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I'm attempting to monitor a dead letter queue for a large increase in failures. Ideally if the count of unacked messages increases by, say, 50 in a 10 minute period, I'd like to know. Something like this:

Count @ period start Count @ period end Alert?
0 20 No
20 26 No
26 90 Yes
90 92 No
92 200 Yes

Any 10 minute window there's an increase of >50, I want to know about it. I see lots of summing and counting functions, and a percentage change function, but I'm not sure how to put them together to get the result I want.

pennstatephil
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  • Do [thread1](https://stackoverflow.com/questions/64056103/) and [thread2](https://stackoverflow.com/questions/53562350/) help you? – kiran mathew Mar 27 '23 at 13:41
  • @kiranmathew unfortunately, they don't. I don't want an alert when it reaches a certain # of messages in the dead queue, I want an alert when the change between two time periods exceeds a certain number. – pennstatephil Mar 27 '23 at 15:34

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