Outage in Sonar

US Sonar Increase in Nginx Errors

Resolved Minor

March 01, 2026 - Started 9 days ago - Lasted about 5 hours
Official incident page

Incident Report

Summary AI Generated

Sonar experienced increased Nginx errors affecting the US Web Application and GraphQL API for 4.8 hours. The incident caused application slowness and elevated error rates in the US datacenter. The root cause was identified and fixed, with application health returning to normal after a gradual recovery period.

We are currently investigating this issue.

Components affected

Sonar US - Web Application Sonar US - GraphQL API

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Latest Updates ( sorted recent to last )

RESOLVED 9 days ago - at 03/01/2026 10:47AM

Application health is now back to normal.

INVESTIGATING 9 days ago - at 03/01/2026 09:32AM

The root cause has been identified and a fix applied. The system is entering full recovery.

INVESTIGATING 9 days ago - at 03/01/2026 08:09AM

We are monitoring partial recovery of the application in the US datacenter. Investigation into the root cause is ongoing.

INVESTIGATING 9 days ago - at 03/01/2026 07:22AM

We are still investigating the root cause of application slowness and increased error rate affecting US data center.

INVESTIGATING 9 days ago - at 03/01/2026 06:00AM

We are currently investigating this issue.

Latest Sonar outages

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Increase Nginx Errors - about 1 month ago

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