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- How Java architecture is applied to different products
- When we set up a system, we usually need to consider how to interact with other systems, so we first need to know how various systems interact with each other and what technology is used to implement it. 1. Interaction between different systems and different languages. Nowadays, our common interactions between different systems and different languages use WebService and Http requests. WebService, that is, "Web service", abbreviated as WS. Literally understood, it is actually a "Web-based service". But services are for both parties. If there is a service demander, there will be a service provider. The service provider publishes services to the outside world, and the service demander calls the services published by the service provider. To put it more professionally, WS is actually built on the HTTP protocol to achieve heterogeneity.
- javaTutorial . nosql 1020 2023-05-04 23:01:13
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- How to delete an array using PHP and MongoDB
- PHP with MongoDB is a very popular combination and they are often used together to build web applications with high performance and scalability. Among them, MongoDB is a high-performance NoSQL database, while PHP is a powerful language for developing web applications. In MongoDB, sometimes you need to delete an array, but this is not an easy task. This article will introduce how to delete an array using PHP and MongoDB. First, we need to understand the data structure in MongoDB.
- PHP Problem . nosql 488 2023-04-26 11:24:21
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- How to implement golang redis
- In today's big data era, the amount of data is growing exponentially. In order to process these massive data quickly and better, traditional databases can no longer meet the needs. NoSQL databases came into being, among which Redis is widely used. Redis is a memory-based database that can provide high-performance and low-latency data reading and writing, and supports multiple data structures, clusters, transactions and many other features. Using Redis in Go language can give full play to the advantages of Redis and make it smooth and natural to use. Next, let’s explore how to use Go language
- Golang . nosql 565 2023-04-23 13:59:56
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- How PHP handles errors obtained in Redis
- PHP Redis is a very popular PHP extension that allows PHP programmers to use the Redis NoSQL database. In the process of using Redis in PHP Redis, we may encounter various errors, among which retrieval errors are one of the very common errors. This article will introduce how to deal with retrieval errors in PHP Redis. Retrieval errors refer to situations where when using Redis, an attempt is made to obtain certain values, but the retrieval fails. There are many ways to get errors
- PHP Problem . nosql 1221 2023-04-21 09:22:29
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- How to design a docker management system
- Docker has become an essential tool for modern enterprises, simplifying the packaging, shipping and deployment of applications. However, Docker requires a large number of commands to manage applications, images, and containers. For enterprises managing large-scale Dockerized applications, this can become very tedious and complex. Therefore, designing a powerful Docker management system is crucial. The following aspects need to be considered when designing a Docker management system. 1. Architecture design Docker management system can be divided into multiple modules, usually including We
- Docker . nosql 678 2023-04-18 10:35:51
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- Let's talk about how to install phpredis extension under Linux system
- In PHP development, Redis is a commonly used NoSQL database. It can efficiently process large amounts of data and is widely used in various scenarios, such as caches, counters, queues, etc. Phpredis is a high-performance PHP extension for the Redis database, which provides PHP developers with a simple, efficient, and stable access method. However, before using phpredis, we need to install the phpredis extension into our PHP environment. This article will introduce in detail how to install
- PHP Problem . nosql 1093 2023-04-12 14:48:28
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- Let's talk about how to implement the backend management system in PHP
- With the development of Internet technology, more and more websites, apps, systems, etc. need to use backend management systems. How to build a stable and efficient backend system is a question that every developer needs to think about. As a popular programming language, PHP is widely used in web development. So, how do we use PHP to implement the backend management system? Below, this question will be answered. 1. The use of frameworks is a very effective way to build a backend management system. It can help developers improve work efficiency and make programs more stable. Currently, the more popular background
- PHP Problem . nosql 1803 2023-04-12 11:14:12
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- We have compiled 100 selected Python libraries. It is recommended to collect them!
