Re: Separate GUC for replication origins

Euler Taveira <euler@eulerto.com>

From: "Euler Taveira" <euler@eulerto.com>
To: "Amit Kapila" <amit.kapila16@gmail.com>
Cc: "Masahiko Sawada" <sawada.mshk@gmail.com>, "Peter Eisentraut" <peter@eisentraut.org>, pgsql-hackers@lists.postgresql.org
Date: 2025-02-06T00:39:05Z
Lists: pgsql-hackers
On Wed, Feb 5, 2025, at 1:56 AM, Amit Kapila wrote:
> On Wed, Feb 5, 2025 at 8:17 AM Euler Taveira <euler@eulerto.com> wrote:
> >
> > Under reflection, an accurate name is max_replication_origin_session_setup. A
> > counter argument is that it is a long name (top-5 length).
> >
> > postgres=# select n, length(n) from (values('max_replication_origins'),
> > ('max_tracked_replication_origins'),('max_replication_origin_states'),
> > ('max_replication_origin_session_setup')) as gucs(n);
> >                   n                   | length
> > --------------------------------------+--------
> > max_replication_origins              |     23
> > max_tracked_replication_origins      |     31
> > max_replication_origin_states        |     29
> > max_replication_origin_session_setup |     36
> > (4 rows)
> >
> 
> The other possibility is max_replication_origin_sessions.

Looks reasonable to me.

Opinions?


--
Euler Taveira
EDB   https://www.enterprisedb.com/

Commits

  1. Add GUC option to control maximum active replication origins.

  2. Better document logical replication parameters

  3. Introduce replication progress tracking infrastructure.