MySQL 8.0 Release Notes
MySQL 8.0 Source Code Documentation
This section discusses statements for managing replication source servers. Section 13.4.2, “SQL Statements for Controlling Replica Servers”, discusses statements for managing replica servers.
In addition to the statements described here, the following
SHOW statements are used with
source servers in replication. For information about these
statements, see Section 13.7.7, “SHOW Statements”.
SHOW REPLICAS(or before MySQL 8.0.22,SHOW SLAVE HOSTS)