If the connection between the master and standby drops, it will take some time for that to be noticed across an indirect network. To ensure that a dropped connection is noticed as soon as possible, you may wish to adjust the timeout settings.
The standby will notice that the connection to the master has dropped after wal_receiver_timeout milliseconds. Once the connection is dropped the standby will retry the connection to the sending server every wal_retrieve_retry_interval milliseconds. Set these parameters in the postgresql.conf file on the standby.
A sending server will notice that the connection has dropped after wal_sender_timeout milliseconds, set in the postgresql.conf file on the sender. Once the connection is dropped ...
