slave stop;
drop table if exists t1,t2,t3,t4,t5,t6,t7,t8,t9;
reset master;
reset slave;
drop table if exists t1,t2,t3,t4,t5,t6,t7,t8,t9;
slave start;
select get_lock("a",5);
get_lock("a",5)
1
create table t1(n int);
insert into t1 values(1+get_lock("a",10)*0);
insert into t1 values(2);
stop slave;
select * from t1;
n
1
show slave status;
Master_Host	Master_User	Master_Port	Connect_retry	Master_Log_File	Read_Master_Log_Pos	Relay_Log_File	Relay_Log_Pos	Relay_Master_Log_File	Slave_IO_Running	Slave_SQL_Running	Replicate_do_db	Replicate_ignore_db	Last_errno	Last_error	Skip_counter	Exec_master_log_pos	Relay_log_space
127.0.0.1	root	9306	1	master-bin.001	273	slave-relay-bin.002	255	master-bin.001	No	No			0		0	214	314
change master to master_user='root';
show slave status;
Master_Host	Master_User	Master_Port	Connect_retry	Master_Log_File	Read_Master_Log_Pos	Relay_Log_File	Relay_Log_Pos	Relay_Master_Log_File	Slave_IO_Running	Slave_SQL_Running	Replicate_do_db	Replicate_ignore_db	Last_errno	Last_error	Skip_counter	Exec_master_log_pos	Relay_log_space
127.0.0.1	root	9306	1	master-bin.001	214	slave-relay-bin.001	4	master-bin.001	No	No			0		0	214	4
select release_lock("a");
release_lock("a")
1
start slave;
select * from t1;
n
1
2
drop table t1;