Hello, Helen!
OpenGauss is a distributed database that supports intra-city multi-AZ multi-active, remote cross-region DR, and DR RPO.
If the value is not 0, the RTO is minute-level.
The remote network (more than 1000 km) has high latency. To support cross-region active-active and ensure that the RPO is 0.
Data synchronization or cross-region access overheads are high and database performance is low. Cross-region active-active is not supported currently.
Hope this helps!