Incident Report: Publishing Workload Service Degradation
Incident ID: IR-2026-03-07-01
Date of Incident: March 6, 2026
Severity: Low
Affected System: Web Publishing Infrastructure
Summary
On March 6, 2026, a customer initiated a publish operation for a project containing approximately 16,000 pages. The publish job generated a high volume of background processing tasks which temporarily increased server load and degraded application performance.
The service slowdown lasted approximately two minutes before the workload was halted and the system was restored to normal operation.
Impact
- Duration of service degradation: ~2 minutes
- Impacted services: Web publishing application responsiveness
- Data integrity: No data loss occurred
- Security impact: None
- Customer impact: Minimal
- Other customers affected: None
Timeline of Events
User Action
A customer initiated a publish job for a large project containing approximately 16,000 pages.
Load Detection
Elevated server load was observed shortly after the publish job began processing.
Queue Investigation
Engineering reviewed system activity and identified a high volume of background jobs in the Horizon queue related to the publish process.
Application Slowdown
The processing load temporarily reduced application responsiveness.
Mitigation
Engineering cleared the publish-related processes in order to stop the active publish job.
Customer Communication
Engineering contacted the customer and confirmed the project was a stress testing project that was not intended to be published in the production environment.
System Recovery
The server was reset to clear outstanding queue jobs and return the system to normal operating conditions.
Post-Incident Monitoring
No further performance issues were observed after recovery.
Root Cause
The publish operation generated a large number of background processing tasks which temporarily exceeded the processing capacity of the single production instance.
Additionally, the project was intended for stress testing purposes and was mistakenly published in the production environment.
Resolution
- Active publish processes were stopped.
- Outstanding Horizon queue jobs were cleared.
- The server was restarted to ensure the environment returned to a clean operational state.
Preventive Measures
The following improvements are being implemented to prevent similar incidents:
- Implementation of infrastructure autoscaling to better support large publishing workloads.
- Additional safeguards to limit or flag unusually large publish operations.
- Continued monitoring of queue workloads to detect abnormal job spikes earlier.
Final Status
The system returned to normal operation after the server reset and queue cleanup.
No additional incidents or customer impacts were observed following the event.