The root cause was database connection pool exhaustion triggered by a sudden increase in concurrent requests to the Mobile and Web API services.
The devops team scaled up the database connections to handle the increased load. System performance stabilized after the scale-up completed. Continuous monitoring was enabled to validate stability.
Actions Taken:
Short-term
- Verified successful scale-up and confirmed service recovery.
- Enabled real-time monitoring on database connection utilization.
- Validated API stability post scale-up using Better Stack

Long-term

- Optimize database pooling configuration to better handle high concurrency.
- Implement proactive alerts for connection pool exhaustion and sudden traffic spikes.
- Fine-tune auto-scaling thresholds to trigger earlier under high load.
- Review and upgrade service plan or database tier to improve responsiveness during scaling events.