NoSQL vs MySQL
No I did NOT post the following comment
This is ridiculous. You didn't test MySQL, you tested a failing DNS lookup on authentication.
resulting in the follow up post :
My previous post Redis, Memcache, Tokyp Tyrant, MySQL comparison had a flaw as pointed out by this comment. The MySQL was taking a huge time for doing a reverse DNS lookup.
But as always ... Everything is just a Freaking dns problem :)