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What are exemplars in Grafana?

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In Grafana, an exemplar is a specific trace that represents a recurrent pattern of data in a given time interval. It aids in the discovery of higher cardinality metadata inside time series data.

Consider the case when your company's website is seeing an increase in visitors. While more than 80% of users can access the website in less than two seconds, some users are experiencing a longer than typical response time, resulting in a negative user experience.

You must compare a trace for a rapid response to a trace for a slow response in order to determine the elements that are contributing to the latency. Given the enormous volume of data in a typical production setting, this will be a very time-consuming and arduous task.

You can use exemplars to assist isolate faults in your data distribution by isolating query traces with excessive latency within a time interval.

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