I have a replicated database on 2008 R2 being moved to a new instance with 2014. Application regression testing is complete and all tests are good. The current transactional replication topology is Publishing subscriber: the distributor is local and pushes to a subscription on an intermediary server. This server then has an identical publication and local distributor which then pushes to a subscription on a customer's server. There's no business case for this setup, it's just how it was created at the time.I want to change this to a Central Distributor model when we do the move to speed things up and remove any extra potential points of failure. The customer has a requirement that during this process, their subscription database remain online, all tables are fully populated and replication pick up exactly where it was left off. This is a completely new scenario for me and I was hoping to just be able to rebuild the subscription from scratch. Is there a way to do this move and topology change and meet the customer's requirement? Thanks for any input.
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