在同一台机运行多个Mysql 服务(1)(2)

提示:建立一个帐号,专门用于下面主从复制,本例用的的帐号repl, 口令为:'1234567890', 可让其拥有select_priv, reload_priv,process_priv,grant_priv,super_priv,repl_slave_priv,repl_client_priv权限，并能通过任何客户进行访问,即访问客户为'%'。
主要是修改my.cnf中的内容,让每个mysql生成自己的bin-log文件及各自的运行环境，现贴上我的my.cnf全部内容,相关参数与请参考mysql 官文手册.

#[client]
#password       = your_password
#port           = 3306
#socket         = /tmp/mysql.sock

[mysqld_multi]
mysqld = /usr/local/mysql/bin/mysqld_safe
mysqladmin = /usr/local/mysql/bin/mysqladmin
user = mysql
password = mypasswd
[mysqld1]
port      = 3306
socket    = /tmp/mysql.sock1
skip-locking
pid-file=/usr/local/mysql/data/net-app1a.pid
datadir = /usr/local/mysql/data
log=/usr/local/mysql/data/net-app1.log
user = mysql
log-slow-queries=/usr/local/mysql/data/slowquery.log
long_query_time = 2
key_buffer = 256M
max_allowed_packet = 1M
table_cache = 512
sort_buffer_size = 2M
read_buffer_size = 2M
myisam_sort_buffer_size = 64M
thread_cache = 32
query_cache_size = 32M
thread_concurrency = 2
max_connections=500
log-bin
log-bin=/usr/local/mysql/data/app-net1_1-bin
server-id       = 1

[mysqld2]
port = 3307
socket = /tmp/mysql.sock2
pid-file = /usr/local/mysql/data2/net-app1b.pid
datadir = /usr/local/mysql/data2
log=/usr/local/mysql/data2/net-app1.log
user = mysql
log-slow-queries=/usr/local/mysql/data2/slowquery.log
long_query_time = 10
key_buffer = 128M
max_allowed_packet = 1M
table_cache = 512
sort_buffer_size = 1M
read_buffer_size = 1M
myisam_sort_buffer_size = 32M
thread_cache = 32
query_cache_size = 16M
thread_concurrency = 2
max_connections=300
log-bin
log-bin=/usr/local/mysql/data2/app-net1_2-bin
server-id       = 1

[mysqld3]
port = 3308
socket = /tmp/mysql.sock3
skip-locking
pid-file = /usr/local/mysql/data3/net-app1c.pid
datadir = /usr/local/mysql/data3
log=/usr/local/mysql/data3/net-app1.log
user = mysql
log-bin
log-bin=/usr/local/mysql/data3/app-net1_3-bin
server-id       = 1

[mysqld4]
port            = 3309
socket          = /tmp/mysql.sock4
skip-locking
pid-file = /usr/local/mysql/data1/app-net1d.pid
datadir = /usr/local/mysql/data1
log=/usr/local/mysql/data1/net-app1.log
user = mysql
log-bin
log-bin=/usr/local/mysql/data1/app-net1_4-bin
server-id      = 1

[mysqldump]
quick
max_allowed_packet = 16M

[mysql]
no-auto-rehash
# Remove the next comment character if you are not familiar with SQL
#safe-updates

[isamchk]
key_buffer = 128M
sort_buffer_size = 128M
read_buffer = 2M
write_buffer = 2M

[myisamchk]
key_buffer = 128M
sort_buffer_size = 128M
read_buffer = 2M
write_buffer = 2M

[mysqlhotcopy]
interactive-timeout

启动多mysql服务都是相同的,
db-app:/ # /usr/local/mysq/bin/mysqld_multi   --config-file=/etc/my.cnf start 1-4