Here’s an interesting one, what if you have a MySQL replication setup and the slave stops replicating with a syntax error? The slave should be executing the exact same commands as the master, right? Well, as it turns out, yes and no. There is a bug in MySQL that has been fixed in 5.0.56 according to the bug report. It’s a long story and it’s worth the read but what happens is that a timeout in the network connection between the master and the slave can cause the master to resend part of packet that… Read the rest