The Clone Plugin If necessary, you can stop a cloning operation with a  KILL QUERY  processlist_id  statement. On the recipient MySQL server instance, you can retrieve the processlist identifier (PID) for a cloning operation from the  PID  column of the  clone_status  table. You can also retrieve the processlist identifier from the  ID  column of the  INFORMATION_SCHEMA PROCESSLIST  table, the  Id  column of  SHOW PROCESSLIST  output, or the  PROCESSLIST_ID  column of the Performance Schema  threads  table. These methods of obtaining the PID information can be used on the donor or recipient MySQL server instance. This section describes the system variables that control operation of the clone plugin. If values specified at startup are incorrect, the clone plugin may fail to initialize properly and the server does not load it. In this case, the server may also produce error messages for other clone settings because it does not recognize them. Each system variable has a default value. System variables can be set at server startup using options on the command line or in an option file. They can be changed dynamically at runtime using the  SET statement, which enables you to modify operation of the server without having to stop and restart it. 1128 5.6.7.12 Clone System Variables 5.6.7.11 Clone System Variable Reference mysql> SELECT * FROM performance_schema.clone_status\G *************************** 1. row *************************** ID: 1 PID: 8 STATE: In Progress BEGIN_TIME: 2019-07-15 11:58:36.767 END_TIME: NULL SOURCE: LOCAL INSTANCE DESTINATION: / path/to/clone_dir / ERROR_NO: 0 ERROR_MESSAGE: BINLOG_FILE: BINLOG_POSITION: 0 GTID_EXECUTED: Table 5.6 Clone System Variable Reference Name Cmd-Line Option File System Var Status Var Var Scope Dynamic clone_autotune_concurrency Yes Yes Yes Global Yes clone_buffer_size Yes Yes Yes Global Yes clone_ddl_timeout Yes Yes Yes Global Yes clone_donor_timeout_after_network_failure Yes Yes Yes Global Yes clone_enable_compression Yes Yes Yes Global Yes clone_max_concurrency Yes Yes Yes Global Yes clone_max_data_bandwidth Yes Yes Yes Global Yes clone_max_network_bandwidth Yes Yes Yes Global Yes clone_ssl_ca Yes Yes Yes Global Yes clone_ssl_cert Yes Yes Yes Global Yes clone_ssl_key Yes Yes Yes Global Yes clone_valid_donor_list Yes Yes Yes Global Yes