1、数据库配置
类型 | 地址 | 名称 | 配置 |
---|---|---|---|
主库 | 192.168.0.104 | master | 双核1.5G |
从库 | 192.168.0.105 | slave | 单核1G |
2、配置主库
2.1、修改my.cnf配置文件,添加一下内容
# 服务的唯一编号
server-id = 1
# 开启mysql binlog功能
log-bin = mysql-bin
# binlog记录内容的方式,记录被操作的每一行
binlog_format = ROW
# 减少记录日志的内容,只记录受影响的列
binlog_row_image = minimal
# 指定需要复制的数据库名为jgyw
binlog-do-db = jgyw
修改完成后,重启mysql服务器
service mysqld restart
2.1、添加从库的访问账号
grant replication slave on *.* to 'jgyw'@'192.168.0.231' identified by 'jgyw@HAHA5273yang.';
flush privileges;
执行完成后,在执行 show master status\G;
返回的信息为:
mysql> show master status\G;
*************************** 1. row ***************************
File: mysql-bin.000001
Position: 601
Binlog_Do_DB: jgyw
Binlog_Ignore_DB:
Executed_Gtid_Set:
1 row in set (0.00 sec)
ERROR:
No query specified
3、配置从库
3.1、配置my.cnf文件
# 服务的唯一编号
server-id = 2
# 开启mysql binlog功能
log-bin = mysql-bin
# binlog记录内容的方式,记录被操作的每一行
binlog_format = ROW
# 减少记录日志的内容,只记录受影响的列
binlog_row_image = minimal
# 指定需要复制的数据库名为jgyw
replicate-do-db = jgyw
修改完成后重启mysql服务 service mysqld restart
3.2、配置同步信息
# 设置主服务器ip,同步账号密码,同步位置
change master to master_host='192.168.0.104',master_user='jgyw',master_password='jgyw@HAHA5273yang.',master_log_file='mysql-bin.000004',master_log_pos=68058;
# 开启同步功能
start slave;
在mysql终端执行 show slave status\G;
返回的配置信息:
mysql> show slave status\G;
*************************** 1. row ***************************
Slave_IO_State: Waiting for master to send event
Master_Host: 192.168.0.104
Master_User: jgyw
Master_Port: 3306
Connect_Retry: 60
Master_Log_File: mysql-bin.000002
Read_Master_Log_Pos: 2213
Relay_Log_File: Knight02-relay-bin.000006
Relay_Log_Pos: 875
Relay_Master_Log_File: mysql-bin.000002
Slave_IO_Running: Yes
Slave_SQL_Running: Yes
Replicate_Do_DB: jgyw
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: 2213
Relay_Log_Space: 1085
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: 4a3b6464-d61d-11ea-bbd1-1e4cd34193d4
Master_Info_File: /var/lib/mysql/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 (0.01 sec)
ERROR:
No query specified
4、错误处理
mysql> stop slave;
Query OK, 0 rows affected (0.04 sec)
mysql> set global sql_slave_skip_counter=1;
Query OK, 0 rows affected (0.00 sec)
mysql> start slave;
Query OK, 0 rows affected (0.02 sec)
Q.E.D.
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