Active-Active Replication Using Open Source tools
Active-Active replication, Change data capture, Partial replication, Upgrade major versions of PostgreSQL, Migrate from <insert proprietary database> to PostgreSQL, Platform independent.
What if you could do all of these with one OpenSource tool?
Symmetric-ds has all of the above capabilities and a few more.
I'll go through how to setup Symmetric-ds to do Active-Active replication with two instances of PostgreSQL