School ERP System Architecture: Handling High-Concurrency Parent Portals

Educational ERP systems experience unique traffic patterns: long periods of steady administrative usage interrupted by sudden, massive concurrency spikes when report cards are published or fee submission deadlines arrive. ### 1. Scaling SKLOPS (https://sklops.com/) During peak exam result releases, thousands of parents log into the mobile app and portal simultaneously. Here is how we engineered **SKLOPS** for seamless responsiveness: - **Asynchronous PDF Generation:** Generating heavy PDF report cards with charts on-the-fly blocks web worker threads. We pre-generate report card PDFs using background queue workers and store them on Cloud Object Storage (S3 / DigitalOcean Spaces). - **Payment Gateway Idempotency:** Online fee submissions require strict idempotency keys to prevent double-charging parents during network drops. - **Database Read Replicas:** Admin reporting queries run against MySQL read replicas, keeping the primary master database 100% available for parent fee transactions. ### 2. Real-Time Parent Notifications Parents receive instant push notifications for attendance alerts, homework assignments, and fee receipts via Firebase Cloud Messaging (FCM) integrated directly into the backend workflow.