Case Study - Sample Book Delivery App (Spring Boot, Spring Security , Mysql, JUnit, Integration Test, Docker, Test Container, AOP, CI/CD, Prometheus, Grafana, Github Actions)

System design exercises by Arpit Bhayani

A basic hotel reservation system with 2PC using pessimistic and optimistic locks in Go

distributed and local lock provider

In this repo I would like to show 4 strategies of concurrency control for writing data using Python SQLAlchemy ORM and PostgresSQL (however this examples could be easily transformed to plain SQL).

A basic e-commerce application is built using Go/Gin and follows micro-service architecture

Examples of applying pessimistic and optimistic concurrency control with AWS DynamoDB.

REST service that allows users to create bank accounts, transfer money between them, view them, and handle concurrent transfers requests safely.

Inflearn. 재고시스템으로 알아보는 동시성이슈 해결 방법

Pessimistic Locking example over MySQL database table row

🔐 Learning Concurrency

Concurrency Control Locking manages concurrent transactions using pessimistic locking, which locks records to prevent conflicts, and skip locking, which skips locked records to improve processing efficiency. These mechanisms ensure data consistency while optimizing performance in high-concurrency scenarios.

A Spring boot application, showcasing different locks that can be implemented in a Ticketmaster clone.

Implementando a Reserva de um Quarto de Hotel evitando conflitos com Lock Pessimista

📚 동시성 학습 저장소

A Menshop Backend Service using Nest.JS, MongoDB, Redis

Hibernate’in Pessimistic (Kötümser) ve Optimistic (İyimser) kilitleme stratejilerini Spring Boot tabanlı bir uygulama üzerinde nasıl kullanabileceğimizi gösteren bir örnek uygulamadır.

Demonstration of pessimistic vs optimistic locking strategies in Go for handling concurrent reservations, featuring race condition reproduction, performance testing, and comprehensive monitoring with Prometheus & Grafana