A network outage between the systems can sometimes break the synchronization between the databases. GoldenGate replication is quite good in recovering from short outages. However, if the outage is long and the amount of change caused in the source database is high, there can be instances where the GoldenGate replication cannot recover itself, and the administrator will need to re-instantiate the target environment. In this recipe, we will look into the steps that you can follow to re-sync a GoldenGate configuration when there is a network outage or some issue with the target database/system.
For this recipe we will refer to the setup done in the Setting up a simple GoldenGate replication configuration between two single node databases recipe in Chapter 2, Setting up GoldenGate Replication. The scenario demonstrated in this recipe is a broken replication due to a long network outage. The trail file area on the source system...