Tag：The server
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Time：2020-4-2
HTTP protocol is not peer-to-peer. It needs client and server to implement through request and response model. Structure of request message Request method Requested URI Protocol version Optional request header field Content entity Structure of response message Protocol version Status code Explain the reason phrase for the status code Optional response header field subject HTTP […]
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Time：2020-4-2
The 11th double 11 is coming! This time, tmall said that it would save us 50 billion yuan. There are countless students who add shopping carts and build buildings in teams. But in Ali, there is a low-key “Gao Leng man”, who is not moved by the red and fiery double 11. He is still […]
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Time：2020-4-2
Install configuration Git Http://git-scm.com/ download and install, next all the way, this is easy.!! The path environment variable setting after installation is very important!!My computer – > properties – > Advanced – > environment variables – > system variables – > PathSemicolon interval add path.Find the address where Git is installed, such as the author’s […]
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Time：2020-4-2
1、 What is Hadoop? Hadoop is an open source software platform of Apache Functions provided by Hadoop: distributed processing of massive data based on user-defined business logic and server cluster The core components of Hadoop are: HDFS (distributed file system) Yarn (operational resource scheduling system) MapReduce (distributed computing programming framework) Generally speaking, Hadoop refers to […]
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Time：2020-4-2
Application machine Contact OP students to apply for machines, one, three, five Linux servers, (2 * n + 1). Zookeeper cluster work is more than half of them can provide external services, more than two of them are more than half, and one is allowed to hang up. It is not necessary to use even […]
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Time：2020-4-1
What is authentication Generally speaking, it isVerify the identity of the current user, prove that “you are yourself” (for example, you need to punch through your fingerprint when you clock in and out every day. When your fingerprint matches the fingerprint entered in the system, you can punch successfully) Authentication in the Internet: User name […]
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Time：2020-4-1
brief introduction Redis is an open source (BSD licensed), memory stored data structure server, which can be used as database, cache and message queue agent. It supports string, hash table, list, set, ordered set, bitmap, hyperloglogs and other data types. Built in replication, Lua script, LRU retraction, transaction and disk persistence at different levels. At […]
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Time：2020-4-1
Four heads in total General header Request header Response header Entity header Non http / 1.1 header Non http / 1.1 header Set-Cookie name=value Expires = date time. If not specified, the default is until the browser is closed. Once it is sent to the client, it is out of the control of the server. […]
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Time：2020-4-1
From the point of view of programming model, using declarative language to declare style and layout, and using functional programming language to write business logic is the best practice of GUI program. Recently I want to write a personal project, so I naturally want to use the front end to write the interface. With the […]
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Time：2020-3-31
learning resource Python Chinese learning base (highly recommended by explore flask) Flask development starts from Xiaobai Cnblog flask learning materials Recommend some flask resources Flask good essay Summary of the use of flag Flask example Flask development blog Flask common commands Package dependent packages in the flask package pip freeze >requirements.txt Install dependency package pip […]
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Time：2020-3-31
“Not every cloud can support this traffic. There are two clouds in China, one is alicloud and the other is other cloud. ” On the evening of November 11, Zhang Jianfeng, CTO of Alibaba group, said, “Alibaba cloud is not the same. 10 years ago, we started from the first line of code to build […]
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Time：2020-3-31
Preface This article is mainly to write about some pits I encountered when deploying Django project to Alibaba cloud server, share them, and hope that those who encounter the same problems can refer to them for solutions. Need attentionThis is not a deployment tutorial, it will not teach you how to deploy, nor how to […]
