Currently I have two Linux servers running MySQL, one sitting on a rack right next to me under a 10 Mbit/s upload pipe (main server) and another some couple of miles away on
I have never seen dropped statements but there is a bug where network problems could cause relay log corruption. Make sure you dont run mysql without this fix.
Documented in the 5.0.56, 5.1.24, and 6.0.5 changelogs as follows:
Network timeouts between the master and the slave could result in corruption of the relay log.
http://bugs.mysql.com/bug.php?id=26489