23.5.9: Do triggers work with replication? Triggers and replication in MySQL 5.0 work in the same way as in most other database systems: Actions carried out through triggers on a master are not replicated to a slave server. Instead, triggers that exist on tables that reside on a MySQL master server need to be created on the corresponding tables on any MySQL slave servers so that the triggers activate on the slaves as well as the master.
For more information, see Section 16.4.1.25, “Replication and Triggers”.