In the previous tutorial we covered how to successfully integrate one of the most popular, open source, TSDB visualization tools, Grafana with Elasticsearch. In this tutorial we will use Grafana to monitor an Elasticsearch cluster by importing an existing community dashboard along with our additional customizations.

Install Grafana

Note: If you already have installed Grafana from the previous tutorial, please move to the Import section.

We’re assuming you already have ELK setup on a Qbox cluster. At the time of this writing the latest stable build of Grafana is version 4.4.2.

First, add the following repo to your /etc/apt/sources.list file:

deb jessie main

If you want to try out betas or other release candidates add this repo instead:

deb jessie main

Next, add the Package Cloud key to install the signed packages:

curl | sudo apt-key add -

Update the Apt repositories and install the `grafana` package:

sudo apt-get update && sudo apt-get install grafana

Start the Service (systemd)

sudo systemctl daemon-reload && sudo systemctl start grafana-server && sudo systemctl status grafana-server

Enable the systemd service so Grafana starts at boot.

sudo systemctl enable grafana-server.service

Open Grafana

Open your browser-of-choice at http://<host>:3000 and use  admin as both the username and password credentials.


Load Elasticsearch Metrics

Download this python script and edit the cluster urls to reflect the ES cluster you wish to monitor (‘ES_METRICS_CLUSTER_URL’) and the ES cluster where the metrics will be stored. (‘ES_METRICS_MONITORING_CLUSTER_URL’).

elasticServer = os.environ.get('ES_METRICS_CLUSTER_URL', 'http://server1:9200')
interval = os.environ.get('ES_METRICS_INTERVAL', 60)
elasticIndex = os.environ.get('ES_METRICS_INDEX_NAME', 'elasticsearch_metrics')
elasticMonitoringCluster = os.environ.get('ES_METRICS_MONITORING_CLUSTER_URL', 'http://server2:9200')

After inputting the correct cluster information, execute the script on the monitoring cluster.

user@host:/~ python
Total Elapsed Time: 0.810939073563
Total Elapsed Time: 0.744627952576
Total Elapsed Time: 0.822533130646

Create / Import Dashboard

Back in Grafana, click  Home > Import Dashboard. Enter ‘878’ in the ‘ Dashboard’ input box, and click Load. Credit goes to Trevor Dodds for providing us with pre-loaded metric configurations to get a jump start for our monitoring.




Adjust and Tune

You can now adjust the time series settings in the top right hand corner to manipulate the data visualizations. Enjoy!





In this tutorial we discussed how to use Grafana to monitor an Elasticsearch cluster by importing an existing community dashboard along with our additional customizations. Comments/Questions? Drop us a line below.

Other Helpful Tutorials

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