一主一从
|----------|----------------|----------|
| | IP地址 | 主机名 |
| master节点 | 192.168.10.200 | mysql200 |
| slave节点 | 192.168.10.201 | mysql201 |
master节点操作
bash
配置文件增加两行参数
[root@mysql200 ~]# tail -n 2 /etc/my.cnf.d/mysql-server.cnf
log-bin=/mylog/mysql200
server-id=200
[root@mysql200 ~]# systemctl restart mysqldslave节点操作
bash
增加该配置参数
[root@mysql201 ~]# tail -n 1 /etc/my.cnf.d/mysql-server.cnf
server-id=201
mysql> change master to master_host='192.168.10.200',master_user='repluser',master_password='123456',master_log_file='mysql200.000001',master_log_pos=157;
Query OK, 0 rows affected, 8 warnings (0.01 sec)
mysql> start slave;
Query OK, 0 rows affected, 1 warning (0.01 sec)
mysql> show slave status\G;
*************************** 1. row ***************************
Slave_IO_State: Waiting for source to send event
Master_Host: 192.168.10.200
Master_User: repluser
Master_Port: 3306
Connect_Retry: 60
Master_Log_File: mysql200.000001
Read_Master_Log_Pos: 157
Relay_Log_File: mysql201-relay-bin.000002
Relay_Log_Pos: 325
Relay_Master_Log_File: mysql200.000001
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: 157
Relay_Log_Space: 538
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: 200
Master_UUID: 5e9b61a1-36c5-11f0-b2d4-000c294906b2
Master_Info_File: mysql.slave_master_info
SQL_Delay: 0
SQL_Remaining_Delay: NULL
Slave_SQL_Running_State: Replica has read all relay log; waiting for more updates
Master_Retry_Count: 86400
Master_Bind:
Last_IO_Error_Timestamp:
Last_SQL_Error_Timestamp:
Master_SSL_Crl:
Master_SSL_Crlpath:
Retrieved_Gtid_Set:
Executed_Gtid_Set:
Auto_Position: 0
Replicate_Rewrite_DB:
Channel_Name:
Master_TLS_Version:
Master_public_key_path:
Get_master_public_key: 0
Network_Namespace:
1 row in set, 1 warning (0.00 sec)
ERROR:
No query specified一主多从
|----------|----------------|----------|
| | IP地址 | 主机名 |
| master节点 | 192.168.10.200 | mysql200 |
| slave节点 | 192.168.10.201 | mysql201 |
| slave2节点 | 192.168.10.202 | mysql202 |
master节点操作
bash
将master节点数据导出
[root@mysql200 ~]# mysqldump -A >all.sql
[root@mysql200 ~]# scp all.sql root@192.168.10.202:/root
[root@mysql202 ~]# mysql <all.sql
[root@mysql202 ~]# tail -n 1 /etc/my.cnf.d/mysql-server.cnf
server-id=202
[root@mysql202 ~]# systemctl restart mysqld
[root@mysql202 ~]# mysql
mysql> start slave;
change master to master_host='192.168.10.200',master_user='repluser',master_password='123456',master_log_file='mysql200.000001',master_log_pos=157;
mysql> start slave;
mysql> show slave status\G;
*************************** 1. row ***************************
Slave_IO_State: Waiting for source to send event
Master_Host: 192.168.10.200
Master_User: repluser
Master_Port: 3306
Connect_Retry: 60
Master_Log_File: mysql200.000001
Read_Master_Log_Pos: 157
Relay_Log_File: mysql202-relay-bin.000003
Relay_Log_Pos: 325
Relay_Master_Log_File: mysql200.000001
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: 157
Relay_Log_Space: 718
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: 200
Master_UUID: 5e9b61a1-36c5-11f0-b2d4-000c294906b2
Master_Info_File: mysql.slave_master_info
SQL_Delay: 0
SQL_Remaining_Delay: NULL
Slave_SQL_Running_State: Replica has read all relay log; waiting for more updates
Master_Retry_Count: 86400
Master_Bind:
Last_IO_Error_Timestamp:
Last_SQL_Error_Timestamp:
Master_SSL_Crl:
Master_SSL_Crlpath:
Retrieved_Gtid_Set:
Executed_Gtid_Set:
Auto_Position: 0
Replicate_Rewrite_DB:
Channel_Name:
Master_TLS_Version:
Master_public_key_path:
Get_master_public_key: 0
Network_Namespace:
1 row in set, 1 warning (0.00 sec)
ERROR:
No query specified验证效果
bash
使用150主机当客户端访问
[root@mysql150 ~]# mysql -urepluser -p123456 -h192.168.10.200
mysql> create database gamedb1;
Query OK, 1 row affected (0.00 sec)
mysql> create table gamedb1.test (name char(10));
Query OK, 0 rows affected (0.02 sec)
mysql> insert into gamedb1.test values ('测试');
Query OK, 1 row affected (0.01 sec)
[root@mysql200 ~]# mysql -urepluser -p123456 -e "select * from gamedb1.test"
mysql: [Warning] Using a password on the command line interface can be insecure.
+--------+
| name |
+--------+
| 测试 |
+--------+
[root@mysql201 ~]# mysql -urepluser -p123456 -e "select * from gamedb1.test"
mysql: [Warning] Using a password on the command line interface can be insecure.
+--------+
| name |
+--------+
| 测试 |
+--------+
[root@mysql202 ~]# mysql -urepluser -p123456 -e "select * from gamedb1.test"
mysql: [Warning] Using a password on the command line interface can be insecure.
+--------+
| name |
+--------+
| 测试 |
+--------+
一主二从效果成功