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Harness Outage History

Every past Harness outage tracked by IsDown, with detection times, duration, and resolution details.

There were 354 Harness outages since October 2018. The 138 outages from the last 12 months are summarized below, with incident details, duration, and resolution information.

Minor June 5, 2026

June 2026: Intermittent 503s on IDP services

Detected Jun 5, 2026 6:56 PM EDT · Resolved Jun 5, 2026 8:34 PM EDT · Duration about 2 hours

Harness experienced intermittent 503 errors affecting the Internal Developer Portal (IDP) services for 1.6 hours. The issue impacted IDP functionality with service unavailability errors. A fix was implemented and monitored before the incident was fully resolved.

Minor June 4, 2026

June 2026: FME SDKs - SDKs falling back to polling

Detected Jun 4, 2026 10:33 AM EDT · Resolved Jun 4, 2026 12:39 PM EDT · Duration about 2 hours

Harness FME SDKs experienced streaming connection instability that caused SDKs to fall back to polling mode, resulting in delayed update propagation and increased reconnection noise in logs. The incident lasted 2.1 hours and was resolved after implementing a fix and monitoring the results.

Major June 2, 2026

June 2026: Testing Dev Status Page 3rd June

Detected Jun 2, 2026 2:58 PM EDT · Resolved Jun 2, 2026 4:10 PM EDT · Duration about 1 hour

This was a test incident for Harness's status page system that should be ignored. The test ran for 1.2 hours with a major status classification. The incident was marked as identified with a fix being implemented before being resolved.

Minor June 1, 2026

June 2026: Hosted CI Builds Failing Intermittently

Detected Jun 1, 2026 6:01 AM EDT · Resolved Jun 1, 2026 9:51 AM EDT · Duration about 4 hours

Harness experienced intermittent failures in their hosted CI builds affecting both Linux and Windows cloud build environments for 3.8 hours. The issue impacted the Continuous Integration Enterprise (CIE) service across multiple build platforms. A fix was implemented and monitored before the incident was fully resolved.

Minor May 28, 2026

May 2026: Testing Dev Status Page

Detected May 28, 2026 12:21 PM EDT · Resolved May 28, 2026 12:30 PM EDT · Duration 10 minutes

Harness experienced a minor service incident during development testing that lasted 10 minutes. The incident was identified and investigated as part of routine development testing activities. The issue was resolved within the brief 10-minute timeframe.

Minor May 27, 2026

May 2026: Pipeline logging streams experiencing degraded delivery to console.

Detected May 27, 2026 10:20 AM EDT · Resolved May 27, 2026 7:24 PM EDT · Duration about 9 hours

Harness experienced degraded delivery of pipeline logging streams to the console for 9.1 hours. The issue affected users' ability to view pipeline logs in real-time through the console interface. A fix was implemented and monitored before the incident was fully resolved.

Major May 27, 2026

May 2026: Hosted CI Builds Failing Intermittently

Detected May 27, 2026 8:35 AM EDT · Resolved May 27, 2026 9:48 PM EDT · Duration about 13 hours

Harness experienced intermittent failures in their hosted CI builds affecting both Windows and Linux cloud build environments for 13.2 hours. The issue impacted Continuous Integration Enterprise (CIE) components, causing build executions to fail unpredictably. Harness implemented a failover solution and gradual fixes throughout the incident, with full resolution achieved after monitoring confirmed the implemented changes restored normal functionality.

Major May 26, 2026

May 2026: Testing Dev Status Page incident

Detected May 26, 2026 11:43 AM EDT · Resolved May 26, 2026 11:53 AM EDT · Duration 10 minutes

Harness experienced a major service incident that lasted 10 minutes. The incident was under investigation with testing of the Dev Status Page incident messaging system. The specific services affected and resolution details were not detailed in the available incident updates.

Minor May 21, 2026

May 2026: Prod3 pipeline execution UI slowness

Detected May 21, 2026 9:55 AM EDT · Resolved May 21, 2026 12:37 PM EDT · Duration about 3 hours

Harness experienced slowness in the pipeline execution UI affecting the Continuous Delivery and Infrastructure as Code Management components for 2.7 hours. The investigation revealed that pipeline executions were functioning normally in the backend, with the slowness limited to UI updates only. The issue was identified, a fix was implemented and monitored, and the incident was fully resolved.

Minor May 20, 2026

May 2026: Prod3 pipeline slowness

Detected May 20, 2026 6:48 AM EDT · Resolved May 20, 2026 8:41 AM EDT · Duration about 2 hours

Harness experienced pipeline slowness in the Prod3 cluster affecting Continuous Delivery - Next Generation (CDNG) and Infrastructure as Code Management (IaCM) services. The engineering team implemented a fix that resolved the performance issues. The incident lasted 1.9 hours and has been fully resolved.