# Datadog: Critical incident: Delayed Distribution Monitors Evaluations

**Summary:** Datadog reported a critical incident delaying Distribution Monitors evaluations, which it said began at 17:15 UTC on 2026-01-29. The incident resolved at 2026-01-29 19:55 UTC; the recorded duration was 2 h 19 min. Datadog deployed a fix at 18:36 UTC and stated no data was lost and evaluations would catch up. _(machine-written, sol)_
- Kind: Major incident · Label: degradation (model (Jev))
- Changed: 2026-01-29 17:35 UTC · Detected: 2026-10-17 18:22 UTC
- [Source: https://stspg.io/kywknq2z0ht1](https://stspg.io/kywknq2z0ht1)
- [Company: Datadog](https://rewindex.com/company/datadog.md)
- Versions: before (none: first archived) → after incident\_version:274/1hmvg62sxmjp@3691d22143db
- Change 1 of 1 for this incident

## What changed

**1. Added: Title**

```diff
+ Delayed Distribution Monitors Evaluations
```

**2. Added: Impact**

```diff
+ critical
```

**3. Added: Status**

```diff
+ resolved
```

**4. Added: Start time**

```diff
+ 2026-01-29 17:35 UTC
```

**5. Added: Resolved time**

```diff
+ 2026-01-29 19:55 UTC
```

**6. Added: Affected components**

```diff
+ Monitors
```

**7. Added: Update** (investigating) · 2026-01-29 17:35 UTC

```diff
+ We are investigating delays in Monitors evaluations, which began at 17:15 UTC.
```

**8. Added: Update** (identified) · 2026-01-29 17:46 UTC

```diff
+ We have identified the underlying issue and are working on a fix. It is important to note that no data has been lost, and evaluations will be caught up once the service is operational again.
```

**9. Added: Update** (identified) · 2026-01-29 18:06 UTC

```diff
+ We are continuing to work on a fix for this issue. It is important to note that no data has been lost, and evaluations will be caught up once the service is operational again.
```

**10. Added: Update** (monitoring) · 2026-01-29 18:36 UTC

```diff
+ We have deployed a fix and we are monitoring the results. We will continue to provide regular updates.
```

**11. Added: Update** (monitoring) · 2026-01-29 19:09 UTC

```diff
+ We are continuing to monitor the fix and will continue to provide regular updates.
```

**12. Added: Update** (resolved) · 2026-01-29 19:55 UTC

```diff
+ This incident has been resolved.
```

## History of this incident

| When (UTC) | Change | Label |
| --- | --- | --- |
| 2026-01-29 17:35 UTC | Critical incident: Delayed Distribution Monitors Evaluations (this change) | degradation |

All Datadog changes: [timeline](https://rewindex.com/company/datadog/changes.md)
_Diff excerpts are shown on normalized text: dates, counters and tokens appear as ‹date›, ‹count›, ‹tok›; noise-only edits are hidden. Rewindex shows the changed passages, not a copy of the page._


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Canonical: https://rewindex.com/change/id4aa46575feda1 · Markdown: https://rewindex.com/change/id4aa46575feda1.md · JSON: https://rewindex.com/api/v1/changes/id4aa46575feda1 · Generated 2026-10-18T02:54:51.348Z