The operating system for CentOS, the site suddenly connected to the database, so friends directly restarted the server. In CLI mode, perform a service MYQSLD start discovery or Prompt "MySQL Deamon failed to start" error message.
#/etc/init.d/mysqld Start
MySQL Daemon failed to start.
Starting mysqld: [FAILED]
View Mysqld's log file
#less/var/log/mysqld.log
141201 11:35:20 mysqld_safe mysqld from PID File/var/run/mysqld/mysqld.pid ended
141201 11:35:43 Mysqld_safe starting mysqld daemon with databases From/var/lib/mysql
141201 11:35:43 [Warning] '--default-character-set ' is deprecated and'll be removed in a future release. Please use '--character-set-server ' instead.
141201 11:35:43 innodb:initializing buffer pool, size = 8.0M
141201 11:35:43 innodb:completed initialization of buffer pool
141201 11:35:43 innodb:started; Log sequence number 0 44233
141201 11:35:43 [ERROR] Can ' t start server:bind on TCP/IP port:permission denied
141201 11:35:43 [ERROR] Do you already has another MYSQLD server running on port:12345?
141201 11:35:43 [ERROR] Aborting
The description should be SELinux permission limit, need to turn off SELinux
View current configuration information.
# Getenforce
Enforcing
Indicates that SELinux is enabled. You just need to turn it off.
Close method:
/usr/sbin/setenforce 0 (0|1 open | off)
Or
Setsebool Ftpd_disable_trans 1
Linux under MySQL prompt "MySQL Deamon failed to start" error resolution