Thanks for testing. I have honestly no idea. Looking at google, it seems to be a misconfiguration or similar.
Like:
http://stackoverflow.com/questions/5...n-packet-syste
All I can say is to make sure you have properly configured your mysql server infos.
Also did you set a timeout feature, and rw_timeout? Maybe it could help to play with it, because by default it's set to 0, so it's supposed to be a default undefined value, but it won't hurt to define one.
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