Horton

Re: remove more archiving overhead

Nathan Bossart <nathandbossart@gmail.com>

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From: Nathan Bossart <nathandbossart@gmail.com>
To: David Steele <david@pgmasters.net>
Cc: Robert Haas <robertmhaas@gmail.com>, Fujii Masao <masao.fujii@oss.nttdata.com>, Kyotaro Horiguchi <horikyota.ntt@gmail.com>, "pgsql-hackers@postgresql.org" <pgsql-hackers@postgresql.org>
Date: 2022-07-07T18:22:51Z
Lists: pgsql-hackers 
On Thu, Jul 07, 2022 at 10:51:42AM -0700, Nathan Bossart wrote:
> +    library to ensure that it indeed does not overwrite an existing file.  When
> +    a pre-existing file is encountered, the archive library may return
> +    <literal>true</literal> if the WAL file has identical contents to the
> +    pre-existing archive.  Alternatively, the archive library can return

This should likely say something about ensuring the pre-existing file is
persisted to disk before returning true.

-- 
Nathan Bossart
Amazon Web Services: https://aws.amazon.com

Commits

  1. Be more prescriptive in new doc about re-archiving of same WAL file.

  2. doc: Add note about re-archiving of same WAL files in docs.

  3. Reduce overhead of renaming archive status files.