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KILL [TIDB] | TiDB SQL Statement Reference
An overview of the usage of KILL [TIDB] for the TiDB database.
/docs/dev/sql-statements/sql-statement-kill/
/docs/dev/reference/sql/statements/kill/

KILL [TIDB]

The statement KILL TIDB is used to terminate connections in TiDB.

Synopsis

KillStmt ::= KillOrKillTiDB ( 'CONNECTION' | 'QUERY' )? NUM

KillOrKillTiDB ::= 'KILL' 'TIDB'?

Examples

mysql> SHOW PROCESSLIST;
+------+------+-----------+------+---------+------+-------+------------------+
| Id   | User | Host      | db   | Command | Time | State | Info             |
+------+------+-----------+------+---------+------+-------+------------------+
|    1 | root | 127.0.0.1 | test | Query   |    0 | 2     | SHOW PROCESSLIST |
|    2 | root | 127.0.0.1 |      | Sleep   |    4 | 2     |                  |
+------+------+-----------+------+---------+------+-------+------------------+
2 rows in set (0.00 sec)

KILL TIDB 2;
Query OK, 0 rows affected (0.00 sec)

MySQL compatibility

  • By design, this statement is not compatible with MySQL by default. This helps prevent against a case of a connection being terminated on the wrong TiDB server, because it is common to place multiple TiDB servers behind a load balancer.
  • The KILL TIDB statement is a TiDB extension. If you are certain that the session you are attempting to kill is on the same TiDB server, set compatible-kill-query = true in your configuration file.

See also