• Mike Hibler's avatar
    The technique of grabbing the last 20 records and picking the latest · 2bc81fac
    Mike Hibler authored
    non-NULL latency/BW from those was too simplistic.  With latency measurements
    much more frequent than BW measurements, we often never got a valid BW
    because we didn't go back far enough.
    
    So now just do two queries for the most recent non-NULL value of each.
    This could probably be done in a single query by joining the table with
    itself...
    2bc81fac
dbmonitor.pl 11.2 KB