03 mysql主从复制架构及实现
实战：主从复制
配置
master：192.168.1.131 CentOS7.2
slave： 192.168.1.132 CentOS7.2
#主结点
[[email protected] ~]# yum -y install mariadb-server
[[email protected] ~]# vim /etc/my.cnf
添加
log-bin=master-bin
server-id=1
innodb_file_per_table=ON
skip_name_resolve=ON
[[email protected] ~]# ls /etc/my.cnf.d/
client.cnf mysql-clients.cnf server.cnf
[[email protected] ~]# systemctl start mariadb.service
[[email protected] ~]# mysql
MariaDB [(none)]> SHOW GLOBAL VARIABLES LIKE ‘log_bin‘;
+---------------+-------+
| Variable_name | Value |
+---------------+-------+
| log_bin | ON |
+---------------+-------+
MariaDB [(none)]> SHOW MASTER LOGS;
+-------------------+-----------+
| Log_name | File_size |
+-------------------+-----------+
| master-bin.000001 | 30331 |
| master-bin.000002 | 1038814 |
| master-bin.000003 | 245 |
+-------------------+-----------+
MariaDB [(none)]> SHOW GLOBAL VARIABLES LIKE ‘server_id‘;
+---------------+-------+
| Variable_name | Value |
+---------------+-------+
| server_id | 1 |
+---------------+-------+
MariaDB [(none)]> GRANT REPLICATION SLAVE,REPLICATION CLIENT ON *.* TO ‘repluser‘@‘192.168.%.%‘ IDENTIFIED BY ‘replpass‘;
MariaDB [(none)]> FLUSH PRIVILEGES;
#从结点
[[email protected] ~]# yum -y install mariadb-server
[[email protected] ~]# vim /etc/my.cnf
添加
relay-log=relay-log
relay-log-index=relay-log.index
server-id=7
innodb_file_per_table=ON
skip_name_resolve=ON
[[email protected] ~]# systemctl start mariadb.service
[[email protected] ~]# mysql
MariaDB [(none)]> SHOW GLOBAL VARIABLES LIKE ‘relay_log‘;
+---------------+-----------+
| Variable_name | Value |
+---------------+-----------+
| relay_log | relay-log |
+---------------+-----------+
MariaDB [(none)]> SHOW GLOBAL VARIABLES LIKE ‘server_id‘;
+---------------+-------+
| Variable_name | Value |
+---------------+-------+
| server_id | 7 |
+---------------+-------+
MariaDB [(none)]> CHANGE MASTER TO MASTER_HOST=‘192.168.1.131‘,MASTER_USER=‘repluser‘,MASTER_PASSWORD=‘replpass‘,MASTER_LOG_FILE=‘master-bin.000003‘,MASTER_LOG_POS=245;
MariaDB [(none)]> START SLAVE;
#主结点
MariaDB [(none)]> CREATE DATABASE mydb;
MariaDB [(none)]> SHOW DATABASES;
+--------------------+
| Database |
+--------------------+
| information_schema |
| mydb |
| mysql |
| performance_schema |
| test |
+--------------------+
MariaDB [(none)]> SHOW MASTER STATUS;
+-------------------+----------+--------------+------------------+
| File | Position | Binlog_Do_DB | Binlog_Ignore_DB |
+-------------------+----------+--------------+------------------+
| master-bin.000003 | 580 | | |
+-------------------+----------+--------------+------------------+
#从结点：
MariaDB [(none)]> show slave status \G
*************************** 1. row ***************************
Slave_IO_State: Waiting for master to send event
Master_Host: 192.168.1.131
Master_User: repluser
Master_Port: 3306
Connect_Retry: 60
Master_Log_File: master-bin.000003
Read_Master_Log_Pos: 580
Relay_Log_File: relay-log.000002
Relay_Log_Pos: 865
Relay_Master_Log_File: master-bin.000003
Slave_IO_Running: Yes
Slave_SQL_Running: Yes
Replicate_Do_DB:
Replicate_Ignore_DB:
Replicate_Do_Table:
Replicate_Ignore_Table:
Replicate_Wild_Do_Table:
Replicate_Wild_Ignore_Table:
Last_Errno: 0
Last_Error:
Skip_Counter: 0
Exec_Master_Log_Pos: 580
Relay_Log_Space: 1153
Until_Condition: None
Until_Log_File:
Until_Log_Pos: 0
Master_SSL_Allowed: No
Master_SSL_CA_File:
Master_SSL_CA_Path:
Master_SSL_Cert:
Master_SSL_Cipher:
Master_SSL_Key:
Seconds_Behind_Master: 0
Master_SSL_Verify_Server_Cert: No
Last_IO_Errno: 0
Last_IO_Error:
Last_SQL_Errno: 0
Last_SQL_Error:
Replicate_Ignore_Server_Ids:
Master_Server_Id: 1
1 row in set (0.00 sec)
结果：测试成功