Mysql Kill A Query -

KILL QUERY 19283; A second later, MySQL responded:

“API latency > 5 seconds. 500 errors spike.” mysql kill a query

SHOW PROCESSLIST; The output flooded her screen. Dozens of connections. Most were sleeping. But one caught her eye: KILL QUERY 19283; A second later, MySQL responded:

It was 2:13 AM on a Tuesday. Maya, the only on-call database engineer, jolted awake by a relentless buzz from her phone. Most were sleeping

Query OK, 0 rows affected (0.00 sec) She ran SHOW PROCESSLIST again. The row with Id 19283 was gone — replaced by a single line: KILLED (for a brief moment, then disappeared).

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:

| Id | User | Host | db | Command | Time | State | Info | |----|------|------|----|---------|------|-------|------| | 19283 | app_user | 10.2.3.4:54321 | shop | Query | 347 | Sending data | SELECT * FROM orders o JOIN order_items oi ON o.id = oi.order_id JOIN products p ON oi.product_id = p.id WHERE o.created_at > '2023-01-01' AND p.tags LIKE '%summer%' |