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From: Erik Dobák <[email protected]>
To: Tom Lane <[email protected]>
Cc: David G. Johnston <[email protected]>
Cc: [email protected]
Subject: Re: BUG #18985: fast shutdown does not close connections from qlik data gateway data movement aka. replicate
Date: Tue, 15 Jul 2025 20:32:53 +0200
Message-ID: <CAH7-e5vFAX+-EkjT20uMUw3kA8pNv53aD_jKR8+QBB+1hse9pg@mail.gmail.com> (raw)
In-Reply-To: <[email protected]>
References: <[email protected]>
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On Tue, 15 Jul 2025, 20:00 Tom Lane, <[email protected]> wrote:

> "David G. Johnston" <[email protected]> writes:
> > The observed behavior of the server seems like a bug no matter how
> > well-coded or not the software trying to make the connecting is.  The
> > server should be able to close and disallow clients no matter what they
> are
> > doing.
>
> We will SIGKILL recalcitrant children during an "immediate" shutdown.
> "Fast" shutdown is not defined to do that, and should not do so
> because it'd imply having to do an unclean restart later.
>
> I just tested logical replication both ways between current master and
> v14 branch tip, and in either case the publishing server stops pretty
> much instantaneously after "pg_ctl stop -m fast".  So I don't see
> anything broken about our code, and I remain of the opinion that Qlik
> is probably at fault.
>
>                         regards, tom lane
>
thank you Tom,

based on the documentation mentioned in my initial post i was thinking that
the connections are closed during " fast" shutdown immediately.

i will forward this to Qlik then.

is there a better documentation that would explain the process of shutdown
than the link i posted above?

regards

E

>

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