# Sentry: Critical incident: Error ingestion degraded in US region

**Summary:** Sentry reported critical degradation of US Error Ingestion and US Errors Alerting, delaying ingested errors from 2026-07-10 22:43 UTC to 2026-07-11 03:34 UTC (4 h 51 min). Sentry confirmed the backlog was processed at resolution; no specific cause was stated. _(machine-written, sol)_
- Kind: Major incident · Label: degradation (model (Jev))
- Changed: 2026-07-10 22:43 UTC · Detected: 2026-10-17 18:22 UTC
- [Source: https://stspg.io/bw7pn5bh3bh2](https://stspg.io/bw7pn5bh3bh2)
- [Company: Sentry](https://rewindex.com/company/sentry.md)
- Versions: before (none: first archived) → after incident\_version:288/x19gt7qcgcwb@fa548a4b0607
- Change 1 of 1 for this incident

## What changed

**1. Added: Title**

```diff
+ Error ingestion degraded in US region
```

**2. Added: Impact**

```diff
+ critical
```

**3. Added: Status**

```diff
+ resolved
```

**4. Added: Start time**

```diff
+ 2026-07-10 22:43 UTC
```

**5. Added: Resolved time**

```diff
+ 2026-07-11 03:34 UTC
```

**6. Added: Affected components**

```diff
+ Alerting - US Errors Alerting, US Ingestion - US Error Ingestion
```

**7. Added: Update** (investigating) · 2026-07-10 22:43 UTC

```diff
+ We are currently investigating this issue.
```

**8. Added: Update** (identified) · 2026-07-10 23:02 UTC

```diff
+ We have identified the problem and are working on a fix, ingested errors are delayed and will be processed once the fix is in place.
```

**9. Added: Update** (identified) · 2026-07-11 00:04 UTC

```diff
+ We have identified the problem and are working on recovery. New errors are being processed in real time and we are in the process of consuming backlogged errors.
```

**10. Added: Update** (identified) · 2026-07-11 00:56 UTC

```diff
+ We are still working on recovery. New errors should be processed in real time, and we are working on recovering historical data.
```

**11. Added: Update** (identified) · 2026-07-11 01:46 UTC

```diff
+ We expect recovery of historical data to be complete within the next 2 hours.
```

**12. Added: Update** (identified) · 2026-07-11 02:37 UTC

```diff
+ We have processed the majority of our backlog. We are now recovering an additional 25M error events ranging from 22:20 to 23:20 UTC, which should complete in the next 2 hours
```

**13. Added: Update** (monitoring) · 2026-07-11 03:28 UTC

```diff
+ We have processed the majority of our backlog. We are now recovering the tail of the backlog.
```

**14. Added: Update** (resolved) · 2026-07-11 03:34 UTC

```diff
+ We have processed the backlog.
```

## History of this incident

| When (UTC) | Change | Label |
| --- | --- | --- |
| 2026-07-10 22:43 UTC | Critical incident: Error ingestion degraded in US region (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/i596cdc2c5203e7 · Markdown: https://rewindex.com/change/i596cdc2c5203e7.md · JSON: https://rewindex.com/api/v1/changes/i596cdc2c5203e7 · Generated 2026-10-18T02:54:10.236Z