This can be a good example: Application server e.g. tomcat having two entries to connect to databases, one for master and 2nd for Slave (ideally used when slave becomes master). If application is not able to connect to first, it will try to connect to 2nd.
We have postgresql 9.5 with streaming replication(Master-slave) and automatic failover. Due to network glitch we are in master-master situation for quite some time. Please, could you advise best way to confirm which node is latest in terms of updates to the postgres databases.
It might help to know how the two masters received data when they where operating independently.
