starts automatically
sudo systemctl enable grafana-server.service
Start Grafana
sudo systemctl start grafana-server.service
Check the status, ensure Grafana has started without errors
sudo systemctl status grafana-server.service
Setup Grafana Dashboard
Ensure port 3000 is open, example of adding to ubuntu firewall
sudo ufw allow 3000/tcp
In your browser navigate to http://<your validators ip address>:3000
. The default login username and password is admin/admin
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You will be asked to reset your password, please write it down or remember the password as you will need it for the next login.
You will need to create a datasource. Navigate to Home->Connections->Data sources
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Click on Add data source
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Click on Prometheus
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Set URL to “localhost:9090”, then test and save the connection
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Navigate back to your home page, on the top right in the menu select Import dashboard
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Import the Avail Node Metrics file
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You will have a new dashboard that opens and that you can use to monitor your node
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