Diễn giả: Nguyễn Minh Quý - DKT Caching là một cơ chế không thể thiếu trong các kiến trúc website hiệu năng cao. Hãy đến tham dự và cùng tìm hiểu cách thức xây dựng kiến trúc cache cho BizWeb - nền tảng bán hàng trực tuyến có số lượng người dùng lớn nhất Việt Nam: 1. Giới thiệu Bizweb Model 2. Mô hình microservices Bizweb sử dụng 3. Frontend caching 4. API caching 5. Assets caching 6. Content delivery network

1. High Performance Websites With Multi-level Caching
Quy Nguyen

2. Overview
• Bizweb Model
• Bizweb Microservices Model
• Frontend Caching
• Assets Caching
• API Caching
• Content delivery network

3. Bizweb Model
One Platform, Every Channel, Any Device.

4. Multi-Channel Commerce Platform
• A single, simple to use back office
• Powering all your sales channels
• Everything integrated

8. Bizweb Microservices Model

9. Looking back, old stack
• First line of code written in 2007
• Bizweb released Mar, 2010
• 8 Versions upgraded
• Microsoft full stack
• Stop upgraded Dec, 2014

10. Monolithic architecture
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11. System problems
• Outdated technology
• Un-stable system, un-flexible
• Difficult to scale
• Web Forms View Engine:
• Stateful: 60K template folders
• IIS precompile is too slow

12. Requirements
• Minimum core functions
• Open API for third-party integration
• Only one business service for Web/API/Mobile
• New template engine
• Easy to scale (system scale, team scale)
• Only 6 month for development
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13. Microservices Model
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14. Advantages of microservices architecture
• Each microservice is relatively small
• The IDE is faster making developers more productive
• The web container starts faster, which makes developers more productive, and speeds
up deployments
• Each service can be developed and deployed independently
• Improves fault isolation
• Makes it easier for a new developer to understand the functionality of a
service
• Easy to throw away
• Eliminates any long-term commitment to a technology stack
• Easy to scale
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15. Microservices drawbacks
• Deploying microservices can be complex
• Multiple databases and transaction management can be painful
• Testing a microservices-based application can be cumbersome
• Developing distributed systems can be complex

16. Scale
Functional Scaling
(Microservices)
Team Scaling
(Microservices)
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17. Current stack
• ASP.NET MVC
• C# / Java / Ruby / NodeJS
• Spring Boot, Spring Cloud, Spring
Security, Spring Security OAuth
• Netflix OSS: Zuul, Hystrix, Turbine,
Eureka, Ribbon, Feign
• IIS / Jetty
• Windows Server / Ubuntu
• dotLiquid
• Resque
• RabbitMQ, Kafka
• Redis, MongoDB
• Nginx
• ElasticSearch
• Cloud Service: Amazon EC2, S3,
Route53, DigitalOcean, VCCloud
• Apache Traffic Server
• Thumbor
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18. 18
Bizweb Microservices Architecture

19. Caching

20. 4 levels of caches
• 1st: Network level cache: caching in the browser, CDN, and proxies
• 2nd: Application caching: An in-memory, per server cache
• 3rd: Distributed in-memory key-value store. Share cache elements across different
servers that serve the same site
• 4th: Database Caching. The entire database is cached in-memory. The entire thing

21. Frontend Caching

22. Frontend Caching
• Serve gzip content
• ETag and 304 Not Modified for dynamic content
• Generational caching
• No explicit expiry

23. Browser caching

24. HTTP ETag

25. HTTP Caching - ETag

26. Frontend Distributed Caching
Page output caching.

27. Frontend Distributed Caching
• Full page caching
• No explicit expiry (use LRU)
• Redis
• ETag cache key

28. Generational caching

29. Frontend caching

30. Assets Caching

31. Amazon S3
Theme assets, images, files.

32. Amazon S3
• Easy to use
• Flexible
• Reliable
• Scalable and high-performance
• Secure
• Low cost

33. Theme assets caching
• Application in-memory caching
• Redis
• Explicit expiry

34. Theme assets caching

35. Theme assets caching

36. API Caching

37. API Caching
• Cache full model objects in Redis
• Cache invalidation messages
• No explicit expiry

38. API Caching

39. Content Delivery Network

40. Bizweb CDN
• Apache Traffic Server
• Thumbor
• NodeJS sass compiler
• Route53
• Amazon EC2, VCCloud, DigitalOcean

41. Bizweb CDN

42. Bizweb Caching

43. Bizweb Caching

44. Q&A