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[Question #222333]: Drawing static line

To: graphite-dev@xxxxxxxxxxxxxxxxxxx
From: Maziyar Mirabedini <question222333@xxxxxxxxxxxxxxxxxxxxx>
Date: Wed, 20 Feb 2013 01:45:56 -0000
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New question #222333 on Graphite:
https://answers.launchpad.net/graphite/+question/222333

Hi there,

Currently I'm using Graphite to create graphs from Ganglia RRDs generated from HBase clusters.
I've written a PHP application to use the URL API in Graphite to draw the graphs.
Recently I was asked to show alerts on the PHP site using defined thresholds.  So I used the Graphite URL again to obtain raw data in cactistyle and parse the current value against the thresholds. So far so good! 

Then time came to show that threshold on the graph itself so the user can visually see it and compare the values against the threshold. e.g. a dotted red line on the graph at 50,000. 

Is there a way for Graphite to draw this line without creating additional RRDs? 

Thank you for your help! 

maz

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