I have setup a basic replication for two database, source 9iR2 and target 11gR2 (same platform), the goal is to perform a zero downtime migration.
I have started from very basic configuration just to see how this works, one extract, one data pump and one replicat but I have observed some lagging problem so I think I might need to have more data pumps and more replicats.
How can I reconfigure current configuration to a multiple replicat and data pump configuration without neededing to reinstantiate the target database? I have looked into support note How to Merge Two Extract And Two Replicate Group To One Each, from one source DB to a target DB (Doc ID 1518039.1) but I need to do the reverse.
Good example in the Apress book. Basically, stop extract, let pump and replicat finish the current stream, then split data pump and replicat as needed. Figure out where to start each pump and replicat with respect to the CSN.