hey gang, I'm trying to create a graph that uses a datasource from a number of different rrd files to show total items in the queue.
I have the graph working, but I want to add a legend item that shows the total. right now, the graph (a stacked graph) shows a different band for each server and the legend displays the text "<server name> <X> messages in the queue". but how can i add up all the values so i can print "total <X> messages in the queue"? i'm doing this on a php page if that helps/matters. I have a foreach loop that extracts the ds value for each server in a list. (rrdtool = 1.3.8) thanks! thanks! J
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