Changes / Pinecone / [Serverless][Azure][eastus2] 5xx errors on some read and write operations

Pinecone: Major incident: [Serverless][Azure][eastus2] 5xx errors on some read and write operations

Summary

Pinecone reported a major incident affecting Serverless Indexes in Azure eastus2, with 5xx errors on some read and write operations. It started at 2025-10-21 17:57 UTC and resolved at 2025-10-21 19:24 UTC, lasting 1 h 26 min. A fix was implemented; no cause was stated.

Machine-written from the diff below (Sol; type: incident outage). Check the diff before relying on it.

Major incidentLabel: outage (model (Jev), 97%)Changed Detected Source: stspg.io (opens in new tab)

What changed

AddedTitle#1
Before: not present
After: [Serverless][Azure][eastus2] 5xx errors on some read and write operations
AddedImpact#2
Before: not present
After: major
AddedStatus#3
Before: not present
After: resolved
AddedStart time#4
Before: not present
After: 2025-10-21 17:57 UTC
AddedResolved time#5
Before: not present
After: 2025-10-21 19:24 UTC
AddedAffected components#6
Before: not present
After: Azure eastus2, Serverless Indexes - Azure eastus2
AddedUpdateinvestigating#7
Before: not present
After: We are currently investigating this issue.
AddedUpdateidentified#8
Before: not present
After: The issue has been identified and a fix is being implemented.
AddedUpdatemonitoring#9
Before: not present
After: A fix has been implemented and we are monitoring the results.
AddedUpdateresolved#10
Before: not present
After: This incident has been resolved.

First version of this incident archived by Rewindex. View the live incident (opens in new tab).

History of this incident

When (UTC)ChangeKind
Major incident: [Serverless][Azure][eastus2] 5xx errors on some read and write operations (this change)
Pinecone reported a major incident affecting Serverless Indexes in Azure eastus2, with 5xx errors on some read and write operations. It started at 2025-10-21 17:57 UTC and resolved at 2025-10-21 19:24 UTC, lasting 1 h 26 min. A fix was implemented; no cause was stated.
Major incident

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