From: | Efraín Déctor <efraindector(at)motumweb(dot)com> |
---|---|
To: | "David G(dot) Johnston" <david(dot)g(dot)johnston(at)gmail(dot)com> |
Cc: | "pgsql-novice(at)postgresql(dot)org" <pgsql-novice(at)postgresql(dot)org> |
Subject: | Re: Question about Logical Replication |
Date: | 2017-12-11 21:15:41 |
Message-ID: | 8d81155a-3e78-055a-660e-655e642c322c@motumweb.com |
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Thread: | |
Lists: | pgsql-novice |
Thank you David.
So the defaults are fine for me since I will only have 1 subscriber.
Thanks again!
El 11/12/2017 a las 01:42 p. m., David G. Johnston escribió:
> On Mon, Dec 11, 2017 at 12:26 PM, Efraín Déctor
> <efraindector(at)motumweb(dot)com <mailto:efraindector(at)motumweb(dot)com>>wrote:
>
> Hello.
>
> Do I need to configure the settings (max_replication_slots ,
> max_wal_senders, etc) according to the number of tables to be
> replicated?
>
>
> In short, no. The determination of values for these settings is
> based upon other aspects of the overall multi-server system.
>
> Physical replication is cluster-based, not table based. The
> slots/senders are roughly the number of servers involved in the setup.
>
> Logical replication is publication based.
>
> "A publication is a set of changes generated from a table or a group
> of tables, and might also be described as a change set or replication
> set. Each publication exists in only one database."
>
> The slots/senders are consumed as servers subscribe to publications.
>
> David J.
>
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