mysql implements database directory migration under linux

1. Check the mysql installation directory

Check the installation directory from the directory etc/my.cnf

2. Enter the mysql directory and stop the mysql service

cd usr/local/mysql
service mysql stop

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3. Move the entire mysql directory

cp -rf /usr/local/mysql/  home/mysql

4. Modify the my.cnf file mysql location and save it

　　[client]　　
　　default-character-set=utf8
　　[mysqld]　　
　　character-set-server=utf8　　
　　datadir=/home/mysql/data　　
　　basedir=/home/mysql　　
　　socket=/home/mysql/tmp/mysql.sock　　
　　lower_case_table_names=1
　　[mysqld_safe]　　
　　log-error=/home/mysql/log/mysqld.log

5. Restart the service:

cd usr/local/mysql
service mysql start

Encountered the following problem:

Starting MySQL.The server quit without updating PID file (/ home/local/mysql/data/localhost.localdomain.pid).

##The solution is as follows:

Modify /home/ Local/mysql/data directory permissions, the command is as follows:

chown -R mysql.mysql /home/local/mysql/data

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