Re: subscriptionCheck failures on nightjar - Mailing list pgsql-hackers

From Tom Lane
Subject Re: subscriptionCheck failures on nightjar
Date
Msg-id 7361.1568738373@sss.pgh.pa.us
Whole thread Raw
In response to Re: subscriptionCheck failures on nightjar  (Robert Haas <robertmhaas@gmail.com>)
Responses Re: subscriptionCheck failures on nightjar
List pgsql-hackers
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



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