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Table of Contents
Method 1: Manual configuration
Create Prometheus system users and groups
Download and install Redis Exporter
Verify Redis exporter installation
Configure systemd service for Redis Exporter
Reload systemd and start Redis Exporter service
Configuring Prometheus Droplet (manual method)
Backup the prometheus.yml file
Add Redis Exporter endpoint scraped
Method 2: Use scripts to configure
Configure Prometheus Droplet (Script Method)
Configure Grafana
Home Database Redis Monitor Redis Droplet with Redis Exporter Service

Monitor Redis Droplet with Redis Exporter Service

Apr 10, 2025 pm 01:36 PM
mysql css linux redis git ai igs

Effective monitoring of Redis databases is critical to maintaining optimal performance, identifying potential bottlenecks, and ensuring overall system reliability. Redis Exporter Service is a powerful utility designed to monitor Redis databases using Prometheus. This tutorial will guide you through the complete setup and configuration of Redis Exporter Service, ensuring you seamlessly build monitoring solutions. By studying this tutorial, you will achieve fully operational monitoring settings

Monitor Redis Droplet with Redis Exporter Service

Method 1: Manual configuration

We continue with the manual configuration method in this section.

Create Prometheus system users and groups

Create a system user and group "prometheus" named to manage the exporter

 sudo groupadd --system prometheus
 sudo useradd -s /sbin/nologin --system -g prometheus prometheus

Download and install Redis Exporter

Download the latest version of Redis Exporter downloaded files from GitHub and move the binary to the /usr/local/bin/ directory.

 curl -s https://api.github.com/repos/oliver006/redis_exporter/releases/latest | grep browser_download_url | grep linux-amd64 | cut -d '"' -f 4 | wget -qi -
 tar xvf redis_exporter-*.linux-amd64.tar.gz
 sudo mv redis_exporter-*.linux-amd64/redis_exporter /usr/local/bin/

Verify Redis exporter installation

 redis_exporter --version

Here is the sample output:

Monitor Redis Droplet with Redis Exporter Service

Configure systemd service for Redis Exporter

Create a systemd service unit file to manage Redis Exporter

 sudo vim /etc/systemd/system/redis_exporter.service

Add the following to the file:

redis_exporter.service
 [Unit]Description=Prometheus Redis ExporterDocumentation=https://github.com/oliver006/redis_exporterWants=network-online.targetAfter=network-online.target[Service]Type=simpleUser=prometheusGroup=prometheusExecReload=/bin/kill -HUP $MAINPIDExecStart=/usr/local/bin/redis_exporter
   --log-format=txt
   --namespace=redis
   --web.listen-address=:9121
   --web.telemetry-path=/metricsSyslogIdentifier=redis_exporterRestart=always[Install]WantedBy=multi-user.target

Reload systemd and start Redis Exporter service

 sudo systemctl daemon-reload
 sudo systemctl enable redis_exporter
 sudo systemctl start redis_exporter

Configuring Prometheus Droplet (manual method)

Let's configure the Prometheous Droplet manually.

Backup the prometheus.yml file

 cp /etc/prometheus/prometheus.yml /etc/prometheus/prometheus.yml-$(date '%d%b%Y-%H:%M')

Add Redis Exporter endpoint scraped

Log in to your Prometheus server and add the Redis Exporter endpoint to crawl.

Replace the IP address and port with your Redis Exporter endpoint (9121 is the default port for Redis Exporter service).

 vi /etc/prometheus/prometheus.yml
prometheus.yml
 scrape_configs:
  - job_name: server1_db
    static_configs:
      - targets: ['10.10.1.10:9121']
        labels:
          alias: db1

  - job_name: server2_db
    static_configs:
      - targets: ['10.10.1.11:9121']
        labels:

Manual configuration ends here. Now, let's continue with script-based configuration.

Method 2: Use scripts to configure

You can also do this by running two scripts - one for the target Droplet and the other for the Prometheus Droplet.

Let's start by configuring the target Droplet.

Connect to the target Droplet via SSH.

Use the following command to download the target configuration script:

 wget https://solutions-files.ams3.digitalocianspaces.com/Redis-Monitoring/DO_Redis_Target_Config.sh

After downloading the script, make sure it has executable permissions to run:

 chmod x DO_Redis_Target_Config.sh

Execute the script by running the following command:

 ./DO_Redis_Target_Config.sh

Configuration

Monitor Redis Droplet with Redis Exporter Service

Note: If the redis_exporter.service file already exists, the script will not run.

Monitor Redis Droplet with Redis Exporter Service

Configure Prometheus Droplet (Script Method)

SSH to Prometheus Droplet and download the script using the following command:

 wget https://solutions-files.ams3.digitalocianspaces.com/Redis-Monitoring/DO_Redis_Prometheus_Config.sh

After downloading the script, make sure it has executable permissions to run:

 chmod x DO_Redis_Prometheus_Config.sh

Execute script running:

 ./DO_Redis_Prometheus_Config.sh

Enter the number of droplets to add to the monitoring.

Enter the host name and IP address.

Monitor Redis Droplet with Redis Exporter Service

Configuration is complete.

After adding, check whether the target is updated by accessing the URL prometheushostname:9090/targets.

Note: If the IP address you entered has been added to the monitoring, you will be asked to enter the details again. Also, if you don't have more servers to add, you can enter 0 to exit script

Monitor Redis Droplet with Redis Exporter Service

Configure Grafana

Access Grafana-IP:3000 through your browser to log in to the Grafana dashboard.

Go to Configuration > Data Source.

Monitor Redis Droplet with Redis Exporter Service

Click Add Data Source.

Monitor Redis Droplet with Redis Exporter Service

Search and select Prometheus.

Monitor Redis Droplet with Redis Exporter Service

Enter the name Prometheus and URL (Prometheus hostname: 9090) and click Save and Test. If you see "Data Source is running", you have successfully added the data source. When finished, go to Create > Import.

Monitor Redis Droplet with Redis Exporter Service

You can configure the dashboard manually or import the dashboard to upload the JSON file by importing it through the following methods. The JSON template for Redis monitoring can be found in the following link:

 https://solutions-files.ams3.digitalocianspaces.com/Redis-Monitoring/DO_Grafana-Redis_Monitoring.json

Fill in the fields and import them.

Monitor Redis Droplet with Redis Exporter Service

The Grafana dashboard is ready. Select the host and check if the metric is visible. Feel free to modify and edit the dashboard as needed.

Monitor Redis Droplet with Redis Exporter Service

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