goldengate12.1.2.1.0新特性：支持从ADG的在线日志中捕获变化

OGG Release 12.1.2.1.0  New Features for Oracle Database

 

Active Data Guard (ADG) - A new processing option (TRANLOGOPTIONS MINEFROMACTIVEDG) is introduced allowing you to configure Classic Extract to mine online redo logs shipped to the Oracle Active Data Guard standby system allowing real-time replication directly from ADG hosts. Oracle GoldenGate connects to the standby database to get metadata and other required data as needed. This mode is useful in load sensitive environments where ADG is already in place or can be implemented. It can also be used as cost effective method to implement high availability using the ADG Broker role planned (switchover) and failover (unplanned) changes.

 

只需咋extract中添加：TRANLOGOPTIONS MINEFROMACTIVEDG即可实现对ADG的redo实时抽取了。