title: Grouping servers in grafana/prometheus
body: <p>I would like to group database servers in grafana dashboards e.g, servers belonging to the same cluster, db-pxc, end up looking like this:</p>
  
  <pre><code>DB-PXC
      -Disk_Performance
          -db-pxc-1
          -db-pxc-2
          -db-pxc-3
          ...
      -Disk_Space    
          -db-pxc-1
          -db-pxc-2
          -db-pxc-3
          ...
      -MySQL_Overview
          -db-pxc-1
          -db-pxc-2
          -db-pxc-3
          ...
      -MySQL_Table_statistics
          -db-pxc-1
          -db-pxc-2
          -db-pxc-3
          ...
       ...
  </code></pre>
  
  <p>So if i click on the parent dashboard Disk_Space, it displays disk space sub dashboard for each host in the db-pxc cluster (db-pxc-1, db-pxc-2, db-pxc-3, ...). That way i can compare the disk space usage of all my servers in one cluster on a single page. We already have this setup in cacti, but not sure how we can achieve the same with grafana. </p>
  
  <p>We are using Promethues monitoring system, node_exporter &amp; mysqld_exporter for collecting statistics on each individual server, and grafana for viewing the dashboard. To view data of the mysqld and node exporters supported by prometheus in grafana, we are using the Percona Grafana plugin.</p>
  
  <p>Below is an example of what i am asking for. In the picture below, the db cluster name is kdb, db-kdb-1, db-kdb-2, db-kdb-3 and db-kdb-4 being being part of the nodes that forms the cluster. So like seen below, when i click on CPU, it shows all CPU usage of my kdb cluster nodes.</p>
  
  <p><a href="https://i.stack.imgur.com/emCBp.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/emCBp.png" alt="enter image description here"></a></p>