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Is there any log or other record in mysql that would show me if someone had issued a sleep() command?

I am examining a system that may have been the victim of a blind SQL injection attack, and I'm wondering if there would be any evidence that an attacker was able to successfully execute a sleep() ...
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239 views

Idle connection plus schema-modifying query causing locked database

As part of our automated deployment process for a web app running on a LAMP stack, we drop all our triggers and stored procedures and recreate them from source control. It turns out there was a hidden ...
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Sleep Processes are Running Longer Than Allowed

From time to time my mysql server will run into a "too many connections" error. I believe part of the problem is large amount of sleep processes that are running, some over 1000 seconds. When ...
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MySQL: many Sleep processes

I've queried SHOW processlist as root after a server restert, and got a long list of Sleep threads: +-----+-------------+-----------------+---------+---------+------+-------+------------------+ | Id ...