# Sentry: Major incident: Span & Transaction ingestion delayed in DE

**Summary:** Sentry reported major ingestion delays for spans and transactions in DE and US, with a US errors backlog also noted. The incident started at 2026-08-13 17:47 UTC and lasted 4 h 39 min, delaying ingestion of affected customer telemetry. Sentry resolved it at 2026-08-13 22:27 UTC after all backlogs were processed. _(machine-written, sol)_
- Kind: Major incident · Label: degradation (model (Jev))
- Changed: 2026-08-13 17:47 UTC · Detected: 2026-10-17 18:22 UTC
- [Source: https://stspg.io/3dh3m2pvx8f2](https://stspg.io/3dh3m2pvx8f2)
- [Company: Sentry](https://rewindex.com/company/sentry.md)
- Versions: before (none: first archived) → after incident\_version:288/rgcnzc6q3cgb@407416279356
- Change 1 of 1 for this incident

## What changed

**1. Added: Title**

```diff
+ Span & Transaction ingestion delayed in DE
```

**2. Added: Impact**

```diff
+ major
```

**3. Added: Status**

```diff
+ resolved
```

**4. Added: Start time**

```diff
+ 2026-08-13 17:47 UTC
```

**5. Added: Resolved time**

```diff
+ 2026-08-13 22:27 UTC
```

**6. Added: Affected components**

```diff
+ Alerting - EU Errors Alerting, Alerting - EU Spans Alerting, Alerting - EU Transactions Alerting, Alerting - US Errors Alerting, Alerting - US Spans Alerting, Alerting - US Transactions Alerting, EU Ingestion - EU Span Ingestion, EU Ingestion - EU Transaction Ingestion, US Ingestion - US Error Ingestion, US Ingestion - US Span Ingestion, US Ingestion - US Transaction Ingestion
```

**7. Added: Update** (investigating) · 2026-08-13 17:47 UTC

```diff
+ We are currently investigating ingestion delays for spans and transactions in DE
```

**8. Added: Update** (investigating) · 2026-08-13 17:59 UTC

```diff
+ We are currently investigating ingestion delays for spans and transactions in DE and US
```

**9. Added: Update** (investigating) · 2026-08-13 18:07 UTC

```diff
+ We are currently investigating ingestion delays for spans, transactions and alerts in DE and US
```

**10. Added: Update** (identified) · 2026-08-13 18:35 UTC

```diff
+ We've identified the source of latency and are reverting that change.
```

**11. Added: Update** (monitoring) · 2026-08-13 19:34 UTC

```diff
+ The problematic change has been reverted and we're processing backlogs.
```

**12. Added: Update** (monitoring) · 2026-08-13 19:53 UTC

```diff
+ The problematic change has been reverted and we're processing backlogs.
```

**13. Added: Update** (monitoring) · 2026-08-13 20:32 UTC

```diff
+ We've recovered all ingestion latency in DE. In US, errors have processed their backlog and we continue to make progress on spans in US.
```

**14. Added: Update** (monitoring) · 2026-08-13 21:22 UTC

```diff
+ We're continuing to make progress on the span ingestion backlog in US.
```

**15. Added: Update** (monitoring) · 2026-08-13 22:13 UTC

```diff
+ We continue to make progress on the spans backlog with an estimated completion time of 15 minutes.
```

**16. Added: Update** (resolved) · 2026-08-13 22:27 UTC

```diff
+ All backlogs have been processed.
```

## History of this incident

| When (UTC) | Change | Label |
| --- | --- | --- |
| 2026-08-13 17:47 UTC | Major incident: Span & Transaction ingestion delayed in DE (this change) | degradation |

All Sentry changes: [timeline](https://rewindex.com/company/sentry/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/i2ef7361264bf3d · Markdown: https://rewindex.com/change/i2ef7361264bf3d.md · JSON: https://rewindex.com/api/v1/changes/i2ef7361264bf3d · Generated 2026-10-18T00:37:42.464Z