搭建mysql服务器，并实现主主复制(互为主从)
1、环境配置
| 主机名 | IP | 角色 | |
|---|---|---|---|
| node01 | 192.168.85.128 | mysql-master | |
| node02 | 192.168.85.129 | mysql-master |
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
relay_log=relay-log
auto_increment_offset=1
auto_increment_increment=2
node01# systemctl start mariadb-server
node01# systemctl enable mariadb-server
node01# mysql_secure_installation (初始化数据库)
4、node01mysql数据库配置复制用户权限
[root@node01 ~]# mysql -u root -p
Enter password:
ERROR 1045 (28000): Access denied for user 'root'@'localhost' (using password: YES)
[root@node01 ~]# mysql
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)]> grant replication client,replication slave on *.* to 'repluser'@'192.168.85.%' identified by 'replpass';
MariaDB [(none)]> show master status ;
+-------------------+----------+--------------+------------------+
| File | Position | Binlog_Do_DB | Binlog_Ignore_DB |
+-------------------+----------+--------------+------------------+
| master-log.000004 | 245 | | |
+-------------------+----------+--------------+------------------+
1 row in set (0.00 sec)
5、node02修改配置文件，启动服务
node02# vim /etc/my.cnf.d/server.cnf
innodb_file_per_table=ON
skip_name_resolve=ON
server_id=7
log-bin=master-log
relay_log=relay-log
auto_increment_offset=2
auto_increment_increment=2
node02# systemctl start mariadb-server
node02# systemctl enable mariadb-server
node02# mysql_secure_installation (初始化数据库)
6、node02mysql数据库配置复制用户权限
[root@node02 ~]# mysql -u root -p
Enter password:
ERROR 1045 (28000): Access denied for user 'root'@'localhost' (using password: YES)
[root@node01 ~]# mysql
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)]> grant replication client,replication slave on *.* to 'repluser'@'192.168.85.%' identified by 'replpass';
MariaDB [(none)]> show master status ;
+-------------------+----------+--------------+------------------+
| File | Position | Binlog_Do_DB | Binlog_Ignore_DB |
+-------------------+----------+--------------+------------------+
| master-log.000004 | 245 | | |
+-------------------+----------+--------------+------------------+
1 row in set (0.00 sec)
7、分别在node01和node02的主机配置
配置node01为node02的从
MariaDB [(none)]> CHANGE MASTER TO MASTER_HOST='192.168.85.129',MASTER_USER='repluser',MASTER_PASSWORD='replpass',MASTER_PORT=3306,MASTER_LOG_FILE='master-log.000004',MASTER_LOG_POS=245;
MariaDB [(none)]> start slave;
MariaDB [(none)]> show slave status \G;
*************************** 1. row ***************************
Slave_IO_State: Waiting for master to send event
Master_Host: 192.168.85.129
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: 7
1 row in set (0.00 sec)
ERROR: No query specified
配置node02为node01的从
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=245;
MariaDB [(none)]> start slave;
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)
ERROR: No query specified
到此，数据库的主主复制就搭建完毕了，验证请自行验证
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