Linux环境中安装多个MySQL服务笔记

以下是本人在Linux环境中安装多个MySQL服务笔记,工大家参考！1、按照常规安装。
[root@ff_girl mysql5122]# chown -R root .
[root@ff_girl mysql5122]# chown -R mysql data
[root@ff_girl mysql5122]# chgrp -R mysql .
[root@ff_girl mysql5122]# cp support-files/my-small.cnf /etc/my5122.cnf
[root@ff_girl mysql5122]# scripts/mysql_install_db --basedir=/usr/local/mysql5122/ --datadir=/usr/local/mysql5122/data/ --user=mysql
Installing MySQL system tables...
OK
Filling help tables...
OK

To start mysqld at boot time you have to copy
support-files/mysql.server to the right place for your system

。。。
首次启动MYSQL
[root@ff_girl mysql5122]# bin/mysqld_safe --defaults-file=/etc/my5122.cnf &
[1] 13700
[root@ff_girl mysql5122]# 080124 15:01:46 mysqld_safe Logging to "/usr/local/mysql5122/data/localhost.localdomain.err".
080124 15:01:46 mysqld_safe Starting mysqld daemon with databases from /usr/local/mysql5122/data

[root@ff_girl mysql5122]# bin/mysql -uroot -p -S/tmp/mysql5122.sock
Enter password:
Welcome to the MySQL monitor. Commands end with ; or g.
Your MySQL connection id is 1
Server version: 5.1.22-rc MySQL Community Server （GPL）

Type "help;" or "h" for help. Type "c" to clear the buffer.

mysql> show databases;
+--------------------+
| Database |
+--------------------+
| information_schema |
| mysql |
| test |
+--------------------+
3 rows in set （0.00 sec）
给MYSQLD_MULTI赋SHUTDOWN权限。
mysql> grant shutdown on *.* to multi_admin@"localhost" identified by "123456";
Query OK, 0 rows affected （0.00 sec）

mysql> flush privileges;
Query OK, 0 rows affected （0.00 sec）

mysql> exit
Bye
停掉MYSQL服务。
[root@ff_girl ~]# /usr/local/mysql5122/bin/mysqladmin -uroot -p -S/tmp/mysql5122.sock shutdown
Enter password:
[root@ff_girl ~]#
拷贝元数据。
[root@ff_girl mysql5122]# cp data data2
[root@ff_girl mysql5122]# mv data data1
[root@ff_girl mysql5122]# chown -R mysql data2
[root@ff_girl mysql5122]# chgrp -R mysql .

示例配置文件

[root@ff_girl mysql5122]# cat /etc/my5122.cnf
[mysqld_multi]
mysqld = /usr/local/mysql5122/bin/mysqld_safe
mysqladmin = /usr/local/mysql5122/bin/mysqladmin
user = multi_admin
password = 123456
# The MySQL server
[mysqld1]
socket = /tmp/mysql1.sock
port = 3307
pid-file = /usr/local/mysql5122/data1/david_yeung.pid1
datadir = /usr/local/mysql5122/data1
language = /usr/local/mysql5122/share/mysql/english
user = mysql
# The MySQL server
[mysqld2]
port = 3308
socket = /tmp/mysql2.sock
pid-file = /usr/local/mysql5122/data2/david_yeung.pid2
datadir = /usr/local/mysql5122/data2
language = /usr/local/mysql5122/share/mysql/english
user = mysql
。。。
[isamchk]
key_buffer = 8M
sort_buffer_size = 8M

[myisamchk]
key_buffer = 8M
sort_buffer_size = 8M

[mysqlhotcopy]
interactive-timeout
[root@ff_girl mysql5122]#

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