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help / color / mirror / Atom feedFrom: Michael Paquier <[email protected]>
To: Chris Cleveland <[email protected]>
Cc: PostgreSQL Hackers <[email protected]>
Subject: Re: Possible to trigger autovacuum?
Date: Tue, 20 Feb 2024 08:02:34 +0900
Message-ID: <[email protected]> (raw)
In-Reply-To: <CABSN6VfgfrECprJQSs0=qhaJd1usXQtQMOz_AGd-UVaGXJFQNw@mail.gmail.com>
References: <CABSN6VfgfrECprJQSs0=qhaJd1usXQtQMOz_AGd-UVaGXJFQNw@mail.gmail.com>
On Mon, Feb 19, 2024 at 03:15:29PM -0600, Chris Cleveland wrote:
> Is it possible to launch an autovacuum from within an extension?
>
> I'm developing an index access method. After the index gets built it needs
> some cleanup and optimization. I'd prefer to do this in the
> amvacuumcleanup() method so it can happen periodically and asynchronously.
>
> I could fire up a background worker to do the job, but it would be a lot
> simpler to call please_launch_autovacuum_right_now();
The autovacuum launcher can be stopped in its nap with signals, like a
SIGHUP. So you could rely on that to force a job to happen on a given
database based on the timing you're aiming for.
--
Michael
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