Redis- DataSource - Occasionally 'No Data'

Thanks Brandon - You are correct - one of the datapoints 'bgrewriteaof_in_progress' reports No Data.  The datapoint uses a regex of 'bgrewriteaof_in_progress:(\d+)', and certainly in the environment I was working on, this regex does not match any value returned by the INFO command (or even an INFO ALL command) on Redis version 3.2.8 .  From the Redis documentation, the nearest similar return value I can locate is 'aof_rewrite_in_progress', but I do not have a high confidence level that this is the value that the datapoint should be reporting.