Programmer Group

I run the tool Xshell 1, Install pagoda panel Skip directly installed yum install -y wget && wget -O install.sh http://download.bt.cn/install/install_6.0.sh && sh install.sh 6dca892c Enter the command in the Xshell 6 command window and press enter. The installation will be successful in 10 minutes     Note ...

Linux interrupt Using interrupts in IM6ULL bare metal requires a lot of work, such as configuring registers, enabling IRQ and so on. The Linux kernel provides a perfect interrupt framework. We only need to apply for interrupts and register interrupt processing functions. It is very convenient to use and does not need a series of complex regist ...

Let's start with a configuration file---- log4j.rootLogger=debug,stdout,logfile log4j.appender.stdout=org.apache.log4j.ConsoleAppender log4j.appender.stdout.Target=System.err log4j.appender.stdout.layout=org.apache.log4j.SimpleLayout log4j.appender.logfile=org.apache.log4j.FileAppender log4j.appender.logfile.File=d:/msb.log log4j.appender.logf ...

If the original link installation is not successful, you can refer to my version. sketch Kubedm binary deploys k8s cluster. The whole deployment process is relatively cumbersome, but it is helpful for entrants to preliminarily understand k8s components, networks and other information through installation, so they still need to know. What this ...

1. Introduction The tput command initializes and operates your terminal session through the terminfo database. Using tput, you can change several terminal functions, such as moving or changing the cursor, changing text properties, and clearing specific areas of the terminal screen. Like most commands in UNIX, the tput command can be used ...

1. Delete folders and files rm command Permission: all users can use rm command to delete directories on the terminal. Format: rm [option] DirName Description of rm command options The [options] in the command generally include the following: -i #Ask for confirmation one by one before deleting. -f #Even if the original file attribute ...

1 sliding window priority_queue is often used 0480 sliding window median 1 topic https://leetcode-cn.com/problems/sliding-window-median/ 2 problem solving ideas 1 use a multiset to maintain the current window, 1.1 do not use priority_ The element cannot be deleted because of the queue1.2 the reason why map/set is not used cannot contai ...

From my point of view, this article is a little rough. After all, it doesn't take much time. As an entry point, it may not enter the door? Redis is a very powerful database. I once read his source code and marveled at the monotony of his bottom layer, but the variability of his top layer. This is in response to the sentence "Tao gener ...

Docker 1, Overview The deployment environment (Redis, ES, Hadoop...) is required to publish a project. It is very troublesome to redeploy the environment on the server and cannot cross platform. Therefore, it is processed by Docker with Windows, and finally released to Linux. Traditional: development jar, operation and maintenance deplo ...

1, Experimental purpose Master the basic MapReduce programming methods through experiments;Master the methods to solve some common data processing problems with MapReduce, including data merging, data De duplication, data sorting and data mining. 2, Experimental platform Operating system: Ubuntu 18.04 (or Ubuntu 16.04)Hadoop version: 3.2.2 ...