Add support for calculated metrics to App Insights
I would like the ability to combine two metrics in a third, calculated metric. For example, I might want to create a "Custom Error Percentage" metric that divides custom errors per second by requests per second. I could then alert off an error metric that has been normalized for scale instead of one that's specifically tied to RPS.
This work is in our backlog but not immediately scheduled. For now you can use http://apmtips.com/blog/2017/01/17/alerting-over-analytics-queries/ as a workaround.
Sergey Kanzhelev commented
There is a hacky way to implement it: http://apmtips.com/blog/2017/01/17/alerting-over-analytics-queries/
Shashank Bansal commented
Besides alerts based on the calculate metric, this feature would be extremely relevant to get to a single dashboard (like the OI dashboard) through which we can drive service reviews etc.
Service availability is typically a combination of GSM availability numbers and some of the performance counters.