jd website development

2022.03.24

foreword:

I believe everyone knows,Talking about the design scheme of the high-quality framework of the billion-dollar traffic website,Two key points come to mind,That is high availability and high concurrency。And talk about how familiar you are with high concurrency and high availability,Jingdong's bosses still have a certain say,And as a senior engineer at JD.com, he is even more powerful。

What I share today is written by an engineer with ten years of development experience in JD.com:“Core technology of 100 million-level traffic website architecture”。

note author:Jingdong senior engineer:Big fly

Notes Features:well organized,with graphic,The content is innovative and esoteric but easy to understand。

The notes are roughly divided into four parts∶Overview、High Availability Principle、High Concurrency Principle、Case combat。load balancer、Limiting、downgrade、isolate、timeout and retries、rollback mechanism、Stress testing and planning、cache、pooling、Asynchronous、Expansion、The core technology of the architecture of the billion-level traffic website is introduced in detail in many aspects such as queues,I believe that after reading it, you can quickly apply it in practice。

Don't talk too much, just take notes:

Special Note:Because the notes are too detailed,Due to limited space,The contents of this document can only be displayed in the form of pictures below.,if you need“Full HDpdfVersion”,You can directly private message me in the background to get keywords「Architecture」Get the free way。

the first1 part Overview:

1. Some principles of transactional system design

2. High Concurrency Principle

jd website development(jd website development)

  • no status
  • split
  • Servicing
  • message queue
jd website development

  • data heterogeneity
  • cache silver bullet
  • concurrency
jd website development

3. High Availability Principle:

  • downgrade
  • Limiting
jd website development

  • cut flow
  • rollback
jd website development

4.business design principles:

  • Heavy-duty design
  • Idempotent Design
  • Process can be defined
  • State and State Machine
  • Back-end system operation feedback
  • Back-end system approval
  • Documentation and Notes
  • backup
jd website development

the first2 part High availability:

1.Load Balancing and Reverse Proxy:

  • upstreamconfigure
  • load balancing algorithm
  • retry on failure
  • health examination
jd website development

  • Other configuration
  • Long connection
  • H T T PReverse proxy example
  • H T T PDynamic Load Balancing
  • NginxLayer 4 load balancing
jd website development

2. isolation:

  • thread isolation
  • process isolation
  • Cluster isolation
  • Computer room isolation
  • Read and write isolation
(jd website development)jd website development(jd website development)

jd website development

jd website development

3.Detailed explanation of current limit:

jd website development

4.downgrade stunt:

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jd website development

5. Timeout and retry mechanism:

jd website development

jd website development

6.rollback mechanism:

jd website development

7. Stress testing and planning:

jd website development(jd website development)

the first3 part High concurrency:

1. application level cache:

jd website development

jd website development

2. H T T PCache:

jd website development

3.Multi-level cache:

jd website development

4.Connection pool thread pool detailed:

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5.Asynchronous concurrent actual combat:

(jd website development)jd website development(jd website development)

6.How to expand:

jd website development

jd website development(jd website development)

7. Queue:

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(jd website development)jd website development(jd website development)

First4 part Case:

(jd website development)1. Build demand response billion-level product details page:

jd website development

jd website development

2.Jingdong Product Details Page Service closed loop practice:

jd website development

3.useOpenRestyDevelopment of high performanceWebapplication:

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4.Application data static architecture high performance single pageWebapplication:

jd website development

5. useOpenRestyDevelopWebServe:

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6.useOpenRestyDevelopment Product Details Page:

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Summarize:“Billion traffic website architecture core technologyImportance,I don't think everyone knows.,Whether it is an interview or advanced architect, this is a plus item,Prove with the chance of successful interviews。

To get this copy【Billion traffic website architecture core technology】Friend of notes,Please support my article more:

——Revolve+Comment,Pay attention to me,Private letter Get password for free「Architecture」I.e.。promise100%free。

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