CentOS中Mysql安裝方法

操作系統(tǒng)：CentOS Linux release 7.4.1708
內(nèi)核版本：3.10.0

# 手動安裝
1> 將mysql-5.5.54-linux2.6-x86_64.tar.gz上傳至CentOS服務(wù)器/tmp目錄下

2> 解壓壓縮包至/usr/local/

[root@localhost local]# tar -zxvf /tmp/mysql-5.5.54-linux2.6-x86_64.tar.gz -C /usr/local/

3> 設(shè)置軟連接

[root@localhost local]# ln -s mysql-5.5.54-linux2.6-x86_64/ mysql

4> 新增用戶組和用戶

[root@localhost local]# groupadd -r mysql
[root@localhost local]# useradd -g mysql -r -s /sbin/nologin mysql

5> 給/usr/local/mysql/*權(quán)限

[root@localhost local]# chown -R mysql.mysql /usr/local/mysql/*

6> 設(shè)置數(shù)據(jù)存儲路徑，并賦予權(quán)限

[root@localhost local]# mkdir –p /data/mydata
[root@localhost local]# chown -R mysql.mysql /data/mydata

7> 初始化mysql

[root@localhost local]# cd /usr/local/mysql
[root@localhost local]# scripts/mysql_install_db --datadir=/data/mydata --user=mysql

8> 改回root權(quán)限

[root@localhost local]# chown -R root /usr/local/mysql/*

9> 加入自動啟動

[root@localhost local]# cp -a mysql/support-files/mysql.server /etc/rc.d/init.d/mysqld
[root@localhost local]# chkconfig --add mysqld

10> 修改配置文件

[root@localhost local]# cp -a /usr/local/mysql/support-files/my-large.cnf /etc/my.cnf
[root@localhost local]# vi /data/mydata

在[mysqld]字段下添加 datadir = /data/mydata
thread_concurrency = CPU物理核心數(shù)的2倍
保存，退出/etc/my.cnf

11> 啟動mysql服務(wù)

[root@localhost local]# /etc/rc.d/init.d/mysqld start

12> 創(chuàng)建root用戶密碼
*先登錄mysql

[root@localhost local]# mysql -uroot -hlocalhost -p
Enter password:

*承上，顯示Enter password:
(直接回車)
*設(shè)置密碼，假設(shè)密碼為：zz2014info

mysql> SET PASSWORD FOR 'root'@'localhost'=PASSWORD('zz2014info');

*顯示如下，則表示創(chuàng)建密碼成功

Query OK, 0 rows affected (0.14 sec)

13> 創(chuàng)建mysql實例
*創(chuàng)建mysql實例，例如logincenter

**************************************************************
****************mysql實例名是區(qū)分大小寫的*********************
********************開發(fā)這邊統(tǒng)一小寫**************************
********************忽略大小寫可配置**************************
**************************************************************

mysql> CREATE DATABASE logincenter；
Query OK, 1 row affected (0.01 sec)

*查看實例是否創(chuàng)建成功

mysql> SHOW DATABASES;+--------------------+
  Database  
+--------------------+
  information_schema  
  logincenter  
  mysql  
  performance_schema  
  test  
+--------------------+

14> 將mysql命令加入環(huán)境變量

[root@localhost local]# echo "PATH=$PATH:/usr/local/mysql/bin" > /etc/profile.d/mysql.sh[root@localhost local]# echo "export PATH" >> /etc/profile.d/mysql.sh[root@localhost local]# source /etc/profile

15> 導(dǎo)入.sql語句腳本(以logincenter.sql為例)

[root@localhost local]# mysql -uroot -pzz2014info logincenter < /tmp/logincenter.sql

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