Summary
Oracle RAC is one of the most popular database configurations, first introduced in Oracle 9i, superseding Oracle Parallel Server. GoldenGate has recently played a major role in the Oracle 11g Release 2 RAC environment with the advent of Exadata and the Database Machine. In fact both are commonly sold together to provide a robust OLTP and OLAP solution in the same Oracle-Sun equipment rack.
In this chapter, we learnt how to configure GoldenGate on Oracle RAC, leveraging HA through Clusterware configuration techniques, and explored the new shared storage solutions available in Oracle 11g Release 2.
We discovered the importance of automatic relocation and startup of the GoldenGate Manager and processes on the new instance to restore data replication to downstream systems, all in the name of HA.
In the next chapter, we look at configuration in more detail - starting with data mapping and filtering, and finally discussing data transformation and error handling, all of which help to create...