I'm currently testing SR/HS in 9.0beta1 and I noticed that it seems
quite easy to end up in a situation where you have a standby that seems
to be stuck in:
$ psql -p 5433
psql: FATAL: the database system is shutting down
but not not actually shuting down ever. I ran into that a few times now
(mostly because I'm trying to chase a recovery issue I hit during
earlier testing) by simply having the master iterate between a pgbench
run and "idle" while simple doing pg_ctl restart in a loop on the standby.
I do vaguely recall some discussions of that but I thought the issue git
settled somehow?
Stefan