| From: | Nathan Bossart <nathandbossart(at)gmail(dot)com> |
|---|---|
| To: | Andres Freund <andres(at)anarazel(dot)de> |
| Cc: | "Bossart, Nathan" <bossartn(at)amazon(dot)com>, Bharath Rupireddy <bharath(dot)rupireddyforpostgres(at)gmail(dot)com>, Maxim Orlov <orlovmg(at)gmail(dot)com>, Amul Sul <sulamul(at)gmail(dot)com>, Bruce Momjian <bruce(at)momjian(dot)us>, Robert Haas <robertmhaas(at)gmail(dot)com>, "pgsql-hackers(at)postgresql(dot)org" <pgsql-hackers(at)postgresql(dot)org> |
| Subject: | Re: O(n) tasks cause lengthy startups and checkpoints |
| Date: | 2022-02-18 20:51:11 |
| Message-ID: | 20220218205111.GA3447220@nathanxps13 |
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| Lists: | pgsql-hackers |
> 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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