We are getting invalid data when reading from a synchronously replicated hot standby node in a 2-node setup. To better understand the situation, we have created a document that provides an overview. We are hoping that someone might be able to confirm whether or not the setup makes sense, i.e., whether we are using PostgreSQL correctly and experiencing a bug, or if we are using PostgreSQL incorrectly.
If the setup is sane (and expected to work), we will work on setting up a minimal reproduce that avoids our complete system. We are thinking that a scripted Ansible/Vagrant setup makes sense.
