# Semgrep: Major incident: Scheduling delays for Semgrep Managed Scanning (SMS)

**Summary:** Semgrep reported major scheduling delays in Semgrep Managed Scanning (SMS), with some scans failing to execute. Recorded start: 2026-05-19 18:54 UTC, with reported onset approximately 18:30 UTC; resolved: 2026-05-19 21:33 UTC; duration: 2 h 38 min. After a system change was deployed, scheduling queues and scan success rates began recovering. _(machine-written, sol)_
- Kind: Major incident · Label: degradation (model (Jev))
- Changed: 2026-05-19 18:54 UTC · Detected: 2026-10-17 18:22 UTC
- [Source: https://stspg.io/qx2gg6kfdvdv](https://stspg.io/qx2gg6kfdvdv)
- [Company: Semgrep](https://rewindex.com/company/semgrep.md)
- Versions: before (none: first archived) → after incident\_version:316/71vfjvft3q8x@2c5e1350d51d
- Change 1 of 1 for this incident

## What changed

**1. Added: Title**

```diff
+ Scheduling delays for Semgrep Managed Scanning (SMS)
```

**2. Added: Impact**

```diff
+ major
```

**3. Added: Status**

```diff
+ resolved
```

**4. Added: Start time**

```diff
+ 2026-05-19 18:54 UTC
```

**5. Added: Resolved time**

```diff
+ 2026-05-19 21:33 UTC
```

**6. Added: Affected components**

```diff
+ Managed Scans, semgrep.dev - Managed Scans
```

**7. Added: Update** (investigating) · 2026-05-19 18:54 UTC

```diff
+ We are investigating delays scheduling SMS scans. This issue began at approximately 18:30 UTC today.
```

**8. Added: Update** (investigating) · 2026-05-19 19:21 UTC

```diff
+ We are continuing to investigate the issue. We will post updates when further information is available.
```

**9. Added: Update** (identified) · 2026-05-19 19:47 UTC

```diff
+ We have identified a likely cause of this incident. We are currently rolling out a change to address it.
```

**10. Added: Update** (identified) · 2026-05-19 21:07 UTC

```diff
+ Since the beginning of the incident, a portion of SMS scans have failed to execute. We have deployed a change to the system. We are seeing scheduling queues begin to recover, and we're continuing to monitor the situation.
```

**11. Added: Update** (monitoring) · 2026-05-19 21:26 UTC

```diff
+ The scan success rate is recovering. We are continuing to monitor the system.
```

**12. Added: Update** (resolved) · 2026-05-19 21:33 UTC

```diff
+ This incident has been resolved. We are continuing to monitor the system.
```

## History of this incident

| When (UTC) | Change | Label |
| --- | --- | --- |
| 2026-05-19 18:54 UTC | Major incident: Scheduling delays for Semgrep Managed Scanning (SMS) (this change) | degradation |

All Semgrep changes: [timeline](https://rewindex.com/company/semgrep/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/i3ee4d94f6fbdf6 · Markdown: https://rewindex.com/change/i3ee4d94f6fbdf6.md · JSON: https://rewindex.com/api/v1/changes/i3ee4d94f6fbdf6 · Generated 2026-10-18T00:38:40.337Z