c如何实现数据库同步(oracle数据同步日志)
安装依赖包
yum install -y yum-utils
配置yum源
vi /etc/yum.repos.d/mysql.repo
[mysql57-community]
name=MySQL 5.7 Community Server
baseurl=http://repo.mysql.com/yum/mysql-5.7-community/el/7/$basearch/
enabled=1
gpgcheck=0
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-mysql
查看可安装c如何实现数据库同步的mysql版本:
yum repolist all|grep mysql
yum安装mysql
yum install mysql-community-server -y
启动mysql服务
systemctl start mysqld
systemctl status mysqld
systemctl enable mysqld
root账户默认密码存储在错误日志中：
# grep 'temporary password' /var/log/mysqld.log
# mysql -uroot -p
mysql> set global validate_password_length=4;
mysql> set global validate_password_policy=0;
mysql> ALTER USER 'root'@'localhost' IDENTIFIED BY '123456';
mysql> grant all privileges on *.* to 'root'@'%' identified by '123456';
修改mysql配置文件
[client]
port = 3306
default-character-set = utf8mb4
[mysql]
port = 3306
default-character-set = utf8mb4
[mysqld]
user = mysql
port = 3306
datadir=/var/lib/mysql
socket=/var/lib/mysql/mysql.sock
bind-address = 0.0.0.0
log-error=/var/log/mysqld.log
pid-file=/var/run/mysqld/mysqld.pid
server-id = 113
log-bin = mysql-bin
auto-increment-increment = 2
auto-increment-offset = 1
sync_binlog = 1
slave-skip-errors = all
interactive_timeout = 57600
expire_logs_days = 7
max_connections = 10240
open_files_limit = 65535
innodb_buffer_pool_size = 1G
innodb_flush_log_at_trx_commit = 2
innodb_log_file_size = 256M
binlog-ignore-db = mysql #不需要同步的数据库
binlog_ignore_db = information_schema
binlog_ignore_db = performation_schema
binlog_ignore_db = sys
character-set-server = utf8mb4
collation-server = utf8mb4_unicode_ci
[mysqldump]
quick
quote-names
max_allowed_packet = 16M
重启mysql服务
systemctl restart mysqld
登陆mysql
mysql -uroot -p'123456'
2、mysql master2安装安装依赖包
yum install -y yum-utils
配置yum源
vi /etc/yum.repos.d/mysql.repo
[mysql57-community]
name=MySQL 5.7 Community Server
baseurl=http://repo.mysql.com/yum/mysql-5.7-community/el/7/$basearch/
enabled=1
gpgcheck=0
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-mysql
查看可安装的mysql版本:
yum repolist all|grep mysql
yum安装mysql
yum install mysql-community-server -y
启动mysql服务
systemctl start mysqld
systemctl status mysqld
systemctl enable mysqld
root账户默认密码存储在错误日志中：
# grep 'temporary password' /var/log/mysqld.log
# mysql -uroot -p
mysql> set global validate_password_length=4;
mysql> set global validate_password_policy=0;
mysql> ALTER USER 'root'@'localhost' IDENTIFIED BY '123456';
mysql> grant all privileges on *.* to 'root'@'%' identified by '123456';
修改mysql配置文件
[client]
port = 3306
default-character-set = utf8mb4
[mysql]
port = 3306
default-character-set = utf8mb4
[mysqld]
user = mysql
port = 3306
datadir=/var/lib/mysql
socket=/var/lib/mysql/mysql.sock
bind-address = 0.0.0.0
log-error=/var/log/mysqld.log
pid-file=/var/run/mysqld/mysqld.pid
server-id = 114
log-bin = mysql-bin
auto-increment-increment = 2
auto-increment-offset = 2
sync_binlog = 1
slave-skip-errors = all
interactive_timeout = 57600
expire_logs_days = 7
max_connections = 10240
open_files_limit = 65535
innodb_buffer_pool_size = 1G
innodb_flush_log_at_trx_commit = 2
innodb_log_file_size = 256M
binlog-ignore-db = mysql #不需要同步的数据库
binlog_ignore_db = information_schema
binlog_ignore_db = performation_schema
binlog_ignore_db = sys
character-set-server = utf8mb4
collation-server = utf8mb4_unicode_ci
[mysqldump]
quick
quote-names
max_allowed_packet = 16M
重启mysql服务
systemctl restart mysqld
登陆mysql
mysql -uroot -p'123456'
3、主主复制配置3.1、备份数据并导入数据mysql -uroot -p'123456' -e "show databases"|grep -Ev "Database|mysql|information_schema|performance_schema|sys"|xargs mysqldump -uroot -p'123456' --databases > mysql_bak.sql
source /root/mysql_bak.sql;
3.2、数据同步master2操作:
show master status;
master1操作:
mysql> stop slave;
mysql> change master to
master_host='192.168.1.114',
master_user='root',
master_password='123456',
master_log_file='mysql-bin.000001',
master_log_pos=90314628;
mysql> start slave;
mysql> show slave status\G;
master1操作:
show master status;
master2操作:
mysql> stop slave;
mysql> change master to
master_host='192.168.1.113',
master_user='root',
master_password='123456',
master_log_file='mysql-bin.000004',
master_log_pos=90314628;
mysql> start slave;
mysql> show slave status\G;
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