New question #242095 on Graphite:
https://answers.launchpad.net/graphite/+question/242095

hello, 

can anybody explain which aggregation method is best for storing counter or 
derive in whisper? 

I have counter which wraps-over several times per day and use 'LAST' 
aggregation method. Graphs on the day and week scale are good using 
nonNegativeDerivative(), but month graphs shows random (usually much lower then 
true values) data.

I understand it so that 'LAST' aggregation for 1mon retention store values at 
"random" moment to the database so applying derivative() or 
nonNegativeDerivative() make no sense.



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