Latest updates for Cqrs

Fresh curated links around CQRS are collected here so marketers can spot useful updates and turn timely ideas into posts faster.

Recent items include:

  • Как сделать приложение быстрым и надёжным с помощью межсервисных запросов
  • Read/Write Quorums and the Algebra of Consistency: Why N, R, and W Aren’t Just Configuration Knobs
  • Система триггеров на событиях Change Stream в MongoDB

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habr.com /1 month ago

Как сделать приложение быстрым и надёжным с помощью межсервисных запросов

Микросервисы обещают независимость и гибкость, но вместе с этим добавляют новый класс проблем: задержки между сервисами, каскадные сбои и сложность управления зависимостями. В стат...

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javacodegeeks.com /1 month ago

Read/Write Quorums and the Algebra of Consistency: Why N, R, and W Aren’t Just Configuration Knobs

CAP and PACELC tell you what’s possible. Quorum math tells you exactly how to get there, one replica at a time. Most engineers meet N, R, and W as three numbers in a config file: r...

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habr.com /1 month ago

Система триггеров на событиях Change Stream в MongoDB

Почти любая распределенная платформа рано или поздно сталкивается с необходимостью синхронизировать данные между своими системами. И чем выше требования к надежности и скорости дос...

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javacodegeeks.com /1 month ago

Sagas vs. Two-Phase Commit: Two Fundamentally Different Answers to Distributed Transactions

Coordinated blocking consistency against compensating-action eventual consistency — and why most modern systems quietly picked the second option. Place an order that touches invent...

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javacodegeeks.com /1 month ago

CRDTs: How Distributed Systems Merge Conflicting Writes Without Coordination

Distributed systems often need to handle concurrent writes from multiple replicas. In a traditional design, coordination, locking, or consensus decides which write wins. CRDTs—Conf...

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dev.to /1 week ago

Reads Are Subscriptions - Migrating from Zustand to Coaction

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javacodegeeks.com /5 days ago

Delta-State CRDTs: Solving the Bandwidth Problem Coordination-Free Replication Creates

CRDTs let replicas merge concurrent edits without coordination. The catch is what it costs to keep them talking to each other, and how delta-state CRDTs quietly fix it. Coordinatio...

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dzone.com /1 month ago

Designing a Reliable Data Synchronization Layer: Idempotency, Ownership, and Observability

In a lot of organizations, the real integration platform is a person. Someone exports orders from the ERP every morning and pastes them into the planning tool. Someone else re-type...

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habr.com /1 month ago

redb.Route — коннектор Amazon SQS + SNS, at-least-once и Publish-Subscribe через SNS→SQS. Уходим от MassTransit

series redb ecosystemПро Kafka и RabbitMQ в этой серии уже было. Теперь — Amazon SQS, и вместе с ним в одном пакете SNS: два транспорта, потому что в мире AWS они ходят парой. Конн...

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habr.com /3 weeks ago

River OSS и Kafka: почему transactional outbox не гарантирует порядок событий агрегата

Меня зовут Василий Миловидов, я системный архитектор в крупной компании. Мы строим обмен между сервисами на событиях: сервис меняет агрегат в PostgreSQL, в той же транзакции кладёт...

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habr.com /1 month ago

redb.Route — коннектор RabbitMQ: RPC, конкурирующие консьюмеры и dead-letter. Уходим от MassTransit

Про Kafka в этой серии уже было. Теперь — RabbitMQ, и с упором на то, как им пользоваться. Коннектор redb.Route.RabbitMQ — поверх официального RabbitMQ.Client 7.x, но писать вам пр...

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dzone.com /1 month ago

Moving Beyond MediatR

For years, the MediatR package has been a default inclusion in almost every new .NET project template. It is frequently hailed as the gold standard for decoupling controllers or mi...

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habr.com /2 weeks ago

INDB: когда все лгут, помнит, что вы видели

В любой записи в базу зашито допущение: у факта одно значение. Два несовпадающих наблюдения об одном объекте — конфликт, который положено разрешить до коммита, и разрешается он UPD...

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dev.to /3 weeks ago

Event-Driven Architecture on AWS: SQS vs SNS vs EventBridge vs Kinesis — Patterns, Anti-Patterns, and When to Use What

Event-driven architecture (EDA) is how modern distributed systems communicate at scale. Instead of services calling each other directly (tight coupling), services emit events ("thi...

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dev.to /1 month ago

SOURCING & CIRCUIT BREAKER ENGINE FULLFГѓЛњRT

EVENT SOURCING & CIRCUIT BREAKER ENGINE FULLFØRT Ingen kompromisser! Vi har bygget og verifisert en robust, uforanderlig EventStore med Circuit Breaker (Graceful Degradatio...

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dzone.com /1 week ago

Designing Replay-Safe CDC Pipelines With Kafka, Debezium, and Recovery Contracts

Change data capture (CDC) pipelines look straightforward on paper: capture database changes, publish them to Kafka, and update downstream systems. The difficulty starts when events...

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habr.com /3 weeks ago

Как тестировать распределенные системы: тайм-ауты, дубликаты, Saga и частичные отказы

Распределенная система может сломаться так, что по отдельности все ее части будут выглядеть исправными.Представим обычную оплату заказа: сервис отправил запрос платежному провайдер...

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habr.com /1 month ago

Архитектура TMS на .NET: кластер, потоки координат и объектное хранилище

Это разбор архитектуры системы управления транспортом — без сроков, без смет и без сравнения технологий по галочкам. Только устройство: из чего система собрана, как разложена по кл...

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javacodegeeks.com /1 month ago

Saga Pattern in Node.js: Managing Distributed Transactions

Modern applications are increasingly built using a microservices architecture rather than a single monolithic application, with business capabilities split across independent servi...

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dev.to /3 weeks ago

Distributed Locking in Practice: Guarantees, Failure Scenarios and Better Alternatives (4/4)

22. The Best Distributed Lock Is Often No Lock at All By now, we've explored distributed locks, leases, fencing tokens, leader election, and consensus. Each of these mechanisms e...

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javacodegeeks.com /1 month ago

Building Idempotent Java Consumers for Replay-Safe Kafka Pipelines

Fast Kafka consumers are not automatically safe Kafka consumers. A Java service can keep up with partitions, restart cleanly, and still leave the business in a state that is hard t...

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Sources covering Cqrs

feeds.dzone.com

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dev.to

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habr.com

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echojs.com

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javacodegeeks.com

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