Common Replication Administration Tasks User: root Host: replica1:58371 db: NULL Command: Binlog Dump Time: 777 State: Has sent all binlog to slave; waiting for binlog to be updated Info: NULL +-----------+----------+------+-------------------+-----------+ | Server_id | Host | Port | Rpl_recovery_rank | Source_id | +-----------+----------+------+-------------------+-----------+ | 10 | replica1 | 3306 | 0 | 1 | +-----------+----------+------+-------------------+-----------+ mysql>  SHOW REPLICAS; 1 row in set (0.00 sec) Because it is the replica that drives the replication process, very little information is available in this report. For replicas that were started with the  --report-host  option and are connected to the source, the  SHOW REPLICAS | SHOW SLAVE HOSTS  statement on the source shows basic information about the replicas. The output includes the ID of the replica server, the value of the  --report-host  option, the connecting port, and source ID: You can stop and start replication on the replica using the  STOP REPLICA | SLAVE  and  START REPLICA | SLAVE  statements. From MySQL 8.0.22,  STOP SLAVE  and  START SLAVE  are deprecated, and  STOP REPLICA  and  START REPLICA  are available to use instead. When replication is stopped, the replication I/O thread stops reading events from the source binary log and writing them to the relay log, and the SQL thread stops reading events from the relay log and executing them. You can pause the I/O or SQL thread individually by specifying the thread type: To start execution again, use the  START REPLICA | SLAVE  statement: To start a particular thread, specify the thread type: For a replica that performs updates only by processing events from the source, stopping only the SQL thread can be useful if you want to perform a backup or other task. The I/O thread continues to read events from the source but they are not executed. This makes it easier for the replica to catch up when you restart the SQL thread. 17.1.7.2 Pausing Replication on the Replica To stop processing of the binary log from the source, use  STOP REPLICA | SLAVE : mysql>  STOP SLAVE; Or from MySQL 8.0.22: mysql>  STOP REPLICA; mysql>  STOP SLAVE IO_THREAD; mysql>  STOP SLAVE SQL_THREAD; Or from MySQL 8.0.22: mysql>  STOP REPLICA IO_THREAD; mysql>  STOP REPLICA SQL_THREAD; mysql>  START SLAVE; Or from MySQL 8.0.22: mysql>  START REPLICA; mysql>  START SLAVE IO_THREAD; mysql>  START SLAVE SQL_THREAD; Or from MySQL 8.0.22: mysql>  START REPLICA IO_THREAD; mysql>  START REPLICA SQL_THREAD; 3580