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What is hive? Open source by facebook, used to solve the data statistics of massive structured logs; A data warehouse tool based on hadoop uses HDFS to store and map structured data files into a table, and provides the function of sql like query. The bottom layer uses MR to calculate; The essence is to transform HQL into ...

1. Start docker service [root@docker ~]# systemctl start docker 2. View the image in docker [root@docker ~]# docker images REPOSITORY TAG IMAGE ID CREATED SIZE centos/mysql-57-centos7 latest 2e4ddfafaa6f 6 months ago 445MB gogs/gogs ...

Create mysql users and user groups groupadd mysql useradd -g mysql mysql passwd mysql Uninstalling mariadb from the system #query rpm -qa|grep mariadb Return mariadb-libs-5.5.60-1.el7_.x86_ #uninstall rpm -e mariadb-libs-5.5.60-1.el7_5.x86_64 Return error: Failed dependencies: libmysqlclient.so.18()(64bit) is needed by (installed) post ...

Zero. Background of the problem When you first learned SpringBoot + Angular, the database software still used MySQL, except that this time the MySQL service was no longer built using XAMPP, but a more convenient Docker was used to provide the service. 1. Reproduction of Problems When you configure your database, after you've set up your envi ...

Before that, I also introduced the articles related to MySQL high availability: Summary of MySQL synchronous replication and high availability schemes Introduction to Mysql route What is mysql route MySQL Router is a lightweight agent between application client and dbserver. It can detect, analyze and forward queries to back-end database insta ...

1. Download mysql installation package to / usr/local/soft [root@VM_0_9_centos ~]# cd /usr/local/soft[root@VM_0_9_centos soft]# wget http://dev.mysql.com/get/Downloads/MySQL-5.6/mysql-5.6.33-linux-glibc2.5-x86_64.tar.gz 2. Installation dependent environment [root@VM_0_9_centos soft]# yum -y install perl perl-devel autoconf libaio 3. ...

1. Overview mysql is a relational database. mysql (itself), a branch of mysql, was acquired by SUN before and after 2008 and then by oracle. System integration - everything is done (set solution) After the acquisition of mariadb mysql, the author developed mariadb based on earlier versions of MySQL in order to avoid the monopoly of the data ...

Article directory The directory structure is as follows The contents and explanations of each document are as follows To be perfect... The directory structure is as follows [root@server1 srv]# pwd /srv [root@server1 srv]# ls pillar salt [root@server1 srv]# tree . . ├── pillar │ ├── top.sls │ ...

1. Software Installation1.1 Update System yum -y install wget vim-enhanced mkdir /etc/yum.repos.d/backup mv /etc/yum.repos.d/{*.repo,backup} wget -O /etc/yum.repos.d/CentOS-Base.repo https://mirrors.163.com/.help/CentOS7-Base-163.repo wget -O /etc/yum.repos.d/epel.repo http://mirrors.aliyun.com/repo/epel-7.repo rm -rf /var/cache/yum rm -rf /va ...

Declaration of documents This article only makes a record of my rhce exercises and commemorates my test experience. No promotion or advertising is involved. The question bank in this article originates from Taobao Environment (referring to which set of environment a general friend knows clearly, if you really don't know, you can leave a messag ...