Examples of MySQL Database Synchronization

Today, we will share with you an example of MySQL Database Synchronization. The main purpose of this experiment is to configure master-slave synchronization for MySQL (the best combination with PHP) databases, the following is a description of the specific operation content. I hope it will be helpful for your future study.

In this test, MySQL (the best combination with PHP) versions are 4.1.7-standard-log, the master operating system is redhat 9.0, And the slave operating system is redhat 7.3.

1. modify my. cnf on the master end and add the configuration parameters:

[MySQL (the best combination with PHP) d]

 
 

  
  
log-bin  
  
  
server-id=1 
 
 

2. modify my. cnf on the slave side and add the configuration parameters:

 
 

  
  
log-bin  
  
  
mastermaster-host=master  
  
  
master-user=rep 
  
  
master-password=rep 
  
  
master-port=3306 
  
  
server-id=2 
 
 

The above parameters are the most basic configuration, so I will not explain them much. I will undo it to initialize the data.

1. Clear all binlogs on the master. If the existing binlogs are useful, back up them first. Then, pack all data files on the master, including ibdata files.

2. A similar method is used to clear all binlogs on the slave and copy the data file compressed package on the master to its own data file directory.

Start master and add a rep user, "grant all privileges on *. * to rep @ % identified by 'rep '; flush privileges ;".

Start slave and check whether the synchronization is successful.

In the example of MySQL database synchronization, the failure is generally caused by the failure of locating the binlog after the slave connects to the master node. In this case, both binlogs must be set to the same, then stop slave; start slave.

The above content is the description of the MySQL Database Synchronization instance, hoping to help you in this regard.