Horton

Re: max_slot_wal_keep_size and wal_keep_segments

Alvaro Herrera <alvherre@2ndquadrant.com>

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From: Alvaro Herrera <alvherre@2ndquadrant.com>
To: Fujii Masao <masao.fujii@oss.nttdata.com>
Cc: pgsql-hackers@postgresql.org
Date: 2020-07-01T03:26:05Z
Lists: pgsql-hackers 
On 2020-Jun-30, Fujii Masao wrote:

> Hi,
> 
> When I talked about max_slot_wal_keep_size as new feature in v13
> at the conference, I received the question like "Why are the units of
> setting values in max_slot_wal_keep_size and wal_keep_segments different?"
> from audience. That difference looks confusing for users and
> IMO it's better to use the same unit for them. Thought?

Do we still need wal_keep_segments for anything?  Maybe we should
consider removing that functionality instead ... and even if we don't
remove it in 13, then what is the point of renaming it only to remove it
shortly after?

-- 
Álvaro Herrera                https://www.2ndQuadrant.com/
PostgreSQL Development, 24x7 Support, Remote DBA, Training & Services

Commits

  1. doc: Mention the rename of wal_keep_segments GUC in release note.

  2. Rename wal_keep_segments to wal_keep_size.