# PyPI (Python Infrastructure): Major incident: PyPI Elevated Error Rates

**Summary:** _summary pending_
- Kind: Major incident · Label: major (vendor)
- Changed: 2025-04-24 12:02 UTC · Detected: 2026-10-19 17:03 UTC
- [Source: https://stspg.io/l0d6qrw7xfpp](https://stspg.io/l0d6qrw7xfpp)
- [Company: PyPI (Python Infrastructure)](https://rewindex.com/company/pypi.md)
- Versions: before (none: first archived) → after incident\_version:669/jjvcvksrjc53@5d5ce460a7e1
- Change 1 of 1 for this incident

Incident page (full timeline): [PyPI Elevated Error Rates](https://rewindex.com/company/pypi/incidents/jjvcvksrjc53.md)
## What changed

**1. Added: Title**

```diff
+ PyPI Elevated Error Rates
```

**2. Added: Impact**

```diff
+ major
```

**3. Added: Status**

```diff
+ resolved
```

**4. Added: Start time**

```diff
+ 2025-04-24 12:02 UTC
```

**5. Added: Resolved time**

```diff
+ 2025-04-24 12:18 UTC
```

**6. Added: Affected components**

```diff
+ pypi.org - Backends, PyPI - pypi.org - Backends
```

**7. Added: Update** (investigating) · 2025-04-24 12:02 UTC

```diff
+ We're investigating elevated error rates for pypi.org
```

**8. Added: Update** (identified) · 2025-04-24 12:09 UTC

```diff
+ We've identified an issue with database contention arising from locking.
```

**9. Added: Update** (monitoring) · 2025-04-24 12:09 UTC

```diff
+ The locking process has been terminated and we're monitoring as things recover.
```

**10. Added: Update** (resolved) · 2025-04-24 12:18 UTC

```diff
+ This incident is resolved. We're going to do some further investigation to understand what led to the lock contention.
```

## History of this incident

| When (UTC) | Change | Label |
| --- | --- | --- |
| 2025-04-24 12:02 UTC | Major incident: PyPI Elevated Error Rates (this change) | major |

All PyPI (Python Infrastructure) changes: [timeline](https://rewindex.com/company/pypi/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/i7b3e264dbf7dd3 · Markdown: https://rewindex.com/change/i7b3e264dbf7dd3.md · JSON: https://rewindex.com/api/v1/changes/i7b3e264dbf7dd3 · Generated 2026-10-20T00:00:41.034Z