Horton

Re: Teach pg_receivewal to use lz4 compression

Robert Haas <robertmhaas@gmail.com>

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From: Robert Haas <robertmhaas@gmail.com>
To: Michael Paquier <michael@paquier.xyz>
Cc: Georgios Kokolatos <gkokolatos@pm.me>, Magnus Hagander <magnus@hagander.net>, Dilip Kumar <dilipbalaut@gmail.com>, PostgreSQL Hackers <pgsql-hackers@lists.postgresql.org>
Date: 2022-02-11T15:07:49Z
Lists: pgsql-hackers 
On Thu, Nov 4, 2021 at 10:47 PM Michael Paquier <michael@paquier.xyz> wrote:
> Indeed.  My rebase was a bit sloppy here.

Hi!

Over in http://postgr.es/m/CA+TgmoYUDEJga2qV_XbAZ=pGEBaOsgFmzZ6Ac4_sRwOm_+UeHA@mail.gmail.com
I was noticing that CreateWalTarMethod doesn't support LZ4
compression. It would be nice if it did. I thought maybe the patch on
this thread would fix that, but I think maybe it doesn't, because it
looks like that's touching the WalDirectoryMethod part of that file,
rather than the WalTarMethod part. Is that correct? And, on a related
note, Michael, do you plan to get something committed here?

-- 
Robert Haas
EDB: http://www.enterprisedb.com

Commits

  1. Fix header inclusion order in pg_receivewal.c

  2. Remove useless LZ4 system call on failure when writing file header

  3. Add support for LZ4 compression in pg_receivewal

  4. Rework compression options of pg_receivewal

  5. Clarify some errors in pg_receivewal when closing WAL segments