Changes / Pinecone / [Serverless][AWS][us-east-1] 5xx errors on write operations for some indexes

Pinecone: Major incident: [Serverless][AWS][us-east-1] 5xx errors on write operations for some indexes

Summary

Pinecone reported a major incident causing 5xx errors on write operations for some Serverless indexes in AWS us-east-1. It started at 2025-09-09 12:55 UTC and was resolved at 2025-09-09 14:40 UTC, lasting 1 h 44 min; a fix was implemented at 09-09 13:43 UTC.

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

Major incidentLabel: outage (model (Jev), 99%)Changed Detected Source: stspg.io (opens in new tab)

What changed

AddedTitle#1
Before: not present
After: [Serverless][AWS][us-east-1] 5xx errors on write operations for some indexes
AddedImpact#2
Before: not present
After: major
AddedStatus#3
Before: not present
After: resolved
AddedStart time#4
Before: not present
After: 2025-09-09 12:55 UTC
AddedResolved time#5
Before: not present
After: 2025-09-09 14:40 UTC
AddedAffected components#6
Before: not present
After: AWS us-east-1, Serverless Indexes - AWS us-east-1
AddedUpdateinvestigating#7
Before: not present
After: We are currently investigating this issue.
AddedUpdatemonitoring#8
Before: not present
After: A fix has been implemented and we are monitoring the results.
AddedUpdateresolved#9
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][AWS][us-east-1] 5xx errors on write operations for some indexes (this change)
Pinecone reported a major incident causing 5xx errors on write operations for some Serverless indexes in AWS us-east-1. It started at 2025-09-09 12:55 UTC and was resolved at 2025-09-09 14:40 UTC, lasting 1 h 44 min; a fix was implemented at 09-09 13:43 UTC.
Major incident

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