centos同时运行mysql5.6和mysql5.7
centos同时运行mysql5.6和mysql5.7一、准备
[*] 从mysql官网下载mysql5.6和mysql5.7
[*] 关闭防火墙，关闭selinux
[*] 创建mysql用户
~]# useradd mysql
二、安装
先安装mysql5.6
1.解压，并改名
~]# tar xf mysql-5.6.40-linux-glibc2.12-x86_64.tar.gz -C /opt
~]# cd /opt
~]# mv mysql-5.6.40-linux-glibc2.12-x86_64 mysql56
2.初始化mysql
~]# cd mysql56
~]# ./scripts/mysql_install_db --user=mysql --datadir=/opt/mysql56/data --basedir=/opt/mysql56
注：如果在安装的过程中出现
解决方法是安装autoconf库
执行命令：yum -y install autoconf
安装完成之后继续执行安装mysql的命令
这时候会在mysql中自动创建一个文件my.cng，编辑这个文件
basedir = /opt/mysql56
datadir = /opt/mysql56/data
port = 3316
socket = /opt/mysql56/mysql.sock
explicit_defaults_for_timestamp=true
sql_mode=NO_ENGINE_SUBSTITUTION,STRICT_TRANS_TABLES
3.运行启动mysql56
~]# ./bin/mysqld_safe --defaults-file=/opt/mysql56/my.cnf --user=root &
接下来安装mysql5.7
1.解压，并改名
~]# tar xf mysql-5.7.22-linux-glibc2.12-x86_64.tar.gz -C /opt
~]# cd /opt
~]# mv mysql-5.7.22-linux-glibc2.12-x86_64 mysql57
2.编辑my.cnf
~]# vim /etc/my.cnf
port = 3326
default-character-set = utf8
socket = /opt/mysql57/mysql.sock
port = 3326
socket = /opt/mysql57/mysql.sock
bind-address = 0.0.0.0
log_error=/opt/mysql57/log/mysqld_error.log
slow_query_log_file=/opt/mysql57/log/mysqld_slow.log
general_log_file=/opt/mysql57/log/mysqld_gener.log
basedir = /opt/mysql57
datadir = /opt/mysql57/data
port = 3326
socket = /opt/mysql57/mysql.sock
explicit_defaults_for_timestamp=true
tmpdir = /opt/mysql57
pid-file = /opt/mysql57/mysqld.pid
~]# mkdir data log
~]# bin/mysqld --initialize --user=mysql --basedir=/opt/mysql57 --datadir=/opt/mysql57/data
~]# cat log/mysqld_error.log
记下红框中的密码，这个是mysql的root用户密码
~]# mv /etc/my.cnf ./
~]# bin/mysqld_safe --defaults-file=/opt/mysql57/my.cnf --user=root &
至此，CentOS中同时安装mysql5.6和mysql5.7完成！！！
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