Im facing the following situation:
We have master server replicating 3 tables of one database to 6 slaves. The replication is up and running fine.
But now, we also want to have the data from another 2 tables replicated back to master server from each slave, each one to its own database.
Some considerations:
All databases have the same schema. The tables doesnt affect each other so the consistency of the replication wont be a problem.
The goal is to capture and maintain the generated data by the slaves only on master server and erase it from the slaves (possible setting the replicated tables engines to blackhole).
I've read about daisy chain replication, with slaves acting as masters, but I cant find anything about a master acting as slave.