# Codecov: Major incident: Upload Processing Queue Slowdown

**Summary:** Codecov reported a major upload processing queue slowdown affecting Codecov Backend, delaying upload processing. The incident started at 2026-02-26 21:20 UTC and was resolved at 2026-02-27 07:56 UTC, lasting 10 h 36 min. A fix was implemented at 02-27 00:39 UTC; no cause was stated. _(machine-written, sol)_
- Kind: Major incident · Label: degradation (model (Jev))
- Changed: 2026-02-26 21:20 UTC · Detected: 2026-10-17 18:22 UTC
- [Source: https://stspg.io/zwqqv28zqb83](https://stspg.io/zwqqv28zqb83)
- [Company: Codecov](https://rewindex.com/company/codecov.md)
- Versions: before (none: first archived) → after incident\_version:182/rdmqkqynt4dx@681b9de878b5
- Change 1 of 1 for this incident

## What changed

**1. Added: Title**

```diff
+ Upload Processing Queue Slowdown
```

**2. Added: Impact**

```diff
+ major
```

**3. Added: Status**

```diff
+ resolved
```

**4. Added: Start time**

```diff
+ 2026-02-26 21:20 UTC
```

**5. Added: Resolved time**

```diff
+ 2026-02-27 07:56 UTC
```

**6. Added: Affected components**

```diff
+ Codecov Backend
```

**7. Added: Update** (investigating) · 2026-02-26 21:20 UTC

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

**8. Added: Update** (investigating) · 2026-02-26 22:26 UTC

```diff
+ We are continuing to investigate this issue.
```

**9. Added: Update** (identified) · 2026-02-26 22:39 UTC

```diff
+ We have identified the issue and are deploying a fix.
```

**10. Added: Update** (investigating) · 2026-02-26 23:47 UTC

```diff
+ We are continuing to investigate this issue.
```

**11. Added: Update** (identified) · 2026-02-27 00:27 UTC

```diff
+ We have identified a solution and are deploying a fix.
```

**12. Added: Update** (monitoring) · 2026-02-27 00:39 UTC

```diff
+ A fix has been implemented and we are monitoring the results.
```

**13. Added: Update** (monitoring) · 2026-02-27 01:12 UTC

```diff
+ We are continuing to monitor for any further issues.
```

**14. Added: Update** (resolved) · 2026-02-27 07:56 UTC

```diff
+ This incident has been resolved. We will continue monitoring for any changes.
```

## History of this incident

| When (UTC) | Change | Label |
| --- | --- | --- |
| 2026-02-26 21:20 UTC | Major incident: Upload Processing Queue Slowdown (this change) | degradation |

All Codecov changes: [timeline](https://rewindex.com/company/codecov/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/id47ee581c60fec · Markdown: https://rewindex.com/change/id47ee581c60fec.md · JSON: https://rewindex.com/api/v1/changes/id47ee581c60fec · Generated 2026-10-18T00:37:40.206Z