19 Mar 2020
08:41 PM
- last edited on
15 Mar 2023
04:37 PM
by
Ana_Kuzmenchuk
Hi All,
I have a question related to the automatic threshold baseline and also the relative and absolute thresholds.
The first question is how Dynatrace calculates the automatic baseline, is the learning time 7 days?
And what exactly are the relative and absolute thresholds? I can understand how they are calculated, but I couldn't understand exactly what these are. Can you clarify it for me? Thank you.
Best Regards,
Mevlüt
Solved! Go to Solution.
19 Mar 2020 09:37 PM
The baseline is calculated over a 7 day rolling window. The calculation starts immediately and gets more refined over time until it can finally compare the current Monday to the previous Monday when it has a week of data. Low/High Traffic problems will not be raised until a week has passed since initial data collection for the application/service. Response Time and Failure problems will be raised after 20% of a week.
Relative and Absolute refer to thresholds set based on the deviation from the baseline, not the baseline itself.
An example of absolute would be 100 ms. An example of relative would be 50%.
Absolute means a concrete number. Relative means a percentage increase.
More details here:
https://www.dynatrace.com/support/help/shortlink/automated-baselining
https://www.dynatrace.com/support/help/shortlink/problem-detection-sensitivity
Hope this helps,
dave
17 Jun 2022 11:00 AM
Hi Dave,
So, focusing on Response Time, absolute theshold means that if the response time of baseline in the last 7 days exceded of 100ms it raises an alert, right?
And, for example, if we increase the absolute threshold from 100ms to 1000ms, an alert was raised if the response time of the baseline exceded of 1 sec in the last 7 days, right?
Regards,
Elena.
14 Mar 2024 10:35 AM
The baselining is not taking the average or median of the 7 days.
The baseline detection mechanism employs observation periods of 5 minutes and 15 minutes. This approach ensures that any detected baseline event must endure for at least 5 minutes, thereby preventing the generation of alerts for transient metric fluctuations.
14 Mar 2024 08:56 AM
On that is this calc right showcased over AD?
26 Jun 2024 08:26 AM