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The server will be added to the list of servers only temporarily. Next you need to click the Modify Cluster button. This will bring up a new dialog window where you can start the replication cluster modification process and monitor the status of the operation. Click the Execute Changes button to start the cluster setup operation.


     

Once Click the Execute Changes button to start the process. Once started, the servers will first be checked to make sure if DualShield is not running and MySQL is. If not, you will be alerted.


One of the common errors is that the DualShield server is still running:

     

Some times, you may encounter the error below:

Authentication to host '127.0.0.1' for user 'root' using method 'mysql_native_password' failed with message: Access denied for user 'root'@'localhost' 

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This is cause by a glitch in the software. To work around it, login to the computer it refers to, e.g. 192.168.20.63 in the above example, run DualShield Assistant, and go to Replication -  Monitoring Settings

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Enter the username and password of the MySQL root account, click Test Connection  and Save. (Test Connection may not showing any result on the screen).

Then, go back to the primary server machine and try to Exceute Changes again.


If the server check is successful, the replication operation will continue on and you can monitor the current progress in the Replication Cluster Setup dialog. MySQL needs to be restarted a few times during the procedure and the entire process can take anywhere from 1-5 minutes depending on the performance of the servers.

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