# Census: Major incident: Brief downtime for unscheduled database maintenance

**Summary:** Census reported a major outage affecting the Census Sync Management UI and Sync Engine during unscheduled emergency maintenance of a primary database. Users could see UI and API downtime; failed syncs would be automatically retried. The incident started at 2024-06-03 19:37 UTC and was resolved at 2024-06-03 19:42 UTC, with a reported duration of 4 min. _(machine-written, sol)_
- Kind: Major incident · Label: outage (model (Jev))
- Changed: 2024-06-03 19:37 UTC · Detected: 2026-10-17 18:22 UTC
- [Source: https://stspg.io/5ltq5pxz16p6](https://stspg.io/5ltq5pxz16p6)
- [Company: Census](https://rewindex.com/company/census.md)
- Versions: before (none: first archived) → after incident\_version:136/w6qwp122rlf7@3b1281575aa5
- Change 1 of 1 for this incident

## What changed

**1. Added: Title**

```diff
+ Brief downtime for unscheduled database maintenance
```

**2. Added: Impact**

```diff
+ major
```

**3. Added: Status**

```diff
+ resolved
```

**4. Added: Start time**

```diff
+ 2024-06-03 19:37 UTC
```

**5. Added: Resolved time**

```diff
+ 2024-06-03 19:42 UTC
```

**6. Added: Affected components**

```diff
+ Census Sync Management UI, Sync Engine
```

**7. Added: Update** (identified) · 2024-06-03 19:37 UTC

```diff
+ We are performing unscheduled emergency maintenance of one of our primary databases. Users may see brief downtime of the Census UI and API. Syncs that fail due to this will be automatically retried
```

**8. Added: Update** (resolved) · 2024-06-03 19:42 UTC

```diff
+ This incident has been resolved.
```

## History of this incident

| When (UTC) | Change | Label |
| --- | --- | --- |
| 2024-06-03 19:37 UTC | Major incident: Brief downtime for unscheduled database maintenance (this change) | outage |

All Census changes: [timeline](https://rewindex.com/company/census/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/iaf7d74d1faa2b0 · Markdown: https://rewindex.com/change/iaf7d74d1faa2b0.md · JSON: https://rewindex.com/api/v1/changes/iaf7d74d1faa2b0 · Generated 2026-10-18T02:55:13.585Z