FastDFS is an open-source lightweight distributed file system, which manages files. Its functions include file storage, file synchronization, file access (file upload, file download), etc. It solves the problems of mass storage and load balancing. It is especially suitable for online s ...
Origin of tools
Why write such a tool? This is because our company has multiple kubernetes clusters (8 +), and cloud hosting services can't access the apserver configuration, which brings us a pain point. Development and sre need to log in to k8s dashbao and different departments and roles need different authorizations, which used to be throug ...
Posted on Fri, 12 Jun 2020 01:04:46 -0400 by mistjulia
The architecture design of WebMagic refers to scratch, while the implementation uses mature Java tools such as HttpClient and Jsoup.WebMagic consists of four components (Downloader, PageProcessor, Scheduler, Pipeline):
PageProcessor: page parser
Scheduler: task assignment, url de duplication
Pipeline: data storage an ...
Posted on Thu, 11 Jun 2020 23:38:02 -0400 by Drabin
Book to previous:
1-Zero basic programming -- Python basic
2-Zero basic programming: basic theory of cryptography
In the previous part, we shared the basic theory of cryptography. Starting from Morse code, we analyzed Caesar encryption, transposition encryption, digital multiplication en ...
Posted on Thu, 11 Jun 2020 22:57:56 -0400 by Zaxnyd
Alibaba Sentinel is a high-performance and lightweight solution for flow control and fuse degradation. It is a highly available flow control component for distributed service architecture.
Sentinel website: https://sentinelguard.io/zh-cn/
What is Sentinel
With the popularity of microser ...
Posted on Thu, 11 Jun 2020 22:32:15 -0400 by thelinx
This article is mainly for the front-end development engineers to explain how to use Node.js Framework Koa2 and mockjs build a set of data simulation services to provide simulation data for front-end services. Simple operation can greatly improve development efficiency.
Problems encountered in actual combat
Scene 1: schoolmate A is hap ...
Posted on Thu, 11 Jun 2020 04:36:04 -0400 by mesh2005
Mouse events often encountered on web pages include: mouse hover operation, right mouse button, mouse long press, drag and so on
Trigger method is used to trigger events on DOM elements
Examples of grammar usage
.trigger(eventName, x, y)
Posted on Thu, 11 Jun 2020 00:19:39 -0400 by AndrewJ1313
https://github.com/ning1875/falcon-plus This is my change to the open source version of falcon
The most important thing I forgot to write is: why can consistency hash algorithm only migrate a small number of keys when the nodes change? Because the sortkeys list is actually a hash ring. The relative position of the client's hash value and t ...
Posted on Wed, 10 Jun 2020 23:46:24 -0400 by assonitis