We are putting together an architecture to support High Availability for our Postgres 9.5 Database. We have 1 master and 3 slaves Replicating the data of the master. When The master goes down Slave 1 is promoted to new master but Slave 2 and Slave 3 are still pointing to the previous master and not the updated master node. Is there a way to make the slaves to read from the new master dynamically . Or does it require changing the configurations manually and restarting the slaves?
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