mysql installation and mycat

1. Start mysql execute the command: service mysql start, shut down a service mysql stop

2. Execute mysql -u root mysql landing

3. Mysql permission to open Telnet (very important), execute the command:

   GRANT ALL PRIVILEGES ON *.* TO 'root'@'%' IDENTIFIED BY 'root' WITH GRANT OPTION;

4. Based on the local client tools to connect mysql data on Linux systems