title: graphite or grafana, rename IDs to String in the series
body: <p>I've a data series that contains ID of the users. I can print the chart for 1,2,3 where the number are the IDs of the user. Now, i've in a file the name of the users and their IDs, thus 1=Alice, 2=Bob etc. 
  Is there a way to rename the series such that the chart show Alice or Bob instead of numbers?</p>
  
  <p>Note that I user *, I've a data series of this type request. where as USER-ID i put * and graphite+grafana shows the 3 charts, one for each USER-ID.</p>
  
  <p>This is what I get, and I would like to have for each series the name of the user instead of the ID (which is half covered for security)</p>
  
  <p><a href="https://i.stack.imgur.com/5r6tk.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/5r6tk.png" alt="enter image description here"></a></p>