6d ago · 19 min read · A BFF that aggregates four upstream services inherits four independent failure modes. Any one of them can be unavailable, slow, or intermittently returning errors at any time. The question is not whet
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Jan 19 · 9 min read · Background When we write programs, we have a quiet assumption that goes unnoticed until it gets explicitly questioned — when you send a request, it either succeeds or fails; even when you query a database, it either succeeds or fails. It always holds...
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Apr 30, 2023 · 8 min read · Introduction In a previous article, we looked at an architectural pattern named entity-control-boundary (ECB) mapped to Spring meta-annotations for transaction management and retries. That post didn't go very deep into this architectural pattern, whi...
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Apr 13, 2023 · 5 min read · Spring Retry is a small library for retrying failed method invocations of a transient nature. Typically when interacting with another service over the network, a message broker or database. In this tutorial, we'll look at using spring retry for seria...
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Dec 8, 2022 · 4 min read · In this post, we'll use the same concept as in Transaction Retries using JavaEE and CDI with BMTs. Only this time with container-managed transactions, or CMTs which is the default mode of operation with JTA. Transaction Retries in JavaEE This article...
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Dec 4, 2022 · 6 min read · In a previous post, we demonstrated client-side transaction retries by using meta-annotations and Aspect Oriented Programming (AOP) in Spring Boot. In this post, we'll use a similar concept for a different Java stack: JavaEE (or JakartaEE as it's kno...
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Jul 24, 2022 · 16 min read · Introduction This article is part one of a series of data access best practices when using JPA and CockroachDB. The goal is to help reduce the impact of workload contention and to optimize performance. Although most of the principles are fairly frame...
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Mar 23, 2021 · 8 min read · Overview Spring and Spring Boot provides a rich ecosystem for building modern applications and services. It's a powerful platform that provides easy-to-use infrastructure abstractions and seamless integration with most databases, messaging systems, c...
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