1. Time series data and its characteristics Time Series Data is a series of indicator monitoring data that is continuously generated based on a relatively stable frequency, such as the Dow Jones Index within a year, the measured temperature at different time points in a day, and so on. Time series data has the following […]
Author: JD Logistics Zhao Shuai Yao Zaiyi Wang Xudong Meng Weijie Kong Xiangdong 1 Introduction The logistics contract center is the only entrance for JD logistics contract management. Provide merchants with the ability to create and seal contracts, and provide contract customization, filing, and query functions for different business lines. Due to the large number
In the era of cloud computing, cloud vendors help us solve the maintenance and expansion of computing and storage resources, but users also face the problem of being bound by vendors. In 2021, UC Berkeley proposed the concept of Sky Computing (“Sky Computing”), whose goal is to allow applications to run across multiple cloud vendors
author｜Jay Alammar Translation｜Yang Ting, Xu Jiayu Recently, AI image generation has attracted attention. It can generate beautiful images based on text descriptions, which has greatly changed the way people create images. Stable Diffusion As a high-performance model, it generates higher image quality, runs faster, consumes less resources and occupies less memory, and is a milestone
Due to the particularity of the automobile business, Tmall Auto built its own H5 page for product details based on the Rax multi-page application.Custom business details carry many business capabilities and delivery scenarios.With the development of business and the increase of content on the page, experience problems such as too long blank screen time began
Two-stage sorting (rough sorting-fine sorting) was originally a sorting framework proposed due to system performance problems. For a long time, the positioning of rough sorting has been a degraded version of fine sorting. However, we found that through some technical means, rough sorting can The collection goes beyond fine row.By re-examining the relationship between rough
Summary:Cookie, Session, and Token are products of different development stages This article is shared from the HUAWEI CLOUD community “The Story Behind Cookies, Sessions, and Tokens” by Long Ge Notes. 1. Upgrade the interactive experience of the website As netizens, we use browsers to browse various websites every day to meet our daily work and
background With the release of Dubbo 3.1, Dubbo has taken another important step on the road to cloud native. In this version, the new feature of Proxyless Mesh is added. Dubbo Proxyless Mesh directly implements xDS protocol analysis, realizes direct communication between Dubbo and Control Plane, and then realizes unified control of traffic control, service
Practice of Proxyless Mesh in Dubbo-ApacheDubbo’s personal space- News Fast Delivery Read More »
Author: JD Health Meng Fei 1. The significance of database performance optimization In the early stage of business development, the amount of database is generally not high, and some performance problems are not easy to occur or the problems are not large. However, when the magnitude of the database reaches a certain scale, if there
Author: Floyd Smith of F5 Original link: 10 tips to achieve 10 times application performance improvement Reproduced source: NGINX official website Web application performance optimization is imminent. The share of economic activity online continues to grow, with the developed world’s Internet economy already accounting for more than 5% of the economy (see below for sources
Author: JD Logistics Ji Zhuozhi At present, there are a lot of source code analysis about the jump table structure and Redis on the market, but after long-term observation, it is found that most of them just stay on the surface of the code, without systematically introducing the origin of the jump table and the
Everyone has their own special reasons for falling in love with the open source community. For Liu QiTo me, this is a techno-crazy paradise. Students who have played with audio and video technology must be familiar with the name Wukong.Goku LiuDisagreementFFmpeg official consultant, Maintainer, one of the most active contributors in the FFmpeg community, and
Summary:Thread Dump is a very useful tool for diagnosing Java application problems. This article is shared from Huawei Cloud Community “Debugging and Troubleshooting – Thread Dump Analysis of Java Thread Analysis”, author: Long Ge Notes. Thread Dump is a very useful tool for diagnosing Java application problems. Each Java virtual machine has the ability to
Author: Xu Chuanle, Jingdong Technology background Under high concurrency, the GC problem of Java programs is a very typical type of problem, and the impact will often be further amplified. Whether it is “GC frequency is too fast” or “GC time is too long”, due to the Stop The World problem during GC, it is
