Robert Haas <robertmhaas@gmail.com> writes:
> On Mon, Aug 26, 2019 at 9:29 AM Tomas Vondra
> <tomas.vondra@2ndquadrant.com> wrote:
>> This is one of the remaining open items, and we don't seem to be moving
>> forward with it :-(
> Why exactly is this an open item, anyway?
The reason it's still here is that Andres expressed a concern that
there might be more than meets the eye in this. What meets the eye
is that PANICing on file-not-found is not appropriate here, but Andres
seemed to think that the file not being present might reflect an
actual bug not just an expectable race condition [1].
Personally I'd be happy just to treat it as an expectable case and
fix the code to not PANIC on file-not-found.
In either case, it probably belongs in the "older bugs" section;
nightjar is showing the same failure on v11 from time to time.
regards, tom lane
[1] https://www.postgresql.org/message-id/20190213215147.cjbymfojf6xndr4t%40alap3.anarazel.de