# Dremio: Critical incident: Queries failing in North America AWS regions

**Summary:** Dremio reported a critical incident in North America AWS regions: queries failed to execute while the site remained available. It started at 2022-02-28 18:44 UTC and was resolved at 2022-02-28 19:21 UTC, lasting 36 min. Dremio applied a mitigation and then confirmed a fix was implemented. _(machine-written, sol)_
- Kind: Major incident · Label: outage (model (Jev))
- Changed: 2022-02-28 18:44 UTC · Detected: 2026-10-17 18:22 UTC
- [Source: https://stspg.io/gv4fz7l6w0b3](https://stspg.io/gv4fz7l6w0b3)
- [Company: Dremio](https://rewindex.com/company/dremio.md)
- Versions: before (none: first archived) → after incident\_version:144/yfxsddtq8rkn@877e8eba8228
- Change 1 of 1 for this incident

## What changed

**1. Added: Title**

```diff
+ Queries failing in North America AWS regions
```

**2. Added: Impact**

```diff
+ critical
```

**3. Added: Status**

```diff
+ resolved
```

**4. Added: Start time**

```diff
+ 2022-02-28 18:44 UTC
```

**5. Added: Resolved time**

```diff
+ 2022-02-28 19:21 UTC
```

**6. Added: Affected components**

```diff
+ Dremio Cloud - US - Site Availability, Site Availability
```

**7. Added: Update** (investigating) · 2022-02-28 18:44 UTC

```diff
+ We are currently investigating the issue. The site is available, but queries are failing to execute.
```

**8. Added: Update** (identified) · 2022-02-28 18:54 UTC

```diff
+ The issue has been identified and a mitigation is being applied. Queries should be running again.
```

**9. Added: Update** (monitoring) · 2022-02-28 19:03 UTC

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

**10. Added: Update** (resolved) · 2022-02-28 19:21 UTC

```diff
+ This incident is resolved.
```

## History of this incident

| When (UTC) | Change | Label |
| --- | --- | --- |
| 2022-02-28 18:44 UTC | Critical incident: Queries failing in North America AWS regions (this change) | outage |

All Dremio changes: [timeline](https://rewindex.com/company/dremio/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/ie3fee589a1adff · Markdown: https://rewindex.com/change/ie3fee589a1adff.md · JSON: https://rewindex.com/api/v1/changes/ie3fee589a1adff · Generated 2026-10-18T03:55:43.243Z