I've set up a MySQL replication scheme between 2 remote databases. I've realized that if I change data on the slave DB, the changed data does not get updated again.
For example, I have a table User and I create a new user Joe on the Master DB. Joe is replicated on the slave DB. But if I delete Joe on Slave DB later, the Joe on the Master is not copied back to the slave again.
Why is this happening? Is there a way to stop this?