Mysql Kill A Query ((install)) Jun 2026

KILL QUERY 5;

And for emergencies when even the connection is stuck:

SELECT CONCAT('KILL QUERY ', id, ';') FROM information_schema.processlist WHERE user = 'problem_user'; Use code with caution. Copied to clipboard

The next morning, Maya added a monitoring alert for queries running longer than 60 seconds. She also taught the dev team how to catch themselves: mysql kill a query

: Indicates how long (in seconds) the query has been running.

KILL <connection_id>; -- kills the entire connection, not just the query

Almost six minutes. That single query was hogging the CPU, locking critical rows, and starving the checkout service. KILL QUERY 5; And for emergencies when even

The most common way to see what is currently running is the SHOW PROCESSLIST command. SHOW FULL PROCESSLIST; Use code with caution. : The unique identifier for the connection (Thread ID). Time : How long the query has been running in seconds.

If you receive an error like Access denied; you need (at least one of) the PROCESS or SUPER privilege(s) for this operation :

She SSH’d into the production database server and ran the usual triage: SHOW FULL PROCESSLIST; Use code with caution

SHOW FULL PROCESSLIST;

She quickly checked the execution plan (EXPLAIN) — sure enough, no index on created_at and a full table scan on products with a wildcard LIKE . A perfect storm.