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Message Posted: Thu, 26 Mar 2015 @ 14:43:36 GMT


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Subj:		Re: Canary Queries - TO Analyze System response

From:		Dave Wellman

Hi Sravan,

"how to decide the threshold" ?

I think you need to run the canary queries for a while against your system and then plot the response time against system utilisation, from that you can decide your threshold. I know that may not sound very scientific but I think that is what you have to do.

This will also depend on the type of canary query that you are running. Is it an all-AMP query? Is it a PI lookup? Both of these will have very different thresholds for good, ok, bad.

Cheers,

Dave

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