Andres Freund <andres@anarazel.de> writes:
> In a couple tests I (IIRC others as well) had the problem that a config reload
> isn't actually synchronous. I.e. a sequence like
> $node_primary->reload;
> $node_primary->safe_psql('postgres',...)
> isn't actually guaranteed to observe the config as reloaded in the the
> safe_psql().
Brute force way: s/reload/restart/
Less brute force: wait for "SHOW variable-you-changed" to report the
value you expect.
regards, tom lane