include/master-slave.inc [connection master] CREATE TABLE t1 (a INT) ENGINE=MyISAM; INSTALL PLUGIN rpl_semi_sync_master SONAME 'semisync_master'; SET GLOBAL rpl_semi_sync_master_enabled = ON; SET DEBUG_SYNC = "rpl_semisync_master_commit_trx_before_lock SIGNAL m1_ready WAIT_FOR m1_cont"; INSERT INTO t1 SELECT * FROM t1; SET DEBUG_SYNC= "now WAIT_FOR m1_ready"; SET GLOBAL rpl_semi_sync_master_enabled = OFF; SET DEBUG_SYNC= "now SIGNAL m1_cont"; DROP TABLE t1; SET DEBUG_SYNC= "RESET"; UNINSTALL PLUGIN rpl_semi_sync_master; include/rpl_end.inc