STOP {SLAVE | REPLICA} [thread_types] [channel_option]

thread_types:
    [thread_type [, thread_type] ... ]

thread_type: IO_THREAD | SQL_THREAD

channel_option:
    FOR CHANNEL channel

Stops the replication threads. From MySQL 8.0.22, STOP SLAVE is deprecated and the alias STOP REPLICA should be used instead. The statement works in the same way as before, only the terminology used for the statement and its output has changed. Both versions of the statement update the same status variables when used. Please see the documentation for STOP REPLICA for a description of the statement.