The following bug has been logged on the website:
Bug reference: 14227
Logged by: Rob Nieuwenhuizen
Email address: rob(dot)nieuwenhuizen(at)mobpro(dot)com
PostgreSQL version: 9.5.3
Operating system: Debian Wheezy
Description:
I have a master / slave setup with a hot-standby slaves.
When I do a failover to the hot-standby slave the slave becomes master, but
the former master is not shot down.
This results in 2 master servers.
Maybe this is by design, maybe there is a configuration flag I'm missing.