MySQL5.7安装
1、下载安装包
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wget https://cdn.MySQL.com//Downloads/MySQL-5.7/mysql-5.7.22-linux-glibc2.12-x86_64.tar.gz
2、解压到/opt下
[root@Master opt]# tar xvf mysql-5.7.22-linux-glibc2.12-x86_64.tar.gz
[root@Master opt]# ll
total 628712
drwxr-xr-x. 9 root root 4096 Jul 6 19:47 mysql-5.7.22-linux-glibc2.12-x86_64
-rw-r--r--. 1 root root 643790848 Jul 6 11:44 mysql-5.7.22-linux-glibc2.12-x86_64.tar.gz
3、作软链接到/usr/local/mysql
[root@Master opt]# ln -s /opt/mysql-5.7.22-linux-glibc2.12-x86_64 /usr/local/mysql
[root@Master opt]# ll /usr/local/
total 40
drwxr-xr-x. 2 root root 4096 Sep 23 2011 bin
drwxr-xr-x. 2 root root 4096 Sep 23 2011 etc
drwxr-xr-x. 2 root root 4096 Sep 23 2011 games
drwxr-xr-x. 2 root root 4096 Sep 23 2011 include
drwxr-xr-x. 2 root root 4096 Sep 23 2011 lib
drwxr-xr-x. 2 root root 4096 Sep 23 2011 lib64
drwxr-xr-x. 2 root root 4096 Sep 23 2011 libexec
lrwxrwxrwx. 1 root root 40 Jul 6 20:01 mysql -> /opt/mysql-5.7.22-linux-glibc2.12-x86_64
drwxr-xr-x. 2 root root 4096 Sep 23 2011 sbin
drwxr-xr-x. 5 root root 4096 Feb 16 2017 share
drwxr-xr-x. 2 root root 4096 Sep 23 2011 src
4、创建用户
[root@Master opt]# groupadd mysql
[root@Master opt]# useradd -g mysql -s /sbin/nologin -d /usr/local/mysql/ -M mysql
5、环境变量
[root@Master opt]# echo PATH=$PATH:/usr/local/mysql/bin >>/etc/profile
[root@Master opt]# source /etc/profile
6、创建必须的目录
mkdir -p /data/mysql/mysql3306/{data,tmp,logs}
7、生成my.cnf(根据自己需求自动生成)
叶总的配置文件生成工具
http://imysql.com/my-cnf-wizard.html
8、目录权限
[root@Master /]# chown -R mysql:mysql /data/mysql/mysql3306/
[root@Master /]# chown -R mysql:mysql /usr/local/mysql
9、数据库初始化
[root@Master /]# mysqld --defaults-file=/etc/my.cnf --initialize --user=user --basedir=/usr/local/mysql/ --datadir=/data/mysql/mysql3306/data/
10、数据库密码(.lZ!-2t2-n9s)
[root@Master data]# more /data/mysql/mysql3306/data/dataerror.log
2018-07-06T13:46:32.795821Z 1 [Note] A temporary password is generated for root@localhost: .lZ!-2t2-n9s
11、启动数据库
[root@Master support-files]# pwd
/usr/local/mysql/support-files
[root@Master support-files]# cp mysql.server /etc/init.d/mysqld
[root@Master support-files]# /etc/init.d/mysqld start
Starting MySQL.. SUCCESS!
12、登录数据库
输入第10步的密码
Starting MySQL.. SUCCESS!
[root@Master support-files]# mysql -uroot -p
Enter password:
Welcome to the MySQL monitor. Commands end with ; or \g.
Your MySQL connection id is 2
Server version: 5.7.22-log
Copyright (c) 2000, 2018, Oracle and/or its affiliates. All rights reserved.
Oracle is a registered trademark of Oracle Corporation and/or its
affiliates. Other names may be trademarks of their respective
owners.
Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.
root@Master 21:57: [(none)]>
root@Master 21:57: [(none)]> show databases;
ERROR 1820 (HY000): You must reset your password using ALTER USER statement before executing this statement
13、改root密码
[root@Master support-files]# mysqladmin -uroot -p password 'root'
Enter password:
mysqladmin: [Warning] Using a password on the command line interface can be insecure.
Warning: Since password will be sent to server in plain text, use ssl connection to ensure password safety
14、登录数据库
[root@Master support-files]# mysql -uroot -proot
mysql: [Warning] Using a password on the command line interface can be insecure.
Welcome to the MySQL monitor. Commands end with ; or \g.
Your MySQL connection id is 5
Server version: 5.7.22-log MySQL Community Server (GPL)
Copyright (c) 2000, 2018, Oracle and/or its affiliates. All rights reserved.
Oracle is a registered trademark of Oracle Corporation and/or its
affiliates. Other names may be trademarks of their respective
owners.
Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.
root@Master 22:01: [(none)]> show databases;
+--------------------+
| Database |
+--------------------+
| information_schema |
| mysql |
| performance_schema |
| sys |
+--------------------+
4 rows in set (0.00 sec)
问题:
初始化时遇到报错
error while loading shared libraries: libnuma.so.1: cannot open shared object file: No such file or directory
解决:
yum -y install numactl.x86_64
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