Lab 10 - Identify "out of the ordinary" Events
This lab will teach you how to use Outlier to identify events outsides of a threshold.
Explore the functionality of the outlier operator, which allows you to identify events outside of a threshold.
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Search your Labs/Apache/Access logs looking for status_code 404 for the last 60 minutes.
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Slice your 60 minutes by 1-minute increments and count your 404 status codes by timeslice.
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Identify outliers outside of the 3 standard deviations and plot results on a line graph.
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Test the same with outliers outside of 1 standard deviation. Chart on a line graph.
_sourceCategory=Labs/Apache/Access status_code=404
| timeslice 1m
| count(status_code) as error_count by _timeslice
| outlier error_count window=10, consecutive=1, threshold=3, direction=+-
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Bonus: Edit the parameters for window, consecutive, threshold, and direction to see the change in behavior.
