mysql主从复制--一主一从
1、启动实例3306和33072、检查主库配置
# egrep"log-bin|server|sock"my.cnf
socket = /data/3306/mysql.sock
socket= /application/mysql-5.5.32/tmp/mysql.sock
#socket= /data/3306/mysql.sock
log-bin = /data/3306/mysql-bin
server-id = 1
查看配置是否生效
# mysql-S/application/mysql-5.5.32/tmp/mysql.sock-e"show variables like'log_bin'"
+---------------+-------+
| Variable_name | Value |
+---------------+-------+
| log_bin | ON |
+---------------+-------+
3、检查从库配置
# egrep"log-bin|server|sock"my.cnf
socket = /data/3306/mysql.sock
socket= /application/mysql-5.5.32/tmp/mysql.sock
#socket= /data/3306/mysql.sock
log-bin = /data/3306/mysql-bin
server-id = 1
4、主库配置
mysql>grantreplicationslaveon*.* to'rep'@'%'> mysql>flushprivileges
mysql>flushtablewith readlock
mysql> showmaster status;
mysqldump -S/application/mysql-5.5.32/tmp/mysql.sock -A-B--events --master-data=2 > /tmp/rep1.sql
mysql>unlocktables
5、恢复从库
mysql-S/data/3307/mysql.sock < /tmp/rep1.sql
cat |mysql-S /data/3307/mysql.sockstart slave;
mysql> showslavestatus \G;
*************************** 1. row ***************************
Slave_IO_State: Waiting for master to send event
Master_Host: 192.168.12.200
Master_User: rep
Master_Port: 3306
Connect_Retry: 60
Master_Log_File: mysql-bin.000016
Read_Master_Log_Pos: 421
>
>
> Slave_IO_Running: Yes
Slave_SQL_Running: Yes
Replicate_Do_DB:
Replicate_Ignore_DB: mysql
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: 421
> 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
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