Alvaro Herrera <alvherre(at)2ndquadrant(dot)com> writes:
> Since we have seen this kind of failure reported many times, I wonder if
> it'd make sense to check specifically for inability to resolve localhost,
> if only to save troubleshooters' time.
Right now, you only get a failure of the pgstats subsystem, which is
logged. I don't think we can do much more than that unless you want
to make it a postmaster-refuses-to-start case, which seems like not
a net improvement.
regards, tom lane