I did the migration from PostgreSQL 9.4 to version 9.6, but now the stream replication is not working, it stopped replicating.
installation of postgres 9.6 on the three servers (master, slave1 and slave2).
running pg_upgrade on the three servers
The message that appears in the slaves server database log is as follows:
2017-07-13 19:01:46 -03 : [1-1] user =, db =, client =, appname = FATAL: databa System identifier differs between the primary and standby
2017-07-13 19:01:46 -03 : [2-1] user =, db =, client =, appname = DETAIL: The p Rimary's identifier is 6442320581826004577, the standby's identifier is 64423219 34563538204.
How do I resolve this problem?