# Coralogix: Major incident: Log Query failures across EU1 region

**Summary:** Coralogix reported a major incident causing log query failures in Explore → Logs (v2 and Legacy), including errors accessing archived log data. It started at 2026-08-05 08:46 UTC and was resolved at 2026-08-05 09:01 UTC, lasting 15 min. Although initially reporting EU1 and US1 impact, Coralogix confirmed only EU1 was affected; all services were restored. _(machine-written, sol)_
- Kind: Major incident · Label: outage (model (Jev))
- Changed: 2026-08-05 08:46 UTC · Detected: 2026-10-17 18:22 UTC
- [Source: https://stspg.io/hhc35cqq01yr](https://stspg.io/hhc35cqq01yr)
- [Company: Coralogix](https://rewindex.com/company/coralogix.md)
- Versions: before (none: first archived) → after incident\_version:273/snct88qxgqvk@8672b4e823ff
- Change 1 of 1 for this incident

Incident page (full timeline): [Log Query failures across EU1 region](https://rewindex.com/company/coralogix/incidents/snct88qxgqvk.md)
## What changed

**1. Added: Title**

```diff
+ Log Query failures across EU1 region
```

**2. Added: Impact**

```diff
+ major
```

**3. Added: Status**

```diff
+ resolved
```

**4. Added: Start time**

```diff
+ 2026-08-05 08:46 UTC
```

**5. Added: Resolved time**

```diff
+ 2026-08-05 09:01 UTC
```

**6. Added: Affected components**

```diff
+ EU1 - Processing - Logs, EU1 - UI - Explore, Processing - Logs, UI - Explore, US1 - Processing - Logs, US1 - UI - Explore
```

**7. Added: Update** (monitoring) · 2026-08-05 08:46 UTC

```diff
+ We experienced a brief period of log query failures affecting Explore → Logs (both v2 and Legacy) in the EU1 and US1 regions. During this time, some customers may have encountered errors when running log queries or accessing archived log data. Our engineering team was actively engaged and at this time, the platform is operating normally. We will continue to monitor the situation to ensure stability. We apologize for the inconvenience and appreciate your patience.
```

**8. Added: Update** (monitoring) · 2026-08-05 08:51 UTC

```diff
+ We are continuing to monitor for any further issues.
```

**9. Added: Update** (resolved) · 2026-08-05 09:01 UTC

```diff
+ All services are currently up and running. We can confirm that the issue was affecting only EU1 region.
```

## History of this incident

| When (UTC) | Change | Label |
| --- | --- | --- |
| 2026-08-05 08:46 UTC | Major incident: Log Query failures across EU1 region (this change) | outage |

All Coralogix changes: [timeline](https://rewindex.com/company/coralogix/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/i654eea31a5f003 · Markdown: https://rewindex.com/change/i654eea31a5f003.md · JSON: https://rewindex.com/api/v1/changes/i654eea31a5f003 · Generated 2026-10-19T01:56:05.371Z