A PostgreSQL order commit succeeded while its Kafka event disappeared. This production-focused guide shows how a Spring Boot transactional outbox makes delivery durable, retryable, observable, and safe for at-least-once processing.
Spring Boot Saved the Order. Kafka Never Received the Event. Read More »
A healthy-path load test missed the retry storm. Here is how 300 customer requests became nearly 900 downstream calls—and how we redesigned the test.
Our Load Test Passed Because It Never Triggered Retries Read More »
Embedding file content in JSON turned a modest Spring Boot upload into unpredictable heap pressure—and showed us that content type is also a resource model.
A PostgreSQL index scan still processed 8.7 million rows because a materialized CTE applied selective filters after an expensive join in production.
PostgreSQL Used the Index. It Still Processed Millions of Rows. Read More »