Re: max_slot_wal_keep_size comment in postgresql.conf

From: Kyotaro Horiguchi <horikyota(dot)ntt(at)gmail(dot)com>
To: jeff(dot)janes(at)gmail(dot)com
Cc: pgsql-hackers(at)postgresql(dot)org
Subject: Re: max_slot_wal_keep_size comment in postgresql.conf
Date: 2020-05-27 01:46:27
Message-ID: 20200527.104627.1384873106222413598.horikyota.ntt@gmail.com
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At Tue, 26 May 2020 09:10:40 -0400, Jeff Janes <jeff(dot)janes(at)gmail(dot)com> wrote in
> In postgresql.conf, it says:
>
> #max_slot_wal_keep_size = -1 # measured in bytes; -1 disables
>
> I don't know if that is describing the dimension of this parameter or the
> units of it, but the default units for it are megabytes, not individual
> bytes, so I think it is pretty confusing.

Agreed. It should be a leftover at the time the unit was changed
(before committed) to MB from bytes. The default value makes the
confusion worse.

Is the following works?

#max_slot_wal_keep_size = -1 # in MB; -1 disables

regards.

--
Kyotaro Horiguchi
NTT Open Source Software Center

Attachment Content-Type Size
0001-Change-a-comment-in-postgresql.conf.sample.patch text/x-patch 1.1 KB

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