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help / color / mirror / Atom feedFrom: Nathan Bossart <nathandbossart@gmail.com>
To: Andres Freund <andres@anarazel.de>
Cc: Bossart, Nathan <bossartn@amazon.com>
Cc: Bharath Rupireddy <bharath.rupireddyforpostgres@gmail.com>
Cc: Maxim Orlov <orlovmg@gmail.com>
Cc: Amul Sul <sulamul@gmail.com>
Cc: Bruce Momjian <bruce@momjian.us>
Cc: Robert Haas <robertmhaas@gmail.com>
Cc: pgsql-hackers@postgresql.org <pgsql-hackers@postgresql.org>
Subject: Re: O(n) tasks cause lengthy startups and checkpoints
Date: Fri, 18 Feb 2022 12:51:11 -0800
Message-ID: <20220218205111.GA3447220@nathanxps13> (raw)
In-Reply-To: <20220218164454.GA3403811@nathanxps13>
References: <20220217015052.2y3wxibeommk37ey@alap3.anarazel.de>
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<20220218164454.GA3403811@nathanxps13>
> On Thu, Feb 17, 2022 at 03:12:47PM -0800, Andres Freund wrote:
>>> > The improvements around deleting temporary files and serialized snapshots
>>> > afaict don't require a dedicated process - they're only relevant during
>>> > startup. We could use the approach of renaming the directory out of the way as
>>> > done in this patchset but perform the cleanup in the startup process after
>>> > we're up.
BTW I know you don't like the dedicated process approach, but one
improvement to that approach could be to shut down the custodian process
when it has nothing to do.
--
Nathan Bossart
Amazon Web Services: https://aws.amazon.com
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To: pgsql-hackers@postgresql.org
Cc: nathandbossart@gmail.com, andres@anarazel.de, bossartn@amazon.com, bharath.rupireddyforpostgres@gmail.com, orlovmg@gmail.com, sulamul@gmail.com, bruce@momjian.us, robertmhaas@gmail.com
Subject: Re: O(n) tasks cause lengthy startups and checkpoints
In-Reply-To: <20220218205111.GA3447220@nathanxps13>
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