搭建mysql服务器，并实现主从复制
1、环境配置
| 主机名 | IP | 角色 | |
|---|---|---|---|
| node01 | 192.168.85.128 | mysql-master | |
| node02 | 192.168.85.129 | mysql-slave |
2、安装mariadb-server
node01# yum install -y mariadb-server
node02# yum install -y mariadb-server
3、node01修改配置文件，启动服务
node01# vim /etc/my.cnf.d/server.cnf
[mysqld]
innodb_file_per_table=ON
skip_name_resolve=ON
server_id=1
log-bin=master-log
node01# systemctl start mariadb-server
node01# systemctl enable mariadb-server
node01# mysql_secure_installation (初始化数据库)
[root@node01 ~]# mysql -u root -p
Enter password:
Welcome to the MariaDB monitor. Commands end with ; or \g.
Your MariaDB connection id is 5
Server version: 5.5.60-MariaDB MariaDB Server
Copyright (c) 2000, 2018, Oracle, MariaDB Corporation Ab and others.
Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.
MariaDB [(none)]> show master status;
+-------------------+----------+--------------+------------------+
| File | Position | Binlog_Do_DB | Binlog_Ignore_DB |
+-------------------+----------+--------------+------------------+
| master-log.000004 | 245 | | |
+-------------------+----------+--------------+------------------+
1 row in set (0.00 sec)
4、在node02配置mariadb配置文件，并启动服务
node02# vim /etc/my.cnf.d/server.cnf
[mysqld]
innodb_file_per_table=ON
skip_name_resolve=ON
server_id=11
#log-bin=master-log
relay_log=relay-log
node02# systemctl start mariadb-server
node02# systemctl enable mariadb-server
node02# mysql_secure_installation (初始化数据库)
5、进入node02的数据库，配置salve
[root@node02 ~]# mysql -u root -p
Enter password:
Welcome to the MariaDB monitor. Commands end with ; or \g.
Your MariaDB connection id is 6
Server version: 5.5.60-MariaDB MariaDB Server
Copyright (c) 2000, 2018, Oracle, MariaDB Corporation Ab and others.
Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.
MariaDB [(none)]> CHANGE MASTER TO MASTER_HOST='192.168.85.128',MASTER_USER='repluser',MASTER_PASSWORD='replpass',MASTER_PORT=3306,MASTER_LOG_FILE='master-log.000004',MASTER_LOG_POS=1739;
MariaDB [(none)]> start slave;
MariaDB [(none)]> MariaDB [(none)]> show slave status \G;
*************************** 1. row ***************************
Slave_IO_State: Waiting for master to send event
Master_Host: 192.168.85.128
Master_User: repluser
Master_Port: 3306
Connect_Retry: 60
Master_Log_File: master-log.000004
Read_Master_Log_Pos: 245
Relay_Log_File: relay-log.000005
Relay_Log_Pos: 530
Relay_Master_Log_File: master-log.000004
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: 245
Relay_Log_Space: 1103
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)
6、验证
node01主机
MariaDB [(none)]> show databases;
+--------------------+
| Database |
+--------------------+
| information_schema |
| hellodb |
| mydb |
| mysql |
| performance_schema |
+--------------------+
5 rows in set (0.05 sec)
node02主机
MariaDB [(none)]> show databases;
+--------------------+
| Database |
+--------------------+
| information_schema |
| hellodb |
| mydb |
| mysql |
| performance_schema |
+--------------------+
5 rows in set (0.03 sec)
node01主机
MariaDB [(none)]> create database test;
Query OK, 1 row affected (0.00 sec)
MariaDB [(none)]> show databases;
+--------------------+
| Database |
+--------------------+
| information_schema |
| hellodb |
| mydb |
| mysql |
| performance_schema |
| test |
+--------------------+
6 rows in set (0.00 sec)
node02主机
MariaDB [(none)]> show databases;
+--------------------+
| Database |
+--------------------+
| information_schema |
| hellodb |
| mydb |
| mysql |
| performance_schema |
| test |
+--------------------+
6 rows in set (0.00 sec)
到此，mysql主从复制配置完成。
