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Creating a User for Replication

Each slave must connect to the master using a MySQL user name and password, so there must be

a user account on the master that the slave can use to connect. Any account can be used for this

operation, providing it has been granted the REPLICATION SLAVE [775] privilege. You may wish to

create a different account for each slave, or connect to the master using the same

account for each

slave.

You need not create an account specifically for replication. However, you should be aware that

the user name and passwDrd are stored in plain text in the master info repository file or table (see

Section 16.2.2.2, “Slave Status Logs"). Therefore, you may want to create a separate account that has

privileges only for the replication process, to minimize the possibility of compromise to other accounts.

To create a new account, use CREATE USER. To grant this account the prh/ileges reąuired for

replication, use the GRANT statement. If you create an account solely for the purposes of replication,

that account needs only the REPLICATION SLAVE [775] privilege. For example, to set up a new user,

repl, that can connect for replication from any host within the mydomain.com domain, issue these statements on the master:

mysql>CREATE USER ¹repl'Q.mydomain.com' IDENTIFIED BY ’slavepass'; mysql>GRANT REPLICATION SLAVE ON *.* TO ’repl*Q’%.mydomain.com¹ ;

See Section 13.7.1, “Account Management Statements", for morę information on statements for

manipulation of useraccounts.