Re: Improving connection scalability: GetSnapshotData() - Mailing list pgsql-hackers

From Peter Geoghegan
Subject Re: Improving connection scalability: GetSnapshotData()
Date
Msg-id CAH2-WznuZD9QxFzWGd6Czz_89gpO=2+TEa84ZJibibWhtTh8Ww@mail.gmail.com
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In response to Re: Improving connection scalability: GetSnapshotData()  (Andres Freund <andres@anarazel.de>)
List pgsql-hackers
On Tue, Apr 7, 2020 at 11:28 AM Andres Freund <andres@anarazel.de> wrote:
> There is a lot of code that is pretty unsafe around wraparounds... They
> are getting easier and easier to hit on a regular schedule in production
> (plenty of databases that hit wraparounds multiple times a week). And I
> don't think we as PG developers often don't quite take that into
> account.

It would be nice if there was high level documentation on wraparound
hazards. Maybe even a dedicated README file.

-- 
Peter Geoghegan



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