Mysql Kill Process

SELECT * FROM information_schema.PROCESSLIST WHERE TIME > 10 AND COMMAND != 'Sleep' ORDER BY TIME DESC;

Result: Full rollback. Table remains as before BEGIN . No partial update.

Managing a MySQL database often requires clearing hung queries or stuck connections that consume CPU and memory. When your database becomes unresponsive, knowing how to use the "mysql kill process" command effectively can save your application from a total crash. How to Find the Process ID mysql kill process

Sometimes you cannot access the MySQL shell (e.g., too many connections error). You can kill processes from the OS level using the mysqladmin tool.

-- 4. If still present after 2 minutes, consider restart? (rare) -- Check if it's waiting on storage engine SELECT * FROM information_schema

: If the query was part of a transaction (especially with InnoDB ), the server must undo all changes made by that query before the thread truly dies.

: A thread will not be killed immediately if it is stuck inside a system call, waiting for a network read, or inside a long-running storage engine operation that doesn't check for kill flags frequently. Managing a MySQL database often requires clearing hung

Critical Note : If you kill a huge DELETE or UPDATE , it may stay in "Killed" status for a long time while it rolls back.