Software System
Software System
Kubernetes deploys MySQL cluster (rook as back-end storage)
Software System
The basic concepts of Flink window and window API
Software System
Tencent C++ background development internship experience (have got an offer)
Software System
A blockchain architecture that can be developed at a high speed for another ten years-the Wormhole Protocol deploys an infinitely scalable smart contract layer on the Bitcoin Cash network
Software Testing
Software Testing

Server-side performance toolbox (2)-DNS

... Lucas
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Software Testing

Java High Concurrency Series: Some useful concurrency tools provided by Google

... Noah
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Software Testing

Distributed code management tool Git

... Andrea
favorite1817
Software Testing

Explained: How to publish your first scaffolding tool on NPM

... Brandon
favorite295
Software Testing

PyQt developer welfare, hundreds of test and case components are in this project

... Thomas
favorite902
Software Testing

The first JDBC [Introduction to JDBC, using JDBC to connect to the database, simple tools]

... Angel
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Software tools
Software Tools

github show operation

Restrict search in keyword to limit the search scope command Description xxx in:name The project name contains xxx xxx in:description Project description contains xxx xxx in:readme The project s readme file contains xxx xxx in:name,desciption The project name contains xxx and the project description contains xxx Range search Keyword search by number of stars or fork command Description springboot stars:>=666 To find a springboot project with stars not less than 666 springboot forks:>500 f

... Jackson
schedule 2 min read
Software Tools

Use of Redis pipeline technology

table of Contents Redis pipeline technology SpringDataRedis uses pipeline Redis pipeline performance test Precautions for using pipeline technology Code example Redis pipeline technology Redis is a TCP service based on - (C/S )and / . This means that under normal circumstances a request will follow the following steps: The client sends a query request to the server and listens to the Socket to return, usually in blocking mode, waiting for the server to respond. The server processes the commands

... Eric
schedule 4 min read
Software Tools

Swift. Types, function calls

Delayed storage properties uselazy decorated storage attributes Delayed storage attributes must have a default initial value Will be assigned at the first visit Does not guarantee thread safety Impact on the size of instance objects Must have an initial value and cannot be marked as an optional value, otherwise an error will be reported It can be seen from the figure above that there is no value in the memory when the first breakpoint is reached. The first two are metadatasumsrefCounts when the

... Eric
schedule 7 min read
Software Tools

Ren Xiaofeng, Chief Scientist of AutoNavi Maps QA QA Summary What are the new ways to play visual + map technology?

Last week, Ren Xiaofeng, chief scientist of Alibaba Gaode Maps, had a technical exchange with everyone on the development of computer vision-related technologies and the application in the field of map travel at the online live event of # #. The interaction in the live broadcast room was very hot, especially in During the QA session, the students asked questions about the visual applications, AR navigation, positioning technology, 5G, career development and other topics that they were interested

... Richard
schedule 12 min read
Software Tools

The difference between find() function and children() function based on jquery

element.find(selector) returns the descendants of each element in the matching element set. The parameter selector is required. The element can be filtered through the selector to filter out the elements that meet the conditions. If you want to select all descendant elements, pass the parameter wildcard selector "*" element.children(selector) returns the children of each element in the matching element set. The parameter selector is not required. If the parameter is omitted, all the children ele

... Hailey
schedule 2 min read
Software Tools

Into the world of JavaWeb technology 12: From manual compilation and packaging to project build tool Maven

This series of articles will be organized into my "Java Interview Guide" repository on GitHub. For more exciting content, please check in my repository https://github.com/h2pl/Java-Tutorial If you like it, please click on Star The article was first published on my personal blog: www.how2playlife.com This article is one of the "Into the World of JavaWeb Technology" published by the WeChat public account [Java Technology Jianghu]. Part of the content of this article comes from the Internet. In ord

... Makayla
schedule 20 min read
Database Technologies
Database Technologies

The nodejs project is deployed to the docker container to run

1. Create Dockerfilefiles in the root directory of the program FROM node:11.2.0 # node WORKDIR /apis/nodeAppServer # docker COPY . /apis/nodeAppServer # docker RUN npm install # linux CMD [ "node","server" ] # linux node Directory Structure: 2. Put it onlinux Build mirror docker build -t nodeAppServer . Check the image after the build is successfuldocker images [root@localhost nodeAppServer]# docker images REPOSITORY TAG IMAGE ID CREATED SIZE nodeAppServer latest 6c5d3ccf3af0 12 seconds ago 900

Database Technologies

[] The time is advanced, the national service unlimited firepower, chaos 2019 experience service

2019 unlimited firepower, chaos ahead of schedule In the previous article, Dolphin told everyone that the League of Legends LOL national server unlimited firepower and infinite fighting time is October 29, but it is worth noting that the national server also has an experience test server, and the opening time of the new mode will be one earlier than the official server. week. So the final opening time of the national server unlimited firepower is: Official national service: October 29, 2019 Nat

Database Technologies

In-depth explanation of iOS +load and +initialize

Before this, I never thought that +load and +initialize can pull so many things, but today it does pull so many things. If there are any mistakes, please correct me~~~ The +load method is automatically called by the system, and there is no need to manually call it. The system automatically calls the +load method (if any) for each class, so there is no need to manually call the [super load] method. The +load method is loaded in the order of [SuperClass load]->[Class load]->[ChildClass load

Database Technologies

The first JDBC [Introduction to JDBC, using JDBC to connect to the database, simple tools]

tags: JDBC 1. What is JDBC The full name of JDBC: Java Data Base Connectivity, it is a Java API that can execute SQL statements 2. Why do we use JDBC There are many databases on the market. Originally, we needed to learn different APIs according to different databases. In order to simplify this operation, Sun company defined the JDBC API [interface] Sun only provides the JDBC API [interface], and the database manufacturer is responsible for the implementation. For us, operating databases are al

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