---

{ “title”: “KILL CONNECTION”, “language”: “en”, “description”: “Kill a connection with a specified connection ID. This will also kill the query associated with this connection.” }

Description

Kill a connection with a specified connection ID. This will also kill the query associated with this connection.

Syntax

KILL [ CONNECTION ] <connection_id>

Required Parameters

<connection_id>

The ID of the connection. It can be queried through the SHOW PROCESSLIST statement.

Access Control Requirements

The user executing this SQL command must be the user who owns the connection or have at least ADMIN_PRIV permission.

Examples

Query connection_id:

show processlist;

Result:

+------------------+----+------+-----------------+---------------------+----------+------+---------+------+-------+-----------------------------------+------------------+--------------+--------------+
| CurrentConnected | Id | User | Host            | LoginTime           | Catalog  | Db   | Command | Time | State | QueryId                           | Info             | FE           | CloudCluster |
+------------------+----+------+-----------------+---------------------+----------+------+---------+------+-------+-----------------------------------+------------------+--------------+--------------+
| Yes              | 16 | root | 127.0.0.1:63746 | 2024-11-04 20:18:07 | internal | test | Query   | 0    | OK    | e4d69a1cce81468d-91c9ae32b17540e9 | show processlist | 172.16.123.1 | NULL         |
+------------------+----+------+-----------------+---------------------+----------+------+---------+------+-------+-----------------------------------+------------------+--------------+--------------+

Send KILL command:

KILL CONNECTION 16;