From: Anastasia Lubennikova <a.lubennikova@postgrespro.ru>
To: Kyotaro Horiguchi <horikyota.ntt@gmail.com>
To: hlinnaka@iki.fi
Cc: matsumura.ryo@fujitsu.com
Cc: bossartn@amazon.com
Cc: masao.fujii@gmail.com
Cc: pgsql-hackers@postgresql.org
Subject: Re: archive status ".ready" files may be created too early
Date: Sun, 29 Nov 2020 22:16:58 +0300
Message-ID: <6009933f-5b21-db6a-a23a-14a414aba94d@postgrespro.ru> (raw)
In-Reply-To: <20201014.090628.839639906081252194.horikyota.ntt@gmail.com>
References: <20200706.141340.695077532820840879.horikyota.ntt@gmail.com>
<OSAPR01MB50270BF01719418683625CECE8660@OSAPR01MB5027.jpnprd01.prod.outlook.com>
<65e309c0-5d51-7f9e-80ed-947414db8280@iki.fi>
<20201014.090628.839639906081252194.horikyota.ntt@gmail.com>
On 14.10.2020 03:06, Kyotaro Horiguchi wrote:
> The patch includes a fix for primary->standby case. But I'm not sure
> we can do that in the cascaded case. A standby is not aware of the
> structure of a WAL blob and has no idea of up-to-where to send the
> received blobs. However, if we can rely on the behavior of CopyData
> that we always receive a blob as a whole sent from the sender at once,
> the cascaded standbys are free from the trouble (as far as the
> cascaded-standby doesn't crash just before writing the last-half of a
> record into pg_wal and after archiving the last full-segment, which
> seems unlikely.).
>
> regards.
>
Status update for a commitfest entry.
This entry was "Waiting on author" during this CF. As I see, the latest
message contains new version of the patch.
Does it need more work? Are you going to continue working on it?
--
Anastasia Lubennikova
Postgres Professional: http://www.postgrespro.com
The Russian Postgres Company
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Reply to all the recipients using the --to and --cc options:
reply via email
To: pgsql-hackers@postgresql.org
Cc: a.lubennikova@postgrespro.ru, horikyota.ntt@gmail.com, hlinnaka@iki.fi, matsumura.ryo@fujitsu.com, bossartn@amazon.com, masao.fujii@gmail.com
Subject: Re: archive status ".ready" files may be created too early
In-Reply-To: <6009933f-5b21-db6a-a23a-14a414aba94d@postgrespro.ru>
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
This inbox is served by DDX for PostgreSQL; see mirroring instructions
for how to clone and mirror all data and code used for this inbox