Using Oracle Database with Docker for Spring Boot Integration Testing
Learn how to run Oracle Free in Docker and integrate it with Spring Boot for reliable integration testing
blog.suje.sh
Notes on software, systems, and programming.
Solving N+1 and Playing with LISTAGG (Oracle/H2)
An exploratory deep-dive into using QueryDSL to solve N+1, build type-safe dynamic queries, and leverage LISTAGG in Oracle/H2 for efficient read models.
Distributed Locks and Fencing Tokens — Handling Concurrency Safely in Microservices
A practical explanation of distributed locks, why they are not enough on their own, and how fencing tokens prevent race conditions in microservice architectures.
Circuit Breakers, Retries, Backoff, and Timeouts — Making Microservices Resilient
A practical explanation of timeouts, retries, exponential backoff, and circuit breakers — and how they work together to prevent cascading failures in distributed systems.
Understanding Idempotency — Building Reliable APIs and Microservices
A simple explanation of idempotency and how it helps design reliable, fault-tolerant APIs in Spring Boot microservices.