RESET SLAVE statement can be used to
reset a multi-source replication slave. By default, if you use
RESET SLAVE statement on a multi-source
replication slave all channels are reset. Optionally, use the
clause to reset
only a specific channel.
To reset all currently configured replication channels:
To reset only a named channel, use a
RESET SLAVE FOR CHANNEL channel;
See RESET SLAVE Syntax for more information.