Mysql主从配置
实验场景（mysql的安装在此不赘述）：
Master:192.168.189.145:3307；
Slave:192.168.189.146:3307；
mysql版本需一致。
Master配置：
配置mysql主配置文件：
#vi /etc/my.cnf
[mysqld]
server_id = 1
log_bin = /mydata/mysql-bin.log
log_bin_index = /mydata/mysql-bin.log.index
relay_log = /mydata/mysql-relay-bin
relay_log_index = /mydata/mysql-relay-bin.index
expire_logs_days = 10
max_binlog_size = 100M
log_slave_updates = 1
auto_increment_increment = 2
auto_increment_offset = 1
max_connections=1500
lower_case_table_names = 1
port = 3307
sql_mode=NO_ENGINE_SUBSTITUTION,STRICT_TRANS_TABLES
mysql配置：
#/usr/local/mysql/bin/mysql
建立复制所要使用的用户；
mysql>grant replication slave on *.* to replication@192.168.1.146 identified by ‘123456’; 重启查看mysql，查看master binlog文件；
mysql>show master status\G
File: mysql-bin.000002
Position: 1080
Binlog_Do_DB:
Binlog_Ignore_DB:
Executed_Gtid_Set:
Slave配置：
配置mysql主配置文件：
#vi /etc/my.cnf
[mysqld]
server_id = 2
log_bin = /mydata/mysql-bin.log
log_bin_index = /mydata/mysql-bin.log.index
relay_log = /mydata/mysql-relay-bin
relay_log_index = /mydata/mysql-relay-bin.index
expire_logs_days = 10
max_binlog_size = 100M
log_slave_updates = 1
auto_increment_increment = 2
auto_increment_offset = 1
max_connections=1500
lower_case_table_names = 1
port = 3307
sql_mode=NO_ENGINE_SUBSTITUTION,STRICT_TRANS_TABLES
mysql配置：
mysql>change master to master_host='192.168.189.145',
>master_user='replication',
>master_password='123456',
>master_log_file='mysql-bin.000002',
>master_log_pos=1080,
>master_port=3307; -------假如master端口不是3306
mysql>start slave; -----开启备份
查看主从状态：
mysql> show slave status\G
Slave_IO_State: Waiting for master to send event
Master_Host: 192.168.189.145
Master_User: replication
Master_Port: 3307
Connect_Retry: 60
Master_Log_File: mysql-bin.000002 ----与master一致
Read_Master_Log_Pos: 1080
Relay_Log_File: mysql-relay-bin.000002
Relay_Log_Pos: 1243
Relay_Master_Log_File: mysql-bin.000002
Slave_IO_Running: Yes -----说明同步正常
Slave_SQL_Running: Yes -----说明同步正常
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: 1080
Relay_Log_Space: 1416
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: 381465c0-6a51-11e4-bd77-000c29c83728
Master_Info_File: /mydata/master.info
SQL_Delay: 0
SQL_Remaining_Delay: NULL
Slave_SQL_Running_State: Slave has read all relay log; waiting for the slave I/O thread to update it
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
这时就可以操作master库，看slave是否同步。
