Observability FAQ

Tracking and automation

Volume Tracking is on but no volumetric checks appear. Why?

Volume Tracking records the measurements; Create AI Volumetric checks is what authors the checks from those measurements. Both toggles need to be on, and enough measurements need to accumulate before Qualytics can infer thresholds. As an alternative, author a Volumetric check manually from the Quality Checks flow.

When is the first daily measurement recorded?

The sweep runs once per hour at minute 30 UTC. The first meaningful measurement for a given UTC day lands around 00:30 UTC.

Does turning off Volume Tracking delete my existing volumetric checks?

No. Existing authored checks are preserved. New measurements stop being recorded until tracking is turned back on. Create AI Volumetric checks is also cleared server-side when Volume Tracking is turned off.

Why does my report date look one day behind what my ETL logged?

All observability windows are anchored to UTC. If your ETL runs in a local time zone, expect the report date to shift accordingly.

Chart and heatmap

Why is the heatmap grey for today but cyan for yesterday?

Grey means "no measurement recorded for that day". If today's measurement has not been taken yet (the sweep runs hourly), the square stays grey until the first successful measurement lands.

What do the heatmap colors mean?

Cyan. Measurement recorded, no anomaly.
Orange. At least one anomaly recorded that day.
Grey. No measurement for that day.

The salmon color you see on the chart line is separate: it marks measurements that fell outside the thresholds but did not raise an anomaly.

My metric chart shows "No measures" after two scans. Why?

Charts have a minimum-measurement bar before they render:

Absolute Value needs 2 measurements.
Absolute Change needs 3 measurements.
Percentage Change needs 3 measurements.

Run more scans, then reload the page.

Checks and configuration

Can I have multiple Volumetric checks on the same table with different window sizes?

Yes. Each Volumetric check has its own Measurement Period (window size in days), so a 1 Day and a 7 Days check can coexist on the same container and evaluate different windows independently. The card's check selector groups them under "Measurement Period".

What is the difference between "Edit Maximum Age" and "Edit Check"?

The Edit Maximum Age button on the freshness chart only edits the Maximum Age value (with its unit dropdown). The full Edit Check modal (opened from the Quality Checks flow) also lets you edit description, tags, metadata, and the comparison type. Use the chart-inline editor for threshold-only tuning; use the full modal for everything else.

What units can I use for Maximum Age?

Millis, Seconds, Minutes, Hours, Days, Weeks. The unit is the display and edit unit; internally, the value is always stored in milliseconds.

How is an AI-authored check different from one I authored?

Both are Volumetric or Freshness checks and behave identically at runtime. The difference is provenance: AI-authored checks were inferred from accumulated measurements and carry an AI badge next to the check id in the UI.

Anomalies

An anomaly appeared but the count on the chart looks fine. Why?

Two things can trigger a threshold to fire before you would notice a value on the chart:

Change comparisons. Absolute Change and Percentage Change look at the delta from the previous measurement. Even if today's value looks close to yesterday's on the chart, a percentage delta outside the configured range still raises an anomaly.
Salmon-marked points. Sometimes a measurement is out of range on the chart line (salmon color) without also raising an anomaly, depending on the check's tolerance configuration. Check the anomaly detail page for the full context.

My container's status changed to Inaccessible. What does that mean for observability?

Containers marked Inaccessible are excluded from the sweep. Three consecutive failed measurements will flip a container to Inaccessible. Fix the underlying access issue (source unreachable, permissions revoked) and the sweep resumes on the next cycle.

Where do I see observability across all my datastores at once?

The Explore section has an Observability page that lists checks across every datastore you can access. Filter by Datastore, Container, or Tag from there.

Can I filter by Rule Type on the Metrics tab?

No. The Rule Type filter is only available on the Measures tab because Volumetric and Freshness both live under Measures. The Metrics tab is already scoped to metric checks, so the filter would have no options to offer.

How do I keep a check pinned to the top of the listing?

Click the Bookmark icon on the card or check. Favorites are per-user, so your favorites do not affect other users. The listing sorts favorited items to the top by default.