Eventual Consistency

The Two-Phase Commit (or 2PC) is a popular protocol in distributed transactions to ensure atomicity. Whoa, quite a few big words there, right? Don’t worry, once these jargons are out of the way, this is a fairly simple strategy to understand. So, lets dive right in! Things to know. Before we go deeper…

What is CAP Theorem? CAP Theorem is a concept in theoretical computer science that states that distributed data stores can only provide two of the three desired characteristics: consistency, availability, and partition tolerance. In other words, when a network failure occurs, a distributed database system must choose between either providing consistency or availability. Consistency vs Availability vs Partition tolerance

This article aim is to illustrate a way to Integrate SAGA pattern with MicroProfile LRA and design a central Orchestrator framework component to offload the complex task part of transaction management and data consistency, including retries, compensation, rollback, and completion for Eventual Consistency Micro services . The most challenging aspect…

Event sourcing is a software development pattern that has been gaining popularity in recent years. It offers a way to build scalable and fault-tolerant systems that can handle large amounts of data and complex business logic. …

In this article, we delve into the topic of writing an idempotent processor capable of handling message duplication and other forms of inconsistent data in an environment that operates on an at-least-once message delivery system. Cloud providers such as AWS, Azure, GCP, etc. offer managed solutions for message delivery, as…

Tackling consistency aspects in a distributed system — @Figaro Classifieds ou platforms brings new jobs, new homes, new leads to our clients, it requires a kind of faithful and scrupulous IT. Previous Katas about hexagonal architecture and test automation for micro-services in Golang gave some basis for building applications. Micro-services are aimed to communicate massively with other system…

Chingari’s 50-member tech team formed over a couple of years built the first social media platform that rewards its Content Creators and Users for earning passive income through Crypto. Gari service and Transaction Sync service are the primary services responsible for blockchain integration. High-level Architecture for Blockchain integration: Gari Service’s…

How to manage and persist the data in the Microservice Architecture pattern. In this article, we will go over how to save and retrieve data. CONTEXT Imagine we start developing an e-commerce application. We need to store the customer’s data in the system and use the same data when a customer…

Eventual consistency in practice. Amazon uses a highly decentralized, loosely coupled, service oriented architecture consisting of hundreds of services. At Amazon, SLAs are expressed and measured at the 99.9th percentile of the distribution, because: - An SLA stated in terms of mean or median response times fails to address performance issues…