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Consider an alert that runs with hourly granularity and an incident that last 3 hours. The alert will detect an anomaly 3 times, but it is actually the same incident. ThirdEye merges the anomalies in a single one. By default, the following rules are applied:
  1. consecutive anomalies are merged
  2. if an anomaly lasts for more than 7 days, a new anomaly is created

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Examples

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Anomaly merge

  1. Default behavior merging anomalies
  2. Custom behavior
    You can configure ThirdEye to merge anomalies that have a small gap between them using mergeMaxGap.
    For instance, with mergeMaxGap=PT2H, anomalies that have less than 2 hours between them are merged together. custom merging anomalies
  3. Disable anomaly merger
    You can disable anomaly merger by setting mergeMaxGap=PT0S. anomaly merger disabled

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Anomaly max length

A new anomaly is created when the maximum length is reached. You can customize this maximum length with mergeMaxDuration. merging maximum