# Firebolt: Major incident: AWS Service Issues in US-East-1

**Summary:** Firebolt reported a major outage in US-EAST-1 from 2025-10-20 07:11 UTC to 2025-10-21 11:14 UTC (28 h 2 min), linked to a broader AWS outage. Customers may have experienced latency, query suspensions, ingestion failures and slower engine startups due to EC2 launch throttling. Firebolt marked the incident resolved and said the underlying AWS issue was fully resolved. _(machine-written, sol)_
- Kind: Major incident · Label: outage (model (Jev))
- Changed: 2025-10-20 07:11 UTC · Detected: 2026-10-17 18:22 UTC
- [Source: https://stspg.io/5bwn1q90h9gw](https://stspg.io/5bwn1q90h9gw)
- [Company: Firebolt](https://rewindex.com/company/firebolt.md)
- Versions: before (none: first archived) → after incident\_version:147/jppdkysk6k9j@ec168cc8b746
- Change 1 of 1 for this incident

## What changed

**1. Added: Title**

```diff
+ AWS Service Issues in US-East-1
```

**2. Added: Impact**

```diff
+ major
```

**3. Added: Status**

```diff
+ resolved
```

**4. Added: Start time**

```diff
+ 2025-10-20 07:11 UTC
```

**5. Added: Resolved time**

```diff
+ 2025-10-21 11:14 UTC
```

**6. Added: Affected components**

```diff
+ AWS - AWS ec2-us-east-1, AWS ec2-us-east-1, Databases, Engines, Firebolt Components - Databases, Firebolt Components - Engines
```

**7. Added: Update** (investigating) · 2025-10-20 07:11 UTC

```diff
+ Some Firebolt services may experience latency or disruptions due to an ongoing AWS outage in the US-EAST-1 region. The issue is impacting multiple AWS services, which may affect engine operations and data access in this region. Our team is actively monitoring the situation and working to minimize customer impact.  We'll share updates as more information becomes available from AWS.
```

**8. Added: Update** (identified) · 2025-10-20 15:50 UTC

```diff
+ AWS is currently throttling requests for new EC2 instance launches to aid recovery and actively working on mitigations. This may impact the start up times of your engines.
```

**9. Added: Update** (monitoring) · 2025-10-20 21:42 UTC

```diff
+ Engine and database operations in us-east-1 are generally available but may experience increased error rates as AWS continues to stabilize services. We are monitoring and will update this page once all services have been confirmed to resume normal performance levels.
```

**10. Added: Update** (resolved) · 2025-10-21 11:14 UTC

```diff
+ Post-Incident Update: On October 20, Firebolt services in the US-EAST-1 region experienced disruptions related to a broader AWS outage impacting multiple services, including DynamoDB. During this time, some customers in the us-east-1 region may have encountered increased latency, query suspensions, or ingestion job failures. The underlying AWS issue has since been fully resolved, and all Firebolt services have returned to normal operation.  No other regions were affected. We continue to monitor system performance closely to ensure stability.
```

## History of this incident

| When (UTC) | Change | Label |
| --- | --- | --- |
| 2025-10-20 07:11 UTC | Major incident: AWS Service Issues in US-East-1 (this change) | outage |

All Firebolt changes: [timeline](https://rewindex.com/company/firebolt/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/i423ab892a4c508 · Markdown: https://rewindex.com/change/i423ab892a4c508.md · JSON: https://rewindex.com/api/v1/changes/i423ab892a4c508 · Generated 2026-10-18T01:30:20.339Z