Mysql table lock handle

 

- Check the tables are being locked 
Show the OPEN TABLES the WHERE IN_USE >  0 ;

- view the process ID 
show processlist;

- kill the process 
the kill  123456 ;

- table level lock frequency 
Show Status like  ' the Table% ' ;
 + - -------------------------- + ------ + --- 
| variable_name               | Value    | 
+ - -------------------------- + --------- + 
| Table_locks_immediate       |  7295843  |  - refers to the number of immediate access to table-level locking 
| Table_locks_waited          |  362      |  - refers to the number of table-level lock can not be obtained immediately but to wait 
| Table_open_cache_hits       |  0        | 
| Table_open_cache_misses    | 0       |
| Table_open_cache_overflows | 0       |
+----------------------------+---------+