title: Multiple series for multiple tags in one Grafana graph
body: <p>Is it possible to create a graph in Grafana using OpenTSDB as data source where it has multiple metrics and each metric has multiple values for the same tag?</p>
  
  <p>Say I have <code>load.average.1m</code> and <code>load.average.5m</code>, and each of the two has host tag as <code>host1</code>, <code>host2</code>.</p>
  
  <p>Is there a sane way to make the graph to display <code>load.average.1m</code> and <code>load.average.5m</code> for <code>host1</code> and also <code>load.average.1m</code> and <code>load.average.5m</code> for <code>host2</code>? All I am getting now is <code>host1</code> and <code>host2</code> repeated twice on the graph legend, so it's 4 legend items for 2 things.</p>