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Highlight outliers series.
Forecast future values based on past values.
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Seasonality (Hourly, Daily):
Hourly: This setting is used for log metrics that display hourly cyclic behavior. For instance, if your log data typically fluctuates each hour based on user activity or background processes, setting the seasonality to Hourly enables the SARIMA model to capture these hourly patterns accurately.
Daily: This setting captures daily seasonality, suitable for log metrics with a daily recurring pattern. For example, if log entries spike every evening due to daily system maintenance tasks, setting the seasonality to Daily allows the model to recognize these daily trends.
Bands (1, 2, 3):
Band 1 (Narrow): Offers high sensitivity by setting a tighter range around predicted values, detecting even minor deviations. This band is useful when you need to capture subtle changes in log volume that might indicate early signs of issues.
Band 2 (Moderate): Provides a moderate range, making the algorithm less sensitive to minor fluctuations and ideal for monitoring with fewer false positives.
Band 3 (Wide): Defines the widest range, capturing only significant deviations. This setting is suitable for metrics where only large, impactful anomalies are of interest, reducing alert noise for minor variations.
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Seasonality (Hourly, Daily):
Hourly: This setting is used for log metrics that exhibit hourly patterns within a 24-hour cycle. For example, if your error logs tend to spike each hour due to automated checks or periodic background processes, selecting Hourly allows the algorithm to model these regular occurrences and detect deviations that fall outside the norm.
Daily: This setting captures daily seasonality, making it useful for log metrics that show daily patterns. For instance, a daily surge in user login errors each morning when users start their workday would be expected. With Daily seasonality, the algorithm anticipates these recurring daily trends, flagging only unusual changes outside the expected pattern.
Bands (1, 2, 3):
Band 1 (Narrow)
Band 2 (Moderate)
Band 3 (Wide)
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The chart displays the results of DBSCAN outlier detection applied to the selected log metric over time. In the visualization:
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