I am configuring a high availability environment with Debian 9.4 machine, in which I have a Heartbeat working and need to include native PostgreSQL 9.6 replication, but by default this method of replication is unidirectional, ie it is just a streaming from the database from the Master cluster to the Slave, without it being able to edit the database.
I would like to know if there is any software or some specific configuration that allows me to perform this replication in a bidirectional way using the native PostgreSQL replication, where the two clusters are taken as Master, I did several searches and found solutions like Pgpool, but this type of solution does not serve me because of the need for a unique machine for process management.
