Programmer Think

Inodes and directory entriesFile system itself is a mechanism for organizing and managing files on storage devices. Different file systems will be formed in different ways of organization. The most important thing you should remember is that everything is a file in Linux. Not only ordinary files and directories, but also block devices, sockets, ...

1, Overview DR mode Also called Direct Routing The semi open network structure is adopted, which is similar to the structure of tun mode, but the node and scheduler are in the same physical network The load scheduler connects with each node server through the local network, and there is no need to establish a special ip tunnel The schedul ...

Problem description After configuring the Hadoop Namenode, secondarynode, and datanode nodes, configure mapred site in the hadoop /etc directory xml,yarn-site.xml file. After configuration, start resource manager and nodemanager. Among them, yen site The XML configuration is as follows: <property> <name>yarn.node ...

1.ss5 build sock5 server 1.1 download ss5 source code https://sourceforge.net/projects/ss5/files/ss5/ https://nchc.dl.sourceforge.net/project/ss5/ss5/3.8.9-8/ss5-3.8.9-8.tar.gz 1.2 installation related requirements yum install -y pam-devel yum install -y openldap-devel yum install -y openssl-devel 1.3 compilation and installation ...

preface I use: Development tool: ideajdk: 1.8mysql: 5.7.35tomcat: 8.0.35ssh tool: FinalShell 1, Environment configuration and construction 1. Installation and configuration of JDK download 1) I use the Linux version of tar GZ compressed package, you need to download others by yourself install 1) After downloading, put the compress ...

effect A program needs to be executed every minute to check the operation status of the systemThe business data of the past day shall be counted every morningLog files need to be backed up every week (if there is too much log information, the disk space will be occupied, and most of the logs are analyzed in real time within a week, and we will ...

1) Experimental platform: punctual atom alpha Linux development board 2) Platform purchase address: https://item.taobao.com/item.htm?id=603672744434 2) Full set of experimental source code + manual + video download address: http://www.openedv.com/thread-300792-1-1.html 3) Students interested in punctual atomic Linux can add group discussion: 93 ...

A Linux tomcat automatic deployment shell script Because Jenkins was installed on the server to realize automatic deployment failed, we found an alternative method and copied an automatic deployment script on the Internet. This script is written in shell language, and I have never been in contact with shell programming before, so I try to d ...

Linux journey one 3: disk quota and advanced file management Source: pixels Application and practice of disk quota What is disk quota General purpose of disk quotas Limit the maximum disk quota that a user group can useLimit the maximum disk quota for a userLimit the maximum disk quota for a directory Disk quota is a tool that provides ...

Docker installation Uninstall the old version. The older docker version is docker or docker engine. If you have installed these programs, uninstall them and their related dependencies. sudo yum remove docker \ docker-client \ docker-client-latest \ docker-common \ docker- ...