Root Cause Analysis

Incident Summary:
On August 27th, 2026, users in the CDG SL1 Production environment experienced intermittent issues accessing Career Site functionalities.

Impact:
Intermittent failures while accessing Career Site functionality, resulting in a degraded user experience and partial service disruption during the incident window.

Root Cause:
The issue was caused by a sudden increase in traffic that temporarily exceeded the available service capacity. During the resulting scale-up activity, newly provisioned application capacity required additional time to become fully operational and could not immediately accommodate the increased demand. The limited capacity buffer combined with the application startup time resulted in intermittent service failures until sufficient capacity was available to handle the traffic.

Resolution:
The service capacity and scaling configuration were adjusted to maintain an appropriate capacity buffer and better accommodate sudden increases in traffic. The affected service was also redeployed to restore stability.

Preventive Measures:

• Application startup and initialization processes will be optimized to reduce the time required for newly provisioned capacity to become fully operational
• Baseline capacity and scaling thresholds will be reviewed and optimized to maintain sufficient buffer for sudden increases in traffic
• Capacity and application health will continue to be monitored during traffic fluctuations to ensure sufficient resources are available to maintain service stability