- Text Hello everyone, I am Python Artificial Intelligence Technology. Why is Python so popular and so many people learn it? It is because it is easy to learn and powerful. The entire community is very active and there is a lot of information. And this language involves all aspects, such as automated testing, operation and maintenance, crawlers, data analysis, machine learning, financial fields, back-end development, cloud computing, and game development. Thousands of tall buildings have risen from the ground. The reason why the Python building is so powerful is that it has the support of thousands of powerful libraries and countless awesome wheels to support this building. Today we will sort it out together and overlook the entire Python treasure house. I roughly listed the application methods of the entire Python library, and roughly calculated there are more than 20 directions. left and right
- Python Tutorial . nosql 1618 2023-04-11 19:27:30
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- How does golang store data? A brief analysis of two data storage methods
- Golang is a very popular backend language in today’s software development world. For those who are new to Golang, the way data is stored may be a tricky issue. This article will introduce the data storage method in Golang. ## Introduction Golang uses two main methods for data storage: database and file system. In this article, we will discuss two storage methods used in Golang mainly for database and file system. ### database
- Golang . nosql 1394 2023-04-11 14:14:12
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- How does YouTube save huge video files?
- Hello everyone, I am Bucai Chen~ YouTube is the second most popular website after Google. In May 2019, more than 500 hours of video content were uploaded to the platform every minute. The video-sharing platform has more than 2 billion users, with more than 1 billion hours of video played every day, generating billions of views. These are incredible numbers. This article will provide an in-depth explanation of the database and back-end data infrastructure used by YouTube, which allows the video platform to store such huge amounts of data and scale to billions of users. So let's get started. 1. Introduction YouTube’s journey began in 2005. As this venture capital-funded technology startup
- Python Tutorial . nosql 1026 2023-04-10 11:21:06
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- Time series prediction based on TensorFlow and QuestDB
- Translator | Reviewed by Zhu Xianzhong | Overview of Machine Learning for Time Series Forecasting by Sun Shujuan Currently, machine learning is sweeping the world, and robots can complete tasks in many fields with human-like accuracy. For example, in the medical field, smart assistants can check people's health status at any time; in the financial field, there are also tools that can predict investment returns with reasonable accuracy; and in online marketing, some product recommendation tools have been developed that can be based on people's purchases. History recommends specific products and brands to it. In these application areas, one can use different types of data to train machine learning models. Among them, time series data is used to train machine learning algorithms. In this case, time is the key component. Time series data is complex and involves
- AI . nosql 1714 2023-04-08 14:21:06
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- A consensus algorithm that distributed systems must know: Raft
- 1. Overview of Raft The Raft algorithm is the preferred consensus algorithm for distributed system development. For example, Etcd and Consul are popular now. If you master this algorithm, you can easily handle the fault tolerance and consistency requirements of most scenarios. For example, distributed configuration systems, distributed NoSQL storage, etc. can easily break through the single-machine limitations of the system. The Raft algorithm achieves consensus on a series of values and consistency in the logs of each node through all leader-based methods. 2. Raft Role 2.1 Role Follower (Follower): Ordinary people, silently receiving messages from the leader, when the leader’s heartbeat information times out
- AI . nosql 1063 2023-04-07 17:54:52
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- How to use nodejs to build an online job search platform
- With the popularity of the Internet, online recruitment has become one of the main channels for job seekers and recruiting companies. With the development of technology, more and more job search platforms have appeared on the market. In the process, Node.js has become a very popular open source platform that is fast, cross-platform, and easy to write and modify. In this article, we will create an online job search platform using Node.js. First, we need a database to store job seeker and company information. In this regard, we can use MongoDB, which
- Front-end Q&A . nosql 476 2023-04-07 10:19:32
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- How to perform database query in nodejs
- Node.js is a JavaScript running environment based on the Chrome V8 engine that can be used to develop web applications. One of the main advantages of Node.js is its non-blocking I/O mode, which makes it ideal for request-responsive applications. Of course, another important advantage of Node.js is that it supports database query operations. In Node.js, several different databases can be used to store data. Common databases include: MySQL, MongoDB, PostgreSQ
- Front-end Q&A . nosql 911 2023-04-05 10:26:48
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- An in-depth analysis of how to use Node.js to simulate requests to a local database
- Node.js is an open source, cross-platform Javascript running environment built on the Chrome V8 JavaScript engine. It can run on Windows, Linux, macOS and other operating systems. It is a very popular back-end development tool. Node.js provides many modules and APIs that can be used to create server applications and perform file system operations. In this article, we will discuss how to simulate requests to a local database using Node.js. In Node.js, we can
- JS Tutorial . nosql 960 2023-04-05 09:24:23
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