Comments - Start replication with clones?
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Yes, shutting down and cloning the system will work, and this is a very robust method if you are able to shutdown the server briefly.
You need to set a different server_id in the configuration file of the clone.
You also need to configure the new slave to start replicating from the right point. Using GTID, you can do
CHANGE MASTER TO master_use_gtid=slave_pos, master_demote_to_slave=1, master_host=...(Or master_use_gtid=current_pos if you are before MariaDB 10.10).
Otherwise SHOW MASTER STATUS will show the binlog coordinates to start the slave at.