Re: [bug fix] "pg_ctl stop" times out when it should respond quickly

From: "Peter Eisentraut" <peter_e(at)gmx(dot)net>
> This patch breaks the regression tests:
>
> xml ... ok
> test stats ... ok
> ============== shutting down postmaster ==============
> <waits a long time>
> pg_ctl: server does not shut down
>
> pg_regress: could not stop postmaster: exit code was 256

pg_ctl timed out waiting for the zombie postgres.

maumau 19621 18849 0 15:21 pts/9 00:00:00 [postgres] <defunct>
maumau 20253 18849 0 15:22 pts/9 00:00:00
/maumau/postgresql-9.4/src/test/regress/./tmp_check/install//maumau/pgsql/bin/pg_ctl
stop -D /maumau/postgresql-9.4/src/test/regress/./tmp_check/data -s -m fast

pg_regress must wait for postgres to terminate by calling waitpid(), because
it invoked postgres directly. The attached pg_regress_pg_stop.patch does
this. If you like the combination of this and the original fix for pg_ctl
in one patch, please use pg_stop_fail_v3.patch.

Sorry for causing trouble.

Regards
MauMau