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Introduction to Redis database As a mature data storage middleware, Redis provides perfect data management functions, such as data expiration mentioned earlier and the data evict strategy we want to talk about today. Data locality principle The principle of locality, which runs through computer science, can clearly tell you that there are ...

Server node: k8s-master01192.168.1.50k8s-node01192.168.1.51k8s-node02192.168.1.52 1, To install docker, all servers need to be installed Install the dependent libraries of Docker. yum install -y yum-utils device-mapper-persistent-data lvm2 Add the software source information of Alibaba cloud Docker CE. yum-config-manager --add-repo http: ...

Quick sort   in other words, it's called fast platoon, but it will become slow platoon under certain circumstances. OK, OK, enter the text Fast platoon also adopts a divide and conquer strategy. The basic idea of this method is: 1. Find a base number first. I usually use the first number2. Then, the left side of the square smaller ...

       👇 👉🚔 Jump straight to the end 🚔 👈 ——> Receive exclusive fan benefits 💖        ☝️   👻 Last two blog posts Nanny tutorial HTML 20000 word note summary [suggestions collection] (Part I) and Nanny tutorial HTML 20000 word note summary [suggestions collection] (Part II) After being read by many friends, man ...

Global filter The gateway provides 31 kinds of filters learned in the previous section, but the function of each filter is fixed. If we want to intercept requests and do our own business logic, we can't do it. 3.5.1. Global filter function The global filter is also used to handle all requests and microservice responses entering the gateway, ...

Level 1: data cleaning Task description This task: clean the data according to certain rules. Programming requirements According to the prompt, add code in the editor on the right to clean the data according to certain rules. Data description is as follows: a.txt; Data segmentation method: one or more spaces; Data location: / user/test/ ...

prefaceWhat is the motion distortion of lidar?One frame of lidar data is all the data formed in the past cycle. The data has only one time stamp, not the data at a certain time. Therefore, the lidar or its carrier will usually move within this frame time. Therefore, the inconsistent origin of this frame will lead to some problems, which is moti ...

Spring/Spring MVC/MyBatis(SSM) integration configuration process Usage of mybatis plus agile development plug-in Main knowledge points SSM consolidation configuration Mybatis plus configuration and Application SSM consolidation configuration Manage the third-party framework objects through the Spring IoC container, so that multiple framew ...

Insert picture description hereCreate typeSingleton modeSingleton object can save system resources, and the cost of creating and dying an object may be very small. But for daily service interfaces, even small companies have more than 100000 QPS. Every time the function runs, new objects are created to respond to requests. The creation and destr ...

Detailed explanation of C++ throw Throw( Throw)--> Detection( Try) --> Capture( Catch) Exceptions must be explicitly thrown before they can be detected and caught; if they are not explicitly thrown, even exceptions cannot be detected. In C + +, we use the throw keyword to explicitly throw an exception. Its usage is: throw exceptionDa ...