# Langfuse: Major incident: Degraded ingestion for 20 projects

**Summary:** _summary pending_
- Kind: Major incident · Label: major (vendor)
- Changed: 2026-09-30 08:35 UTC · Detected: 2026-10-19 17:03 UTC
- [Source: https://status.langfuse.com/incidents/01M3RS8E0MFN2SWBTNES3N7EBE](https://status.langfuse.com/incidents/01M3RS8E0MFN2SWBTNES3N7EBE)
- [Company: Langfuse](https://rewindex.com/company/langfuse.md)
- Versions: before (none: first archived) → after incident\_version:679/01M3RS8E0MFN2SWBTNES3N7EBE@a73c89103566
- Change 1 of 1 for this incident

Incident page (full timeline): [Degraded ingestion for 20 projects](https://rewindex.com/company/langfuse/incidents/01M3RS8E0MFN2SWBTNES3N7EBE.md)
## What changed

**1. Added: Title**

```diff
+ Degraded ingestion for 20 projects
```

**2. Added: Impact**

```diff
+ major
```

**3. Added: Status**

```diff
+ resolved
```

**4. Added: Start time**

```diff
+ 2026-09-30 08:35 UTC
```

**5. Added: Resolved time**

```diff
+ 2026-09-30 15:30 UTC
```

**6. Added: Update** (identified) · 2026-09-30 09:10 UTC

```diff
+ S3 backpressure leads to S3 "please slow down" errors across projects with cm* prefix
```

**7. Added: Update** (monitoring) · 2026-09-30 09:43 UTC

```diff
+ Offending workload was isolated, performance should be back to normal for other projects
```

**8. Added: Update** (resolved) · 2026-09-30 15:30 UTC

```diff
+ All projects ingesting as normal
```

## History of this incident

| When (UTC) | Change | Label |
| --- | --- | --- |
| 2026-09-30 08:35 UTC | Major incident: Degraded ingestion for 20 projects (this change) | major |

All Langfuse changes: [timeline](https://rewindex.com/company/langfuse/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/i05587383efc537 · Markdown: https://rewindex.com/change/i05587383efc537.md · JSON: https://rewindex.com/api/v1/changes/i05587383efc537 · Generated 2026-10-20T00:01:06.905Z