Information Schema INNODB_LOCK_WAITS Table
The Information Schema INNODB_LOCK_WAITS
table contains information about blocked InnoDB transactions. The PROCESS
privilege is required to view the table.
It contains the following columns:
Column | Description |
---|---|
REQUESTING_TRX_ID | Requesting transaction ID from the INNODB_TRX table. |
REQUESTED_LOCK_ID | Lock ID from the INNODB.LOCKS table for the waiting transaction. |
BLOCKING_TRX_ID | Blocking transaction ID from the INNODB_TRX table. |
BLOCKING_LOCK_ID | Lock ID from the INNODB.LOCKS table of a lock held by a transaction that is blocking another transaction. |
The table is often used in conjunction with the INNODB_LOCKS and INNODB_TRX tables to diagnose problematic locks and transactions.
Comments
Comments loading...
Content reproduced on this site is the property of its respective owners,
and this content is not reviewed in advance by MariaDB. The views, information and opinions
expressed by this content do not necessarily represent those of MariaDB or any other party.