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help / color / mirror / Atom feedFrom: Antonin Houska <ah@cybertec.at>
To: Alvaro Herrera <alvherre@alvh.no-ip.org>
Cc: Mihail Nikalayeu <mihailnikalayeu@gmail.com>
Cc: Pg Hackers <pgsql-hackers@lists.postgresql.org>
Cc: Robert Treat <rob@xzilla.net>
Subject: Re: Adding REPACK [concurrently]
Date: Mon, 05 Jan 2026 15:59:32 +0100
Message-ID: <26358.1767625172@localhost> (raw)
In-Reply-To: <202601051404.qkpher3pinlm@alvherre.pgsql>
References: <202601051404.qkpher3pinlm@alvherre.pgsql>
Alvaro Herrera <alvherre@alvh.no-ip.org> wrote:
> On 2026-Jan-05, Antonin Houska wrote:
>
> > Mihail Nikalayeu <mihailnikalayeu@gmail.com> wrote:
>
> > > Probably it is because
> > > > 100000L, /* XXX Tune the delay. */
> > >
> > > 100 seconds is clearly too much.
> >
> > I confused milliseconds with microseconds. Since I was only running the code
> > with debugger, the long delays didn't appear to be a problem.
> >
> > Instead of tuning the timeout, I'm thinking of introducing a condition
> > variable that signals WAL flushing.
>
> I think there is a patch that adds support for this in the queue already
> -- see this message:
> https://postgr.es/m/CAPpHfds-KiZRuCruc0jHxLSxLqzKcHJGwOFFA0b_RgaJvtUOEQ@mail.gmail.com
Thanks for the hint! It seems that the already committed WaitForLSN() function
does what I need.
--
Antonin Houska
Web: https://www.cybertec-postgresql.com
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To: pgsql-hackers@postgresql.org
Cc: ah@cybertec.at, alvherre@alvh.no-ip.org, mihailnikalayeu@gmail.com, pgsql-hackers@lists.postgresql.org, rob@xzilla.net
Subject: Re: Adding REPACK [concurrently]
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