9,045 internet-reachable Couchbase instances: measuring the document database layer
9,045 internet-reachable Couchbase instances: measuring the document database layer Opening Couchbase is a distributed document database. It has a q…
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Why LioranDB Uses LSM-Based Secondary Indexes
A document database usually stores a primary record by document ID. But applications also ask questions such as: Find users where status = "active"…
Need a different partition key in Azure Cosmos DB? Pick the right approach
Once you create a container, its partition key is fixed at creation, and you can't change it in place. However, if your original key starts causing…
RocheDB v0.6 Planning: Safer Queries and Deeper Data Locality
This is not a release announcement. It is a development note about the next areas I want to harden for RocheDB v0.6. RocheDB v0.5.x made the core da…
The Architecture of Everything: Database Needs for the Internet of Things (IoT)
A single smart factory floor can generate more sensor readings in an hour than a mid-sized e-commerce site logs in a month. That's the reality behin…
DynamoDB adaptive capacity
DynamoDB spreads your table across partitions, but your traffic rarely spreads evenly. Burst capacity and adaptive capacity are the two automatic me…
The Database Architect Teaches His Nephew: Where the Real Interview Happens
Same uncle, this time in "Database Architect" mode. Same nephew, this time asking the question every backend developer eventually asks out loud. Par…
MongoDB `$facet` Explained: One Query, Multiple Results
Sometimes one MongoDB aggregation needs to return more than one result. For example, from the same payments collection, you may want revenue by paym…
Велосипед для жрицы Трои, или как мы переизобретали Outbox для нетранзакционной базы данных
Привет, Хабр! На связи системный аналитик Илья Глазунов и разработчик Захар Корсаков. Мы работаем с платформой карточного хранилища Т-Банка. Когда д…
Free MongoDB GUI Tool for Developers, Students, and Teams
MongoDB is much easier to understand when you can actually see your data, not just read it on a screen. The whole point of VisuaLeaf is to make this…
ClickHouse для больших данных: полный гайд по интеграции с NoSQL‑экосистемой
Когда классические SQL‑базы падают под аналитической нагрузкой, а Hadoop‑кластер напоминает чемодан без ручки — пора искать ново…