查看主库配置文件
[mysql@node1 mysql1]$ cat /mysql1/mysql1.cnf
[client]
port = 3306
socket = /tmp/mysql1.sock
[mysqld]
port = 3306
socket = /tmp/mysql1.sock
#skip-grant-tables
basedir = /usr/local/mysql
datadir = /mysql1/data
pid-file = /mysql1/mysql1.pid
log-error = /mysql1/mysql1.log
log-bin=/mysql1/data/mysql-bin
server_id = 1
创建复制用账户
mysql> GRANT ALL PRIVILEGES ON *.* TO 'dao'@'192.168.2.52' IDENTIFIED BY 'dao' ;
Query OK, 0 rows affected, 1 warning (0.01 sec)
mysql> flush privileges;
Query OK, 0 rows affected (0.01 sec)
对从库进行初始化
[mysql@node2 ~]$ mysqld --defaults-file=/mysql1/mysql1.cnf --initialize-insecure
查看从库配置文件
[mysql@node2 ~]$ cat /mysql1/mysql1.cnf
[client]
port = 3306
socket = /tmp/mysql1.sock
[mysqld]
port = 3306
socket = /tmp/mysql1.sock
#skip-grant-tables
basedir = /usr/local/mysql
datadir = /mysql1/data
pid-file = /mysql1/mysql1.pid
log-error = /mysql1/mysql1.log
log-bin=/mysql1/data/mysql-bin
server_id = 2
启动从库并修改密码
[mysql@node2 ~]$ mysqld --defaults-file=/mysql1/mysql1.cnf &
[1] 3108
[mysql@node2 ~]$ mysql -S /tmp/mysql1.sock -uroot
Welcome to the MySQL monitor. Commands end with ; or \g.
Your MySQL connection id is 2
Server version: 5.7.21-log MySQL Community Server (GPL)
Copyright (c) 2000, 2018, Oracle and/or its affiliates. All rights reserved.
Oracle is a registered trademark of Oracle Corporation and/or its
affiliates. Other names may be trademarks of their respective
owners.
Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.
mysql> alter user root@'localhost' identified by 'root' ;
Query OK, 0 rows affected (0.02 sec)
复制
[root@node1 ~]# scp /home/mysql/slavedata.sql 192.168.2.52:/home/mysql/
The authenticity of host '192.168.2.52 (192.168.2.52)' can't be established.
RSA key fingerprint is bb:87:21:f9:01:9e:c2:de:9c:f8:d9:c7:20:8e:d9:07.
Are you sure you want to continue connecting (yes/no)? yes
Warning: Permanently added '192.168.2.52' (RSA) to the list of known hosts.
root@192.168.2.52's password:
导入从库
[mysql@node2 ~]$ mysql -S /tmp/mysql1.sock -uroot -proot
mysql: [Warning] Using a password on the command line interface can be insecure.
Welcome to the MySQL monitor. Commands end with ; or \g.
Your MySQL connection id is 2
Server version: 5.7.21-log MySQL Community Server (GPL)
Copyright (c) 2000, 2018, Oracle and/or its affiliates. All rights reserved.
Oracle is a registered trademark of Oracle Corporation and/or its
affiliates. Other names may be trademarks of their respective
owners.
Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.
mysql> source /home/mysql/slavedata.sql
开启同步
mysql> change master to master_host='192.168.2.51',master_user='dao',master_password='dao',
-> master_log_file='mysql-bin.000002',master_log_pos=989;
Query OK, 0 rows affected, 2 warnings (0.03 sec)
mysql> start slave ;
Query OK, 0 rows affected (0.00 sec)
查看同步状态
mysql> show slave status \G ;
*************************** 1. row ***************************
Slave_IO_State: Waiting for master to send event
Master_Host: 192.168.2.51
Master_User: dao
Master_Port: 3306
Connect_Retry: 60
Master_Log_File: mysql-bin.000002
Read_Master_Log_Pos: 1431
Relay_Log_File: node2-relay-bin.000002
Relay_Log_Pos: 762
Relay_Master_Log_File: mysql-bin.000002
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: 1431
Relay_Log_Space: 969
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
Master_UUID: 887aefe8-955a-11e8-94c9-000c2990d773
Master_Info_File: /mysql1/data/master.info
SQL_Delay: 0
SQL_Remaining_Delay: NULL
Slave_SQL_Running_State: Slave 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:
1 row in set (0.00 sec)