Learn the distributed architecture notes sorted out by Alibaba in one month

Now many companies' Recruitment Information , There will be such a requirement ： Distributed 、 High concurrency 、 High load 、 High availability system design 、 Experience in development and tuning is preferred .

Write this job description HR, I can't wait to pile up all the words I know that look tall , I can't wait for others to think this is a giant cow X The company .

Actually , High concurrency is not mysterious , To put it bluntly, we need to find a way to solve the two indicators ： promote QPS、 Reduce RT. And at the same time ensure the correctness of the data 、 The availability of the system is OK 了 .

1. Website concurrency has come up ？ Never mind , Expand first , Pile up the machine . With more machines, cluster technology is naturally needed 、 Load balanced .（ promote QPS）

2. There are too many machines to carry ？ Service split , Change centralized deployment to distributed deployment .（ promote QPS）

3. Distributed or unable to bear ？ Downgrade first , Then limit the current .（ Ensure system availability ）

4. The database can't handle it ？ Distributed caching on the Internet .（ Reduce RT）

5. After caching , The data is still unbearable ？ Then consider the separation of reading and writing 、 Sub database and sub table 、 Database disaster recovery .

6. There is a delay in synchronous interaction between systems ？ decoupling , Upper asynchronous scheme , Adopt message oriented middleware .（ Reduce RT）

7. High concurrency leads to dirty data ？ On the distributed lock .（ Make sure the data is correct ）

8. High concurrency leads to data inconsistency ？ On distributed transactions .（ Make sure the data is correct ）

Architecture is never designed , It's evolved . Don't fail to design , And don't over design . The system flow is coming up , First, expand the capacity directly instead of building a very complex architecture .

Even if it's another cow X The architecture of , Using the most advanced technology , Alibaba can't resist the double 11 with dozens of machines ！

Of course , The specific high concurrency operation must be more than that , If you want to learn high concurrency or Java The multithreading 、 Distributed technology

Necessary learning documents for Distributed Technology

This document is divided into 8 Block , Start with the basic distributed theory , Then one by one , Master the core technical fields of distribution . Because of the space , Only the contents of each section are shown below .

First section ： Distributed basics

The main contents are ： Threads 、 signal communication 、 Uniformity 、 Fault tolerance 、CAP theory 、 Security 、 Concurrent .

The second section ： Distributed architecture

The main contents are ： Object based architecture 、 Service Oriented Architecture (SQA)、REST Style architecture 、 Microservice architecture （MSA）、 Container technology 、Serverless framework .

The third section ： Distributed messaging

The main contents are ： ApacheActiveMQ、RabbitMQ、RocketMQ、Apache kafka.

The fourth section ： Distributed computing

The main contents are ： MapReduce、ApacheHadoop、Apache Spark、Apache Mesos.

The fifth section ： Distributed storage

The main contents are ：Bigtable、Apache HBase、Apache Cassandra 、Memcached、Redis、MongoDB.

The sixth section ： Distributed monitoring

The main contents are ：Nagios、Zabbix、Consul、ZooKeeper.

The seventh section ： Distributed version control system

The main contents are ：Bazaar、Mercurial、Git.

The eighth section ：RESTful API、 Microservice and container technology

The main contents are ：Jersey、Spring Boot、Docker.

The Ninth Section ： Distributed transaction solutions

The main contents are ： Basic theory of distributed transaction 、 Distributed transaction solution 2PC( Two-phase commit )、 Distributed transaction solution TCC、 Finally, reliable message consistency of distributed transaction solution 、 Best effort notification for distributed transaction solutions

Knowledge points required for high-frequency interview of distributed architecture

After reading the above , I believe you have a clear goal and direction , The next step is to sort out the required test sites that often appear in the interview , And high-frequency interview analysis , Because of the number of words , It can't be completely displayed

The main contents include ：

Message queue

Redis cache

Sub database and sub table 、 Read / write separation

Distributed transactions

High availability Architecture

SpringCloud Microservice architecture

Last

If you have questions in the reading process , Please leave a message to discuss , Finally, I wish you all success in getting your favorite offer.