# Honeycomb: Major incident: Query interuption due to database failover in the EU region

**Summary:** Honeycomb reported a major EU-region query outage after an automated database failover at 12:50 UTC affected query engine connection pools; queries failed for roughly 10 minutes before self-resolving. The listed start is 2026-05-01 13:22 UTC and resolution is 2026-05-01 12:30 UTC; computed duration is unknown. _(machine-written, sol)_
- Kind: Major incident · Label: outage (model (Jev))
- Changed: 2026-05-01 13:22 UTC · Detected: 2026-10-17 18:22 UTC
- [Source: https://stspg.io/6s5q2l7ggyjc](https://stspg.io/6s5q2l7ggyjc)
- [Company: Honeycomb](https://rewindex.com/company/honeycomb.md)
- Versions: before (none: first archived) → after incident\_version:279/n855d8kzp32y@26b8ef999976
- Change 1 of 1 for this incident

## What changed

**1. Added: Title**

```diff
+ Query interuption due to database failover in the EU region
```

**2. Added: Impact**

```diff
+ major
```

**3. Added: Status**

```diff
+ resolved
```

**4. Added: Start time**

```diff
+ 2026-05-01 13:22 UTC
```

**5. Added: Resolved time**

```diff
+ 2026-05-01 12:30 UTC
```

**6. Added: Update** (resolved) · 2026-05-01 12:30 UTC

```diff
+ At 12:50, our main database underwent an automated failover. This failover led to issues with some of our query engine connection pools, and caused queries to fail for roughly 10 minutes before self resolving.
```

## History of this incident

| When (UTC) | Change | Label |
| --- | --- | --- |
| 2026-05-01 13:22 UTC | Major incident: Query interuption due to database failover in the EU region (this change) | outage |

All Honeycomb changes: [timeline](https://rewindex.com/company/honeycomb/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/i41ce64ab87bcd1 · Markdown: https://rewindex.com/change/i41ce64ab87bcd1.md · JSON: https://rewindex.com/api/v1/changes/i41ce64ab87bcd1 · Generated 2026-10-18T02:31:28.803Z