Lock-table query

show innodbstatus\G;

show variables like '%timeout%';

show status like '%lock%';

show status like 'Table%';

Table_locks_immediate refers to the number of immediate access to table-level locking

Table_locks_waited refers to the number of table-level lock can not be obtained immediately but to wait

 

The current state of the lock table

show OPEN TABLES where In_use > 0;

Lookup table is locked process

show processlist;

View things are locks:

SELECT * FROM INFORMATION_SCHEMA.INNODB_LOCKS;

Waiting for the lock to view things:

SELECT * FROM INFORMATION_SCHEMA.INNODB_LOCK_WAITS;

All currently running transactions:

SELECT * FROM INFORMATION_SCHEMA.INNODB_TRX;

 

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Origin www.cnblogs.com/wanhua-wu/p/11207139.html