Alerts Based on Rolling Averages in Log Analytics

This post will go over how to create an alert for Log Analytics that evaluates two recent time periods for comparison. It’s a little, let’s say, “in depth” as far as Log Analytics queries go. The alert is intended to trigger when a variable threshold is met based on the recent baseline as opposed to a static metric. Used with my PingTimeLog tool found here, alerts can be triggered if recent response time goes over a rolling average value. I also include a disk free space alert to identify when a large amount of data is added to a disk.

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