HI, we have many groups master slave , used semi-sync are normal. but there a group master and slave , semi-sync status show have a little question. master: 10.1.0.61 (MariaDB 10.1.22) slave1 : 10.1.0.62 (MariaDB 10.1.22) slave2: 10.1.0.63 (MariaDB 10.1.22) three machine's semi-sync parameter: rpl_semi_sync_master_enabled ON rpl_semi_sync_master_timeout 10000 rpl_semi_sync_master_wait_point AFTER_COMMIT rpl_semi_sync_slave_enabled ON on master: SHOW GLOBAL STATUS LIKE '%semi%' ; *Rpl_semi_sync_master_clients 1 # should show : 2 * ...... on slave1: stop slave io_thread; then on master: SHOW GLOBAL STATUS LIKE '%semi%' ; *Rpl_semi_sync_master_clients ０* on slave1: start slave io_thread; on master: SHOW GLOBAL STATUS LIKE '%semi%' ; *Rpl_semi_sync_master_clients 1* on slave2: stop slave io_thread; then on master: SHOW GLOBAL STATUS LIKE '%semi%' ; *Rpl_semi_sync_master_clients ０* on slave2: start slave io_thread; on master: SHOW GLOBAL STATUS LIKE '%semi%' ; *Rpl_semi_sync_master_clients 1* *on slave1 and slave2 , I had uninstall and reinstall semi-sync plugin, * *still show **Rpl_semi_sync_master_clients is 1* I don't know where config have question? please you help, thanks