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Docker ! 1. Appearance of docker One product: development – launch two sets of environments! Application environment, application configuration! Development – O & M. Question: I can run on my computer! Service unavailable due to version update! For operation and maintenance, the test is very big? The environment configuratio ...

Data structure and algorithm website recommendation: http://520it.com/binarytrees/ http://btv.melezinek.cz/binary-search-tree.html https://www.cs.usfca.edu/~galles/visualization/Algorithms.html https://yangez.github.io/btree-js https://www.codelike.in 1. Add node to binary search tree: add(E element) public class BinarySearchTree<E ex ...

prerequisite: CentOS8 has configured the STF environment or CentOS7 installs STF, Docker version Windows view adb version C:\Users\shenyf>adb --version Android Debug Bridge version 1.0.41 Version 31.0.3-7562133 Installed as D:\android-sdk-windows\platform-tools\adb.exe Method 1: connect mobile phone on STF service Just plug the debugging ...

CDH is the most complete and tested popular distribution of Apache Hadoop and related projects. CDH provides the core elements of Hadoop (scalable storage and distributed computing), as well as Web-based user interface and important enterprise functions. Installing virtual machine CentOs I installed the version of CentOs7 myself. There are ...

##Run tasks conditionally ####-Syntax of conditional tasks ######The when statement is used to run a task conditionally. It takes the condition to be tested as the value. If the conditions are met. Then run the task. If the conditions are not met, skip the task. ######Example: When when The value of is false Task execution will be skipped whe ...

YUM command management 1, YUM common commands yum list software name lists rpm -q for each package (both installed and uninstalled)View all warehouses using yum repolistinfo query software information rpm -qiReinstall reinstall rpm -ivhremove uninstall rpm -eprovides searchclean all clear cachemakecache create cache 1.1 installation pa ...

Cluster deployment of Apache HBase 1.2.12 under CentOS 1, Dependent environment Pre dependency and installation CentOS 7. X, JDK, Hadoop 2.7.7 cluster, zookeeper-3.4.14 clusterThe three node zookeeper is deployed this time. The corresponding machine hostname s are bigdata02, bigdata03 and bigdata04 The cluster planning is shown in the follo ...

Installation and configuration of ftp under Centos 1. FTP download and installation 1.ftp download yum install -y vsftpd 2.ftp startup systemctl enable vsftpd.service #Startup and self start systemctl start vsftpd.service #start-up systemctl stop vsftpd.service #stop it systemctl status vsftpd.service #state ...

1, About cobbler Cobbler is a Linux server installation service. It can quickly install and reinstall physical servers and virtual machines through network boot (PXE). At the same time, it can also manage DHCP, DNS, etc. Cobbler can be managed in the command line mode, and also provides a Web-based interface management tool (cobbler Web), ...

P4lang compilation environment configuration #Some words are written in the front The author has just begun to understand the content written in the article. He has referred to a lot of network materials. He writes a blog to record the learning process. If there is any misunderstanding, he is welcome to criticize! Installing VMVare This step ...