# Census: Major incident: Sync Outage in azure-eastus region

**Summary:** Census reported a major Sync Engine outage in azure-eastus starting 2026-10-01 14:20 UTC, with syncs failing amid spotty Azure Redis connectivity. Redis connectivity was restored and syncs were completing successfully by 2026-10-01 15:14 UTC; the incident was resolved at 2026-10-01 17:36 UTC, lasting 3 h 16 min. _(machine-written, sol)_
- Kind: Major incident · Label: outage (model (Jev))
- Changed: 2026-10-01 14:20 UTC · Detected: 2026-10-17 18:22 UTC
- [Source: https://stspg.io/j20p52dgcplj](https://stspg.io/j20p52dgcplj)
- [Company: Census](https://rewindex.com/company/census.md)
- Versions: before (none: first archived) → after incident\_version:136/hy8fjk7lb021@87d9d162478e
- Change 1 of 1 for this incident

## What changed

**1. Added: Title**

```diff
+ Sync Outage in azure-eastus region
```

**2. Added: Impact**

```diff
+ major
```

**3. Added: Status**

```diff
+ resolved
```

**4. Added: Start time**

```diff
+ 2026-10-01 14:20 UTC
```

**5. Added: Resolved time**

```diff
+ 2026-10-01 17:36 UTC
```

**6. Added: Affected components**

```diff
+ Sync Engine
```

**7. Added: Update** (identified) · 2026-10-01 14:20 UTC

```diff
+ Syncs running in our azure-eastus region are currently not succeeding due to a partial service outage
```

**8. Added: Update** (identified) · 2026-10-01 14:53 UTC

```diff
+ Connectivity to Azure Redis continues to be spotty in azure-eastus. Some syncs may see recovery, at least intermittently.
```

**9. Added: Update** (monitoring) · 2026-10-01 15:14 UTC

```diff
+ Connectivity to Redis in azure-eastus too has been restored. Syncs are now completing successfully. We are continuing to monitor the situation.
```

**10. Added: Update** (resolved) · 2026-10-01 17:36 UTC

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

## History of this incident

| When (UTC) | Change | Label |
| --- | --- | --- |
| 2026-10-01 14:20 UTC | Major incident: Sync Outage in azure-eastus region (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/ie162f5e03767eb · Markdown: https://rewindex.com/change/ie162f5e03767eb.md · JSON: https://rewindex.com/api/v1/changes/ie162f5e03767eb · Generated 2026-10-18T03:33:55.305Z