Category: The back-end

The back-end

Zookeeper Learning series 【 2 】 Cluster Building in Zookeeper Cluster chapter

February 1, 2024

by Eric Miller

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Fellow fellow, long time no see. In the last chapter, I mainly talked about some basic knowledge points of Zookeeper. Data model + primitive set...

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The back-end

Roaming the world of data structures

February 1, 2024

by Mamooty Din

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What is the data structure? A program is composed of data structures and algorithms. Of course, data structures and algorithms are complementary and cannot be...

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The back-end

An introduction to important classes of Sentinel

February 1, 2024

by Abram Chad

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This paper is the first analysis of the Sentinel principle. Due to the short time exposure to this middleware, there may be some understanding bias....

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The back-end

8 servers for nothing because of BitMap…

February 1, 2024

by Robert Morris-Ali

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Recently, due to the addition of some risk control measures, resulting in new group order interface QPS, TPS decreased about 5%~10%, this is not bad!...

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The back-end

This article will give you a thorough understanding of Bean post-handlers and execution timing

February 1, 2024

by Martin Lane

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If that's too much trouble, I can upload my project to Gitee or Github, and everyone can pull it down and use it. Spring by...

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The back-end

Raft consensus algorithm

February 1, 2024

by Jeffery Pineda

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Raft Consensus Algorithm is one of the common Consensus algorithms In distributed systems. In Search of an Understandable Consensus Algorithm, the author points out that...

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The back-end

Comparison of 8 common machine learning algorithms

February 1, 2024

by Dishani Gandhi

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It is very important to choose an appropriate algorithm in machine learning. This paper mainly introduces 8 kinds of computer algorithms and their advantages and...

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The back-end

Exciting new features from Java 12 to Java 17

February 1, 2024

by Patricia Jones

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In September 2021, Oracle released Java 17, the next long-term support release of Java. If you're using Java 8 or Java 11, you probably haven't...

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The back-end

Python3 Global vs. Nonlocal

February 1, 2024

by Stephanie Hansen

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Global is the key that gives local scopes access to global variables; Nonlocal allows the underlying local scope to access local variables in the parent...

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The back-end

Visual Leak Detector uses summary in VS VS VC6.0

February 1, 2024

by 周琬婷

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CodeProject Visual Leak Detector - Enhanced Memory Leak Detection for Visual C++ CodeProject

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The back-end

You should use these new features in Python3

February 1, 2024

by 康中山

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As Python2's official maintenance period comes to an end, more Python projects are switching from Python2 to Python3. However, in the actual work, I found...

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The back-end

Linux Multi-version Python switch and Multi-version PIP mapping (Cloud Studio && Ubuntu16.04)

February 1, 2024

by Tom Hooper

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PIP is python3.5 by default, pip3 is python3 by default, piP2 configuration file is changed, otherwise piP2 cannot be used.

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The back-end

Crawlab V0.4.6 is released

February 1, 2024

by Colin Akhtar

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This update focuses on the optimization of log management, task triggering, crawler display, and the addition of node.js SDK. Node.js SDK. Users can apply the...

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The back-end

Write crawlers in Golang (5) – use XPath

February 1, 2024

by Navya Sastry

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BeautifulSoup's replacement library, Soup, and Pyquery's replacement library, GoQuery, have been introduced in this series, but my favorite page parsing combination for writing Python crawlers...

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The back-end

Manage and mount hard disks in Linux

February 1, 2024

by Justine Twidle

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In this article, you will learn about disk mounting in Disk management in Linux. This is probably the most practical Linux hard disk mount article...

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The back-end

Goodbye VMware, a more lightweight virtual machine

February 1, 2024

by Mr. Matthew Evans

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Multipass, a lightweight virtual machine manager, is an open source project from Canonical, the Ubuntu operating company. The operating environment supports Linux, Windows, and macOS....

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The back-end

MySQL index optimization practice (2)

February 1, 2024

by Natalie Hale

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Delete the first 10 rows of row 50001 from table employees. It looks like only 10 records are being queried

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The back-end

Go language Quick start guide: Go to JSON

January 31, 2024

by Kahurangi Gee

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Go to JSON in your daily work, except for the data structure that needs to be converted from JSON to Go. The opposite is often...

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The back-end

Finally “build” a tool that can be programmed anytime, anywhere

January 31, 2024

by Rachel Simpson

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In the first episode, there are 6 parts, from getting started with Python to environment and tool installation. In the last part, there is a...

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The back-end

Telecommunication of microservice family

January 31, 2024

by Mr. John Morton

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Background For more than three years of back-end development, I have contacted and used three RPC frameworks including SpringCloud, Dubbo and Thrift. In daily work,...

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The back-end

[url = “long”] [url = “keyword”

January 31, 2024

by Claudia Vasquez

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Spring - data - elasticsearch: 3.2.10. I clearly specified in the RELEASE version of the elasticsearch long, why it became a keyword

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The back-end

373. Finding and smallest k-pair numbers: “Multiple Merge” & “dichotomy”

January 31, 2024

by Christopher Marsh

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This is 373 on LeetCode. Find the sum of the smallest pair of k-numbers with medium difficulty. Given two ascending integer arrays nums1 and nums2,

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The back-end

Common implementation scheme of delayed message

January 31, 2024

by 丁宗翰

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Delayed messaging applies to a wide range of business scenarios. In distributed systems, the functionality of delayed messaging typically sinks into the middleware layer, usually...

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The back-end

JMeter distributed deployment

January 31, 2024

by 刁冠宇

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JMeter distributed deployment, with 1 master and multiple slave mode, makes full use of the performance of multiple servers and provides enough concurrent pressure to...

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The back-end

Talk about MessageSender at Cheddar

January 31, 2024

by Devin Padilla

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The MessageSender interface of Cheddar defines send and sendDelayedMessage methods. MessageSenderImpl implements MessageSender interface, and its send method is delegated to messageQueue. Send. Its sendDelayedMessage...

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The back-end

Talk about the use of Nacos configuration isolation and classification

January 31, 2024

by Devansh Subramaniam

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Recently Nacos has been used as the configuration center and registry, and there have been some problems in the process of using it. Some are...

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The back-end

How to help financial customers “use the cloud well”?

January 31, 2024

by Timothy Roberts-Hayes

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Introduce: in securities trading, every second trading volume is counted by hundreds of millions of yuan, if because system failure brings about break down, the...

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The back-end

Python 2.x some handy tips for upgrading to Python 3

January 31, 2024

by Susan Baxter

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Migrating to Python 3 with pleasure

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The back-end

Note the tX-LCN distributed transaction line problem

January 31, 2024

by 李淑娟

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Conn ==null throws an exception. Could conn be concurrent and its state be changed by another thread? By comparing the time, it can be found...

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The back-end

2020 has arrived, Python2 life has expired, please migrate

January 31, 2024

by Aarav Rana

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As 2020 approaches, Python 2 is coming to an end. As of January 1, 2020, the Python core team will no longer provide any support...

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