mysql 5.7.14 安装配置代码分享

本文记录了mysql 5.7.14 安装配置代码，具体内容如下

os: centos 6.6  
db: mysql 5.7.14  

1. 下载mysql  

cd /tools  

wget http://dev.mysql.com/get/downloads/mysql-5.7/mysql-5.7.14-linux-glibc2.5-x86_64.tar.gz 

2.创建mysql二进制解压文件的目录 

mkdir -p /opt/mysql 

[root@zw-test-db mysql]# cd /tools/ 
[root@zw-test-db tools]# ll -l mysql-5.7.14-linux-glibc2.5-x86_64.tar.gz 
-rw-r--r-- 1 root root 642694570 aug 29 15:02 mysql-5.7.14-linux-glibc2.5-x86_64.tar.gz 

3. 解压到 /opt/mysql 目录下 

[root@zw-test-db tools]# cd /opt/mysql/ 
[root@zw-test-db mysql]# tar -zxvf /tools/mysql-5.7.14-linux-glibc2.5-x86_64.tar.gz 


[root@zw-test-db mysql]# mv mysql-5.7.14-linux-glibc2.5-x86_64/ mysql-5.7.14 
[root@zw-test-db mysql]# ll 
drwxr-xr-x 9 7161 31415 4096 jul 12 21:03 mysql-5.7.14 

4. 创建一个软连接到 /usr/local 

[root@zw-test-db mysql]# cd /usr/local/ 
[root@zw-test-db local]# ls 
bin etc games include lib lib64 libexec redis-3.2.2 sbin share src 
[root@zw-test-db local]# ln -s /opt/mysql/mysql-5.7.14 /usr/local/mysql 


[root@zw-test-db local]# ll mysql 
lrwxrwxrwx 1 root root 23 aug 31 17:36 mysql -> /opt/mysql/mysql-5.7.14 
[root@zw-test-db local]# 

5. 创建用户 

[root@zw-test-db /]# groupadd mysql 
[root@zw-test-db /]# useradd -m -g mysql -s /sbin/nologin -d /usr/local/mysql mysql 

-s  nologin 没有shell 不能登录的 

6. 基于配置文件创建基本的目录 

mkdir /data/mysql 
mkdir /data/mysql/mysql_3306 
cd /data/mysql/mysql_3306/ 
mkdir data 
mkdir logs 
mkdir tmp 
chown -r mysql:mysql /data/mysql/mysql3306 

7.创建/etc/my.cnf配置文件 (过程略) 

8.初始化，5.7的初始化会加一个默认的密码

[root@zw-test-db mysql]# cd /usr/local/mysql/ 
[root@zw-test-db mysql]# ./bin/mysqld --initialize 


[root@zw-test-db data]# pwd 
/data/mysql/mysql_3306/data 

### 下面是5.5， 5.6 初始化 
/usr/local/mysql/scripts/mysql_install_db --user=mysql --basedir=/usr/local/mysql 

9.查看 error日志，看有没有error 

cd /data/mysql/mysql_3306/data 

[root@zw-test-db data]# vim error.log 
[root@zw-test-db data]# tail -f error.log 
2016-08-31t09:44:32.394657z 0 [note] giving 0 client threads a chance to die gracefully 
2016-08-31t09:44:32.394680z 0 [note] shutting down slave threads 
2016-08-31t09:44:32.394686z 0 [note] forcefully disconnecting 0 remaining clients 
2016-08-31t09:44:32.415409z 0 [note] binlog end 
2016-08-31t09:44:32.434217z 0 [note] innodb: fts optimize thread exiting.
2016-08-31t09:44:32.434293z 0 [note] innodb: starting shutdown... 
2016-08-31t09:44:32.534587z 0 [note] innodb: dumping buffer pool(s) to /data/mysql/mysql_3306/data/ib_buffer_pool 
2016-08-31t09:44:32.534741z 0 [note] innodb: buffer pool(s) dump completed at 160831 17:44:32 
2016-08-31t09:44:34.308784z 0 [note] innodb: shutdown completed; log sequence number 2525428 
2016-08-31t09:44:34.308945z 0 [note] innodb: removed temporary tablespace data file: "ibtmp1" 

10.查看初始化密码 

[root@zw-test-db data]# grep password error.log  
2016-08-31t09:44:21.172167z 1 [note] a temporary password is generated for : 8aahkrkxfm%t 

密码是： 8aahkrkxfm%t 

11 创建一个启动脚本 

[root@zw-test-db data]# cd /usr/local/mysql/ 
[root@zw-test-db mysql]# cp support-files/mysql.server /etc/init.d/mysql  
cp: overwrite `/etc/init.d/mysql'? y 

12.启动mysql的三种方式 

方式一： 

root@zw-test-db bin]# ./mysqld_safe --user=mysql &
[1] 12455 
[root@zw-test-db bin]# 160830 15:18:01 mysqld_safe logging to '/usr/local/mysql/data/zw-test-db.err'. 
160830 15:18:01 mysqld_safe starting mysqld daemon with databases from /usr/local/mysql/data 

方式二： 

[root@zw-test-db bin]# /etc/init.d/mysqld restart
shutting down mysql..160830 15:18:14 mysqld_safe mysqld from pid file /usr/local/mysql/data/zw-test-db.pid ended
        [ ok ]
 
starting mysql.      [ ok ] 
[1]+ done   ./mysqld_safe --user=mysql 

方式三： 

[root@zw-test-db bin]# service mysqld restart 
shutting down mysql..     [ ok ]
starting mysql.      [ ok ] 
[root@zw-test-db bin]# 

13. 添加环境变量 

echo "export path=\$path:/usr/local/mysql/bin" >> /root/.bash_profile 
source /root/.bash_profile 

14. 登陆 

[root@zw-test-db mysql]# mysql -u root -p 
enter password: 
welcome to the mysql monitor. commands end with ; or \g. 
your mysql connection id is 3 
server version: 5.7.14-log 


copyright (c) 2000, 2016, 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@localhost [(none)]>show databases; --提示要修改密码 
error 1820 (hy000): you must reset your password using alter user statement before executing this statement. 

15.修改密码 

root@localhost [(none)]>alter user user() identified by '123456'; 
query ok, 0 rows affected (0.00 sec) 

mysql> flush privileges; 
query ok, 0 rows affected (0.00 sec) 

root@localhost [(none)]>show databases;
+--------------------+ 
| database  | 
+--------------------+ 
| information_schema | 
| mysql  | 
| performance_schema | 
| sys  | 
+--------------------+ 
4 rows in set (0.00 sec) 

可以查看数据库了 

16. 5.6版本之前需要帐号安全加固，5,7以后 test数据库都没有了 

delete from mysql.user where user!='root' or host!='localhost'; --删除非root用户，登陆主机不是localhost的账号 
flush privileges; 
alter user user() identified by '123456'; 
drop database test; 
truncate mysql.db;

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