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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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12
src/backend/utils/misc/guc_tables.c
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@@ -3374,6 +3374,18 @@ struct config_int ConfigureNamesInt[] =
NULL, NULL, NULL
},
{
{"max_active_replication_origins",
PGC_POSTMASTER,
REPLICATION_SUBSCRIBERS,
gettext_noop("Sets the maximum number of active replication origins."),
NULL
},
&max_active_replication_origins,
10, 0, MAX_BACKENDS,
NULL, NULL, NULL
},
{
{"log_rotation_age", PGC_SIGHUP, LOGGING_WHERE,
gettext_noop("Sets the amount of time to wait before forcing "