# Pinecone: Critical incident: [SERVERLESS][Azure][eastus2] 5xx errors for some namespaces

**Summary:** Pinecone reported a critical incident causing 5xx errors for some Serverless namespaces in Azure eastus2. It started at 2026-07-21 19:10 UTC and was resolved at 2026-07-21 19:40 UTC, with a reported duration of 29 min; Pinecone identified the issue and implemented a fix but did not specify the cause. _(machine-written, sol)_
- Kind: Major incident · Label: outage (model (Jev))
- Changed: 2026-07-21 19:10 UTC · Detected: 2026-10-17 18:22 UTC
- [Source: https://stspg.io/84vynt818w3j](https://stspg.io/84vynt818w3j)
- [Company: Pinecone](https://rewindex.com/company/pinecone.md)
- Versions: before (none: first archived) → after incident\_version:35/g135ndchmrf8@b078f7ea3bfd
- Change 1 of 1 for this incident

## What changed

**1. Added: Title**

```diff
+ [SERVERLESS][Azure][eastus2] 5xx errors for some namespaces
```

**2. Added: Impact**

```diff
+ critical
```

**3. Added: Status**

```diff
+ resolved
```

**4. Added: Start time**

```diff
+ 2026-07-21 19:10 UTC
```

**5. Added: Resolved time**

```diff
+ 2026-07-21 19:40 UTC
```

**6. Added: Affected components**

```diff
+ Azure eastus2, Serverless Indexes - Azure eastus2
```

**7. Added: Update** (investigating) · 2026-07-21 19:10 UTC

```diff
+ We are currently investigating this issue.
```

**8. Added: Update** (identified) · 2026-07-21 19:39 UTC

```diff
+ The issue has been identified and a fix is being implemented.
```

**9. Added: Update** (resolved) · 2026-07-21 19:40 UTC

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

## History of this incident

| When (UTC) | Change | Label |
| --- | --- | --- |
| 2026-07-21 19:10 UTC | Critical incident: \[SERVERLESS\]\[Azure\]\[eastus2\] 5xx errors for some namespaces (this change) | outage |

All Pinecone changes: [timeline](https://rewindex.com/company/pinecone/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._


---
Canonical: https://rewindex.com/change/ib7a0c05fe82196 · Markdown: https://rewindex.com/change/ib7a0c05fe82196.md · JSON: https://rewindex.com/api/v1/changes/ib7a0c05fe82196 · Generated 2026-10-18T03:31:48.259Z