# CockroachDB: Major incident: Serverless Cluster Resource Limit Throttling

**Summary:** CockroachDB reported a major Serverless degradation in AWS eu-west-1 and AWS ap-south-1: some clusters remained throttled after resource limits were increased. It started at 2023-08-02 16:05 UTC and was resolved at 2023-08-02 19:44 UTC, lasting 3 h 39 min; previously throttled clusters now reflect resource-limit changes. _(machine-written, sol)_
- Kind: Major incident · Label: degradation (model (Jev))
- Changed: 2023-08-02 16:05 UTC · Detected: 2026-10-17 18:22 UTC
- [Source: https://stspg.io/j4czbs8w51fn](https://stspg.io/j4czbs8w51fn)
- [Company: CockroachDB](https://rewindex.com/company/cockroachdb.md)
- Versions: before (none: first archived) → after incident\_version:138/mt8gzq97rvl4@be51623fea49
- Change 1 of 1 for this incident

## What changed

**1. Added: Title**

```diff
+ Serverless Cluster Resource Limit Throttling
```

**2. Added: Impact**

```diff
+ major
```

**3. Added: Status**

```diff
+ resolved
```

**4. Added: Start time**

```diff
+ 2023-08-02 16:05 UTC
```

**5. Added: Resolved time**

```diff
+ 2023-08-02 19:44 UTC
```

**6. Added: Affected components**

```diff
+ CockroachDB Serverless
```

**7. Added: Update** (investigating) · 2023-08-02 16:05 UTC

```diff
+ Some Serverless clusters that have hit their resource limits are still being throttled even after limits have been increased. Currently only AWS eu-west-1 and ap-south-1 host clusters are impacted
```

**8. Added: Update** (investigating) · 2023-08-02 16:10 UTC

```diff
+ Some Serverless clusters that have hit their resource limits are still being throttled even after limits have been increased.
```

**9. Added: Update** (identified) · 2023-08-02 19:02 UTC

```diff
+ The scope of the impact has been limited to serverless clusters running AWS eu-west-1 and AWS ap-south-1. Clusters that have hit their resource limits will be throttled despite having their limits increased. One of two issues identified has been mitigated.
```

**10. Added: Update** (resolved) · 2023-08-02 19:44 UTC

```diff
+ This issue has now been resolved. Users with clusters that were previously throttled will now see their changes to resource limits reflected.
```

## History of this incident

| When (UTC) | Change | Label |
| --- | --- | --- |
| 2023-08-02 16:05 UTC | Major incident: Serverless Cluster Resource Limit Throttling (this change) | degradation |

All CockroachDB changes: [timeline](https://rewindex.com/company/cockroachdb/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/ieec85ed103a44d · Markdown: https://rewindex.com/change/ieec85ed103a44d.md · JSON: https://rewindex.com/api/v1/changes/ieec85ed103a44d · Generated 2026-10-18T02:54:52.514Z