We are facing an intermitant problem with MySQL and SQLYog software causing too many sleep queries. We are working on solving this. It is not effecting functionality but causes some sites to stop working temporarily.
Update:
There is a minor bug with SQLYog 6.6 which causes too many connection error when the program crashes. We suggest people using SQLYog to download the latest version SQLYog 7.1 which doesn't give any problem.

