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Add GUC option to control maximum active replication origins.

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This commit introduces a new GUC option max_active_replication_origins
to control the maximum number of active replication
origins. Previously, this was controlled by
'max_replication_slots'. Having a separate GUC option provides better
flexibility for setting up subscribers, as they may not require
replication slots (for cascading replication) but always require
replication origins.

Author: Euler Taveira <euler@eulerto.com>
Reviewed-by: Amit Kapila <amit.kapila16@gmail.com>
Reviewed-by: Masahiko Sawada <sawada.mshk@gmail.com>
Reviewed-by: Peter Eisentraut <peter@eisentraut.org>
Reviewed-by: vignesh C <vignesh21@gmail.com>
Discussion: https://postgr.es/m/b81db436-8262-4575-b7c4-bc0c1551000b@app.fastmail.com
This commit is contained in:
Masahiko Sawada
2025-03-21 12:20:15 -07:00
parent 0e032a2240
commit 04ff636cbc
12 changed files with 93 additions and 93 deletions
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doc/src/sgml/ref/pg_createsubscriber.sgml
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@@ -334,7 +334,7 @@ PostgreSQL documentation
<para>
The target server must be used as a physical standby. The target server
must have <xref linkend="guc-max-replication-slots"/> and <xref
must have <xref linkend="guc-max-active-replication-origins"/> and <xref
linkend="guc-max-logical-replication-workers"/> configured to a value
greater than or equal to the number of specified databases. The target
server must have <xref linkend="guc-max-worker-processes"/> configured to a