Mysql 多实例配置

1 安装数据库（略）

2 初始化数据库 3306 3307 两个实例

 

[root@localhost] /Data/apps/mysql/scripts/mysql_install_db --basedir=/Data/apps/mysql --datadir=/Data/data/dbdata_3306 --user=mysql
[root@localhost] /Data/apps/mysql/scripts/mysql_install_db --basedir=/Data/apps/mysql --datadir=/Data/data/dbdata_3307 --user=mysql

 3 创建配置数据库配置文件

 

  3306配置文件

  

[client]
port = 3306
socket = /Data/data/dbdata_3306/mysql.sock
[mysqld]
datadir=/Data/data/dbdata_3306/
skip-name-resolve
lower_case_table_names=1
innodb_file_per_table=1
port = 3306
pid-file = /Data/data/dbdata_3306/mysql.pid
socket = /Data/data/dbdata_3306/mysql.sock
back_log = 50
max_connections = 300
max_connect_errors = 1000
table_open_cache = 2048
max_allowed_packet = 16M
binlog_cache_size = 2M
max_heap_table_size = 64M
sort_buffer_size = 2M
join_buffer_size = 2M
thread_cache_size = 64
thread_concurrency = 8
query_cache_size = 64M
query_cache_limit = 2M
ft_min_word_len = 4
default-storage-engine = innodb
thread_stack = 192K
transaction_isolation = REPEATABLE-READ
tmp_table_size = 64M
log-bin=mysql-bin
binlog_format=mixed
slow_query_log
long_query_time = 1
server-id = 1
key_buffer_size = 8M
read_buffer_size = 2M
read_rnd_buffer_size = 2M
bulk_insert_buffer_size = 64M
myisam_sort_buffer_size = 128M
myisam_max_sort_file_size = 10G
myisam_repair_threads = 1
myisam_recover
innodb_additional_mem_pool_size = 16M
innodb_buffer_pool_size = 200M
innodb_data_file_path = ibdata1:10M:autoextend
innodb_file_io_threads = 8
innodb_thread_concurrency = 16
innodb_flush_log_at_trx_commit = 1
innodb_log_buffer_size = 16M
innodb_log_file_size = 512M
innodb_log_files_in_group = 3
innodb_max_dirty_pages_pct = 60
innodb_lock_wait_timeout = 120
[mysqldump]
quick
max_allowed_packet = 256M
[mysql]
no-auto-rehash
prompt=\\u@\\d \\R:\\m>
[myisamchk]
key_buffer_size = 512M
sort_buffer_size = 512M
read_buffer = 8M
write_buffer = 8M
[mysqlhotcopy]
interactive-timeout
[mysqld_safe]
open-files-limit = 8192

 

 

  3307 配置文件

  

[client]
port = 3307
socket = /Data/data/dbdata_3307/mysql.sock
[mysqld]
datadir=/Data/data/dbdata_3307/
skip-name-resolve
lower_case_table_names=1
innodb_file_per_table=1
port = 3307
pid-file = /Data/data/dbdata_3307/mysql.pid
socket = /Data/data/dbdata_3307/mysql.sock
back_log = 50
max_connections = 300
max_connect_errors = 1000
table_open_cache = 2048
max_allowed_packet = 16M
binlog_cache_size = 2M
max_heap_table_size = 64M
sort_buffer_size = 2M
join_buffer_size = 2M
thread_cache_size = 64
thread_concurrency = 8
query_cache_size = 64M
query_cache_limit = 2M
ft_min_word_len = 4
default-storage-engine = innodb
thread_stack = 192K
transaction_isolation = REPEATABLE-READ
tmp_table_size = 64M
log-bin=mysql-bin
binlog_format=mixed
slow_query_log
long_query_time = 1
server-id = 1
key_buffer_size = 8M
read_buffer_size = 2M
read_rnd_buffer_size = 2M
bulk_insert_buffer_size = 64M
myisam_sort_buffer_size = 128M
myisam_max_sort_file_size = 10G
myisam_repair_threads = 1
myisam_recover
innodb_additional_mem_pool_size = 16M
innodb_buffer_pool_size = 200M
innodb_data_file_path = ibdata1:10M:autoextend
innodb_file_io_threads = 8
innodb_thread_concurrency = 16
innodb_flush_log_at_trx_commit = 1
innodb_log_buffer_size = 16M
innodb_log_file_size = 512M
innodb_log_files_in_group = 3
innodb_max_dirty_pages_pct = 60
innodb_lock_wait_timeout = 120
[mysqldump]
quick
max_allowed_packet = 256M
[mysql]
no-auto-rehash
prompt=\\u@\\d \\R:\\m>
[myisamchk]
key_buffer_size = 512M
sort_buffer_size = 512M
read_buffer = 8M
write_buffer = 8M
[mysqlhotcopy]
interactive-timeout
[mysqld_safe]
open-files-limit = 8192

 
 4 创建启动文件

   3306实例的mysqld  （/Data/data/dbdata_3306/mysqld）

#!/bin/bash
mysql_port=3306
mysql_username="root"
mysql_password="123456"
function_start_mysql()
{
printf "Starting MySQL...\n"
/bin/sh /Data/apps/mysql/bin/mysqld_safe --defaults-file=/Data/data/dbdata_${mysql_port}/my.cnf 2>&1 > /dev/null &
}
function_stop_mysql()
{
printf "Stoping MySQL...\n"
/Data/apps/mysql/bin/mysqladmin -u ${mysql_username} -p${mysql_password} -S /Data/data/dbdata_${mysql_port}/mysql.sock shutdown
}
function_restart_mysql()
{
printf "Restarting MySQL...\n"
function_stop_mysql
function_start_mysql
}
function_kill_mysql()
{
kill -9 $(ps -ef | grep 'bin/mysqld_safe' | grep ${mysql_port} | awk '{printf $2}')
kill -9 $(ps -ef | grep 'libexec/mysqld' | grep ${mysql_port} | awk '{printf $2}')
}
case $1 in
start)
function_start_mysql;;
stop)
function_stop_mysql;;
kill)
function_kill_mysql;;
restart)
function_stop_mysql
function_start_mysql;;
*)
echo "Usage: /Data/data/dbdata_${mysql_port}/mysqld {start|stop|restart|kill}";;
esac

 

 

 3307实例的mysqld  （/Data/data/dbdata_3307/mysqld）修改下mysql_port=3307即可。

  

  启动两个实例

   /Data/data/mysql/data3306/mysqld start

   /Data/data/mysql/data3307/mysqld start

 

 分别设置root密码

  /Data/apps/mysql/bin/mysqladmin -uroot password  -S /Data/data/dbdata_3306/mysql.sock

  /Data/apps/mysql/bin/mysqladmin -uroot password  -S /Data/data/dbdata_3307/mysql.sock

 

 登录测试（创建所需用户）

 /Data/apps/mysql/bin/mysql -uroot -p123456 -S /Data/data/dbdata_3306/mysql.sock 

 /Data/apps/mysql/bin/mysql -uroot -p123456 -S /Data/data/dbdata_3307/mysql.sock 

 

   ......