This page answers frequently asked questions about Metrics Explorer and provides troubleshooting guidance for common issues.

Frequently Asked Questions

Why is RUN ANALYSIS disabled?

Analysis is disabled when the PromQL query returns more than 12 series. Apply additional filters (instance, os, host, type) until series count is 12 or less.

What historical window is used for analysis?

Analysis uses up to one month of data sampled at one-minute intervals (approximately 43,200 points).

Why does the chart show gaps even when analysis is available?

Analysis interpolates missing values to provide continuity, but the chart can still show gaps where source data is missing.

Why is Seasonality not detected?

If there is no seasonal behavior in the data, there will be no seasonality.

Why aren’t any anomalies detected?

There will be no anomalies if all the data lies within the normal region and there is no abnormal behavior.

Why are many anomalies detected?

The data has shifted from a high-value region to a lower-value region with high volatility.

The threshold is calculated using anomaly points identified within the high volatile region, using a specialized technique. When the data moves to a different, lower-value region, the calculated threshold may no longer represent the new data behavior accurately.

As a result, more points in the new region can fall outside the threshold and get flagged as anomalies, even though they may be normal for that region.

What data pattern is this analysis best suited for?

This analysis is most useful for data that naturally moves up and down with some volatility, while still staying within a stable overall pattern. It is less suitable for data that suddenly shifts to a new level or mostly contains 0s and 1s.

Troubleshooting