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K Kaunain Ahmad

Live Examination Results Platform

High-concurrency nationwide board exam results platform designed for ultra low-latency database queries under peak loads.

Nationwide Scale Peak Traffic Handling Low Latency

Jagran New Media
2021
Architecture Overview • Senior Software Developer

Live Examination Results Platform

Core Capabilities
High Concurrency Architecture Query Optimization Load Balancing
Tech Stack
Java Spring Boot MySQL HAProxy High Concurrency Redis

Executive Summary

The Live Results Platform delivers nationwide Class 10th and 12th board exam results (CBSE, ICSE, UP Board, and State Boards) to millions of anxious students and parents concurrently upon release.

Traffic spikes from baseline to tens of thousands of requests per second within seconds of an announcement, requiring an ultra-resilient, read-optimized backend architecture.


Engineering Highlights

1. High-Concurrency Query Optimization

  • Engineered specialized read-heavy MySQL table partitions and indexed lookup keys to deliver roll-number results in under 50 milliseconds.
  • Designed in-memory caching layers and result pre-computation pipelines to prevent database exhaustion during peak spikes.

2. High Availability & Traffic Management

  • Configured HAProxy load-balancing clusters and connection pooling strategies across backend Java service instances.
  • Conducted extensive stress and load testing to validate stability under peak nationwide result traffic events with zero downtime.

Technical Stack

  • Backend: Java, Spring Boot, JDBC / Hibernate
  • Database & Cache: MySQL (Partitioned), Redis
  • Networking: HAProxy, Nginx, Linux Tuning

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