Linux Restart MySQL commands detailed _linux

How to start/stop/restart MySQL

First, the way to start

1, use service to start: Service mysqld start

2. Start with mysqld script:/etc/inint.d/mysqld start

3. Use Safe_mysqld to start:safe_mysqld&

Second, stop

1, use service to start: Service mysqld stop

2. Start with mysqld script:/etc/inint.d/mysqld stop

3, mysqladmin shutdown

Third, restart

1, use service to start: Service mysqld restart

2. Start with mysqld script:/etc/inint.d/mysqld restart

Questions

How to start/stop/restart MySQL

First, the way to start

1, use service to start: Service mysqld start

2. Start with mysqld script:/etc/inint.d/mysqld start

3. Use Safe_mysqld to start:safe_mysqld&

Second, stop

1, use service to start: Service mysqld stop

2. Start with mysqld script:/etc/inint.d/mysqld stop

3, mysqladmin shutdown

Third, restart

1, use service to start: Service mysqld restart

2. Start with mysqld script:/etc/inint.d/mysqld restart

When you first started to learn MySQL, it was redhat with your own. What's the boot/rc.d/init.d/start

This is simple, but later the more learned, the system itself with MySQL, some version is too low, some with

I want to install the low version of MySQL required for the Web service

Later I learned to install MySQL in the way of tar, and my MySQL was installed in the/usr/local/mysql directory.

Have encountered many problems. The most common are:

ERROR 2002:can ' t connect to the local MySQL server through socket

'/tmp/mysql.sock ' (111)

Solution:
[Root@test mysql]#/usr/local/mysql/bin/mysqladmin-u root/
>-s/var/lib/mysql/mysql.sock password ' your.passwd '
or make a connection.
Ln-s/var/lib/mysql/mysql.sock/tmp

In fact, the hint can not find/tmp/mysql.sock sometimes not in/tmp directory does not have this file, is started

The orders are wrong, I've met

Common several startup ways that themselves are not remember very clearly if you're sure TMP under there are mysql.sock this

File, try a few other commands.
/usr/local/mysql/bin/mysql-u root-p
/usr/local/mysql/bin/mysqld--user=mysql&
/usr/local/mysql/bin/mysqld--user=root&
/usr/local/mysql/bin/mysqld_safe--user=root&
/usr/local/mysql/bin/mysqld_safe--user=mysql&
/usr/local/mysql/bin/safe_mysqld--uer=root& (note that safe_mysqld and Mysqld_safe are different,& that MySQL is running in the background) mine will have an error.
Stopping server from PID file
/usr/local/mysql/data/localhost.localdomain.pid
060304 11:46:21 Mysqld Ended

This is a permissions issue, my MySQL directory belongs to root users, but also belong to the root group, the use of Mysqld_safe boot is no problem,

Everybody just pay attention to these few mysql,safe_mysqld,mysqld_safe,mysqld,mysqladmin. Try a few more times. In fact, sometimes MySQL has been started to see if MySQL starts the command
Ps-aux | grep mysqld
will see the following similar content
MySQL 6394 0.0 1.5 10528 992 PTS/3 S 16:16 0:00
/usr/local/mysql/
MySQL 6395 0.0 1.5 10528 992 PTS/3 S 16:16 0:00
/usr/local/mysql/
MySQL 6396 0.0 1.5 10528 992 PTS/3 S 16:16 0:00
/usr/local/mysql/
Root 6422 0.0 1.1 2408 732 PTS/3 S 16:20 0:00 grep
Mysql

See if MySQL is listening on port command
Netstat-tl | grep MySQL
will see the following similar content
TCP 0 0 *:mysql *:* LISTEN

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