MySQL  8.0.16
Source Code Documentation
Shutdown/kill enums and constants

Macros

#define MYSQL_SHUTDOWN_KILLABLE_CONNECT   (unsigned char)(1 << 0)
 
#define MYSQL_SHUTDOWN_KILLABLE_TRANS   (unsigned char)(1 << 1)
 
#define MYSQL_SHUTDOWN_KILLABLE_LOCK_TABLE   (unsigned char)(1 << 2)
 
#define MYSQL_SHUTDOWN_KILLABLE_UPDATE   (unsigned char)(1 << 3)
 

Enumerations

enum  mysql_enum_shutdown_level {
  SHUTDOWN_DEFAULT = 0, SHUTDOWN_WAIT_CONNECTIONS = MYSQL_SHUTDOWN_KILLABLE_CONNECT, SHUTDOWN_WAIT_TRANSACTIONS = MYSQL_SHUTDOWN_KILLABLE_TRANS, SHUTDOWN_WAIT_UPDATES = MYSQL_SHUTDOWN_KILLABLE_UPDATE,
  SHUTDOWN_WAIT_ALL_BUFFERS = (MYSQL_SHUTDOWN_KILLABLE_UPDATE << 1), SHUTDOWN_WAIT_CRITICAL_BUFFERS = (MYSQL_SHUTDOWN_KILLABLE_UPDATE << 1) + 1, KILL_QUERY = 254, KILL_CONNECTION = 255
}
 We want levels to be in growing order of hardness (because we use number comparisons). More...
 

Detailed Description

See also
THD::is_killable

Macro Definition Documentation

◆ MYSQL_SHUTDOWN_KILLABLE_CONNECT

#define MYSQL_SHUTDOWN_KILLABLE_CONNECT   (unsigned char)(1 << 0)

◆ MYSQL_SHUTDOWN_KILLABLE_LOCK_TABLE

#define MYSQL_SHUTDOWN_KILLABLE_LOCK_TABLE   (unsigned char)(1 << 2)

◆ MYSQL_SHUTDOWN_KILLABLE_TRANS

#define MYSQL_SHUTDOWN_KILLABLE_TRANS   (unsigned char)(1 << 1)

◆ MYSQL_SHUTDOWN_KILLABLE_UPDATE

#define MYSQL_SHUTDOWN_KILLABLE_UPDATE   (unsigned char)(1 << 3)

Enumeration Type Documentation

◆ mysql_enum_shutdown_level

We want levels to be in growing order of hardness (because we use number comparisons).

Note
SHUTDOWN_DEFAULT does not respect the growing property, but it's ok.
Enumerator
SHUTDOWN_DEFAULT 
SHUTDOWN_WAIT_CONNECTIONS 

Wait for existing connections to finish.

SHUTDOWN_WAIT_TRANSACTIONS 

Wait for existing transactons to finish.

SHUTDOWN_WAIT_UPDATES 

Wait for existing updates to finish (=> no partial MyISAM update)

SHUTDOWN_WAIT_ALL_BUFFERS 

Flush InnoDB buffers and other storage engines' buffers.

SHUTDOWN_WAIT_CRITICAL_BUFFERS 

Don't flush InnoDB buffers, flush other storage engines' buffers.

KILL_QUERY 

Query level of the KILL command.

KILL_CONNECTION 

Connection level of the KILL command.