mysql主从修改系统参数步骤_mysql主从配置的参数配置与步骤_MySQL
mysql主從配置的參數(shù)配置與步驟_MySQL
主從配置的步驟：
在主庫建立要同步的數(shù)據(jù)庫,建立主庫的帳號(hào)和修改主備庫配置
create database web default character set utf8
grant replication slave on *.* to 'repdcssub'@'192.168.191.112' identified by '123456';
grant all privileges on *.* to 'repdcssub'@'192.168.191.112' identified by '123456'
mysql -h192.168.191.113 -urep -p123456
mysqldump --master-data 這樣可以在從上還原,
建立同步用戶(主從)
grant replication slave on *.* to 'repdcs'@'192.168.191.110' identified by '123456';
grant all privileges on *.* to 'repdcs'@'192.168.191.110' identified by '123456';
FLUSH PRIVILEGES;
mysql> show master status;
FLUSH PRIVILEGES;
從庫配置my.cnf
[root@ligangtest u02]# more /etc/my.cnf
[mysqld]
datadir=/u02/ligangdata
socket=/var/lib/mysql/mysql.sock
user=mysql
old_passwords=1
character-set-server=utf8
symbolic-links=0
lower_case_table_names=1
default-storage-engine=innoDB
#innodb_log_buffer_pool_size=2G
max_connections=300
server-id=2
init_connect='SET NAMES utf8'
log-bin=mysqlbin
master-host=192.168.191.111
master-user=repdcs
master-pass=123456
master-connect-retry=60
replicate-do-db=dcs
[mysqld_safe]
log-error=/u03/log/mysqld.log
pid-file=/var/run/mysqld/mysqld.pid
[mysql]
default-character-set=utf8
#character-set-server=utf8
主庫配置my.ini
[root@ligang log]# more /etc/my.cnf
[mysqld]
datadir=/u02/ligangdata
socket=/var/lib/mysql/mysql.sock
user=mysql
old_passwords=1
character-set-server=utf8
# Disabling symbolic-links is recommended to prevent assorted security risks;
symbolic-links=0
lower_case_table_names=1
default-storage-engine=innoDB
server-id=1
log-bin=mysqlbin
innodb_flush_log_at_trx_commit=1
sync_binlog=1
init_connect='SET NAMES utf8'
#innodb_log_buffer_pool_size=2G
max_connections=300
[mysqld_safe]
log-error=/u03/log/mysqld.log
pid-file=/var/run/mysqld/mysqld.pid
[mysql]
default-character-set=utf8
#character-set-server=utf8
參數(shù)配置說明
server-id=n //設(shè)置數(shù)據(jù)庫id默認(rèn)主服務(wù)器是1可以隨便設(shè)置但是如果有多臺(tái)從服務(wù)器則不能重復(fù)。
master-host=192.168.191.111 //主服務(wù)器的IP地址或者域名
master-port=3306 //主數(shù)據(jù)庫的端口號(hào)
master-user=repdcs //同步數(shù)據(jù)庫的用戶
master-password=123456 //同步數(shù)據(jù)庫的密碼
master-connect-retry=60 //如果從服務(wù)器發(fā)現(xiàn)主服務(wù)器斷掉，重新連接的時(shí)間差
replicate-do-db=dcs //進(jìn)行同步的數(shù)據(jù)庫
設(shè)置從服務(wù)器為readonly
mysql -e "set global read_only=1;"
查看主備庫正常與否的命令：
SHOW SLAVE STATUS;
SHOW MASTER STATUS;
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TAG標(biāo)簽：主從步驟參數(shù)
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