BrightcoveOS/Diamond — pull request #398 by jessedavis (2013-06-16 04:02:19+00:00)
Title: Database nickname not prepended to derivative values

In the case of polling multiple databases differentiated by nicknames, the nickname is not prepended to the metric name. Since diamond.Collector.derivative stores the last value in a dict with the metric name as the key, polling multiple databases will continually overwrite the old value, introducing errors into the derivative value for that metric for all databases.