Re: Fwd: Re: A new look at old NFS readdir() problems?

On Tue, Jan  7, 2025 at 01:03:05AM +0000, David Steele wrote:
> > > I'm more concerned about the report we saw on SUSE/NFS [1]. If that
> > > report is accurate it indicates this may not be something we can just
> > > document and move on from -- unless we are willing to entirely drop
> > > support for NFS.
> > > [1] https://github.com/pgbackrest/pgbackrest/issues/1423
> > 
> > I installed an up-to-date OpenSUSE image (Leap 15.6) and it passes
> > my "rmtree" test just fine with my NAS.  The report you cite
> > doesn't have any details on what the NFS server was, but I'd be
> > inclined to guess that that server's filesystem lacked support
> > for stable NFS cookies.
> 
> The internal report we received might have had a similar cause. Sure seems
> like a minefield for any user trying to figure out if their setup is
> compliant, though. In many setups (especially production) a drop database is
> rare.

Will people now always get a clear error on failure?  Crazy idea, but
could we have initdb or postmaster start test this? 

-- 
  Bruce Momjian  <bruce@momjian.us>        https://momjian.us
  EDB                                      https://enterprisedb.com

  Do not let urgent matters crowd out time for investment in the future.