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Когда говорят о Neo4j, чаще всего вспоминают social networks, fraud detection, recommendation systems или knowledge graphs. Но графовая база может б…
Introduction & Industry Context In the landscape of modern software architecture, event-driven microservices have transitioned from an advanced…
In distributed microservice architectures, synchronizing database updates with downstream event streams is a notorious source of silent data drift.…
Apache Kafka is celebrated for its incredible horizontal throughput, capable of streaming millions of messages per second. Yet, many engineering tea…
Articles 🔍 API Features as a First-Class Artifact with OpenAPI Overlays OpenAPI Overlay 1.1 documents model API features as separate, reviewable art…
Working with Kafka data on your own terms, using a local index. A search stack usually follows Kafka into a service. But the message you are looking…
2,404,811 answers on port 2181 and 1,381,208 on port 9092: the difference between a coordinator and a broker The counts Two ports associated with di…
TL;DR: If you've spent years with Sidekiq, Kafka can look like "Sidekiq with extra steps". It isn't. Sidekiq moves jobs (commands to do something).…
At twelve minutes past four on a Saturday morning, one partition of our shipments topic stopped moving. We found out at nine, when a depot rang to a…
Привет, я Салават Динмухаметов, senior ML-engineer в команде рекомендаций Авито . В статье расскажу, как мы изменили систему рекомендаций на главной…
Ни для кого не секрет, что проверки качества — фундамент доверия к данным. Пока вы не знаете, насколько полны и корректны ваши данные, любые основан…
"At-least-once delivery" is four words that hide a dozen production incidents. So are "consumer lag", "dead letter queue", and "exponential backoff"…
Every few months a team I talk to decides they need exactly-once delivery in Kafka. They read the docs, discover processing.guarantee=exactly_once_v…
1. Scenario When using an Apache SeaTunnel streaming job to consume data from a Kafka topic, what happens if the topic is expanded from 2 partitions…
The Inbox Transaction Boundary: Getting Event Processing Right in Spring Boot One of the hardest parts of building an event-driven system isn't gett…
Most people assume that a high-performance messaging system like Kafka must be keeping everything in memory to stay fast. But here's the truth — eve…
Every test passed. The tests had the same blind spots as the code. A developer saw Ossian's MCP server in a community showcase and asked two questio…
In the fintech sector, data integrity and system reliability are paramount. When managing sensitive operations such as credit products, loan disburs…
Most guides for connecting Spark to Amazon MSK assume the two live in the same cloud and authenticate with IAM. That covers a lot of cases. It does…
Перевод по СБП — это не одна стрелка между двумя сервисами, а лимиты, антифрод, идемпотентность, НСПК, Kafka и уведомления. Я попробовал собрать это…
You have an orders topic on a Kafka cluster, its values encoded with Avro against a schema in the Schema Registry . You want the orders worth more t…
The bug that doesn't show up in tests — and what to do about it There is a class of bug in event-driven systems that is almost invisible in developm…
Event-driven architecture looks simple at first. Your application performs a business operation, publishes an event to Kafka or SQS, and another ser…
A few weeks ago I published a write-up on inverting the control flow of a settlement API: instead of the endpoint owning window semantics (batching,…
Modern systems run on data in the form of fast, real-time, continuous streams. But what happens when your system grows faster than your architecture…
A practical guide to building reliable event-driven systems in Go using Apache Kafka. Learn how to implement tiered retry strategies with delayed re…
The textbook version of the transactional outbox is tight. You save the domain entity and an outbox row in one local transaction. A background sched…
Привет! Меня зовут Кристина, я MLOps-инженер в Туту. Занимаюсь тем, что помогаю рекомендательным системам добраться до прода со всеми компромиссами,…
Думаю, многие сталкивались с ситуацией, когда облачный провайдер честно обещает 99.95% или даже 99.99% SLA, но в реальности бизнес-система пада…
What was broken In Apache Stateful Functions, the routable Kafka ingress had no policy for malformed records. A record with a null key (there's no f…