Средний Квартал кода

Проектирование систем

Проектируйте масштабируемые сервисы: кеши, очереди и базы данных.

System design is choosing the boxes and arrows behind an app, and knowing how they behave when millions of people show up. This track starts with requirements and honest back-of-the-envelope numbers, grows one server into many behind a load balancer, and adds caches and CDNs. Then it tackles the hard parts: scaling the database, queues and duplicate messages, rate limits, consistency, and seeing inside a running system.

Most lessons are concepts, small numbers and diagrams, with code only where it makes an idea concrete. The track ends with you designing a home feed and a live leaderboard, step by step.

Уроки: 14
Время: 2 ч
Уровень: Средний

Начать курс · Requirements and estimates

Уроки этого курса пока на английском.

Бронза доступна
Серебро доступна
Золото закрыта

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Вас ждут три экзамена: бронза, серебро и золото.

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Чему вы научитесь

Turn requirements into load estimates with back-of-the-envelope math
Scale stateless servers behind a load balancer with health checks
Use caches, TTLs and CDNs without serving stale or unreachable content
Scale a database with pooling, replicas and, as a last resort, sharding
Move slow work to queues and make consumers safe against duplicates
Choose consistency per feature and alert only on what users feel

Маршрут

1
Модуль 1
From one server to many

Requirements and estimates, stateless servers behind a load balancer, caches and CDNs.

0 / 4
2
Модуль 2
Data and events at scale

Scale the database, use queues safely, limit traffic, choose consistency and watch it all run.

0 / 6
3
Модуль 3
Next steps

Real-time features, search, multiple regions and cost.

0 / 4