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Self-study IT network Linux load balancing video tutorial

Course Intermediate 11304

Course Introduction："Self-study IT Network Linux Load Balancing Video Tutorial" mainly implements Linux load balancing by performing script operations on web, lvs and Linux under nagin.

Shangxuetang MySQL video tutorial

Course Advanced 17616

Course Introduction："Shangxuetang MySQL Video Tutorial" introduces you to the process from installing to using the MySQL database, and introduces the specific operations of each link in detail.

Band of Brothers front-end example display video tutorial

Course Advanced 11321

Course Introduction："Brothers Band Front-end Example Display Video Tutorial" introduces examples of HTML5 and CSS3 technologies to everyone, so that everyone can become more proficient in using HTML5 and CSS3.

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What is the essential difference between hyper-converged servers and cloud servers?

1. There are three main categories of cloud computing: private cloud, public cloud, and hybrid cloud; there are three main levels of cloud computing services: IAAS, PAAS, and SAAS. 2. The IaaS layer is the core and most basic part of the private cloud, and it is also the first part that enterprise IT cloudization should start with. Cloudification not only solves the self-service and automatic delivery of computing, storage and other resources, but also solves the problems of resource pool separation, complex maintenance, and inability to elastically expand caused by traditional architecture. 3. Hyper-convergence and private cloud are not substitutes. On the contrary, hyper-convergence products allow the IaaS layer to truly possess distributed architecture and software.

2021-10-27 09:41:40

Ways to fix issue 2003 (HY000): Unable to connect to MySQL server 'db_mysql:3306' (111)

I recently tried to containerize my FastAPIPython server (also for replication/doubling purposes). Before, I had just a MySQL server in a Docker container and everything was fine, but when I also made my web server a service, it couldn't connect to the MySQL server, so now the application doesn't work. Below is the code snippet of the server database initialization connector in the application fromfastapiimportFastAPIimportmysql.connectorapp

2023-09-05 11:18:47

Experiment with sorting after query limit

So this is my first question here, please forgive me if something is wrong. I'm trying to make a sort query based on constraints. So there is a Customers table with 90 records. I want to first perform a query limited to 3 records, and then sort the results of this query by a column called ContactName. I think this might be a nested query. Nested queries run fine in SQLServer, but don't know how to implement it in MySQL. Limit query: Select*fromcustomerslimit

2023-09-05 14:46:42

CSS Grid: Create new row when child content overflows column width

I have a two column layout based on CSS grid. When the content of the second column exceeds 1fr I want to create a new row. As it currently stands, the content simply overflows the column. One requirement of this layout is that the items in the right menu column are in one row. I achieve this with: .right-menu{...grid-auto-flow:columndense;...} If I remove the grid-auto-flow attribute, the overflow stops. However, the items are now stacked into multiple rows, which is not what I want. I also tried converting .ri

2023-09-05 15:18:28

PHP full text search functionality using AND, OR and NOT operators

Newbie question: I'm trying to implement a full text search on a search string using php and eloquent. $searchstring="+(victimsuspect)+crime-covid";$searchresult=RssItem::whereRaw("MATCH(description)AGAINST('$searchstring'INBOOLEANMODE)")->ge

2023-09-05 15:06:32

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How to develop a global elastic layer component in uni-app (code example)

Course Introduction：How to develop a global elastic layer component in uni-app? The following article will introduce to you through examples how to implement a global elastic layer component in uni-app. I hope it will be helpful to you!

2022-03-07 comment 0 5546

Layui calls the elastic layer method

Course Introduction：How to call the elastic layer in layui: 1. Reference the independent [layer.js] file, the code is like [<script src="layer.js"></script>]; 2. Call the layer module in layui, the code is like [ ayer.msg('hello');].

2020-11-24 comment 0 2614

How does the golang framework architecture cope with high traffic and load balancing?

Course Introduction：In a high-traffic environment, when using Go language to design a high-performance framework architecture, key components include: routing layer (receiving requests), processing layer (business logic) and persistence layer (data interaction). In order to achieve load balancing, a load balancer component can be introduced to distribute requests to multiple servers.

2024-06-01 comment 0 872

golang barrage implementation

Course Introduction：Barrage, with the continuous development of live broadcast, video and other fields, has gradually expanded its application scope and become an indispensable component in live broadcast, video and other fields. Barrage can increase interactivity, improve user experience, and make watching more interesting. Using the Golang language to implement the barrage function can improve the concurrency and performance of the program, and also contribute to the readability and maintainability of the code. This article will introduce how to use Golang to implement the barrage function, and attach corresponding code examples. First, you need to understand the architecture of the barrage platform: the client (sender) sends barrages through the barrage protocol

2023-05-19 comment 0 657

Detailed explanation of layui.layer independent component

Course Introduction：The layer component of the layui framework is still the representative work of layui. Layer has become the most commonly used web elastic layer component in China. Because layer can be used independently, it can also be used modularly through Layui. So please choose according to your actual needs.

2019-11-30 comment 0 3432

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