# Dagster: Critical incident: Partial outage of Dagster Cloud

**Summary:** Dagster Cloud had a vendor-rated critical partial outage affecting DNS routing, API and Dagster Cloud UI, starting 2023-06-14 17:44 UTC and lasting 16 min until resolution at 2023-06-14 18:00 UTC. DNS records were updated and propagating; users still unable to access Dagster Cloud were advised to clear their DNS cache. _(machine-written, sol)_
- Kind: Major incident · Label: outage (model (Jev))
- Changed: 2023-06-14 17:44 UTC · Detected: 2026-10-17 18:22 UTC
- [Source: https://stspg.io/lpnp9bynxxc4](https://stspg.io/lpnp9bynxxc4)
- [Company: Dagster](https://rewindex.com/company/dagster.md)
- Versions: before (none: first archived) → after incident\_version:141/3bs346nb3fdy@8f18ead7c083
- Change 1 of 1 for this incident

## What changed

**1. Added: Title**

```diff
+ Partial outage of Dagster Cloud
```

**2. Added: Impact**

```diff
+ critical
```

**3. Added: Status**

```diff
+ resolved
```

**4. Added: Start time**

```diff
+ 2023-06-14 17:44 UTC
```

**5. Added: Resolved time**

```diff
+ 2023-06-14 18:00 UTC
```

**6. Added: Affected components**

```diff
+ API, Dagster Cloud UI
```

**7. Added: Update** (investigating) · 2023-06-14 17:44 UTC

```diff
+ We are currently investigating an outage affecting dagster.cloud DNS routing
```

**8. Added: Update** (investigating) · 2023-06-14 17:51 UTC

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

**9. Added: Update** (resolved) · 2023-06-14 18:00 UTC

```diff
+ DNS records have been updated and are propagating. Users unable to access Dagster Cloud should clear their DNS cache.
```

## History of this incident

| When (UTC) | Change | Label |
| --- | --- | --- |
| 2023-06-14 17:44 UTC | Critical incident: Partial outage of Dagster Cloud (this change) | outage |

All Dagster changes: [timeline](https://rewindex.com/company/dagster/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._


---
Canonical: https://rewindex.com/change/i92f3285546f139 · Markdown: https://rewindex.com/change/i92f3285546f139.md · JSON: https://rewindex.com/api/v1/changes/i92f3285546f139 · Generated 2026-10-18T02:55:27.924Z