Wiki / Configuration Parameters

Determines the number of connection “slots” that are reserved for connections by PostgreSQL superusers. At most max_connections connections can ever be active simultaneously. Whenever the number of active concurrent connections is at least max_connections minus superuser_reserved_connections, new connections will be accepted only for superusers. The connection slots reserved by this parameter are intended as final reserve for emergency use after the slots reserved by reserved_connections have been exhausted. The default value is three connections. The value must be less than max_connections minus reserved_connections. This parameter can only be set at server start.

English manual coverage begins with PostgreSQL 7.4. Source history and runtime observations have their own recorded version boundaries.

boot val

3

category

Connections and Authentication / Connection Settings

context

postmaster

documented

true

enumvals

Unknown

extra desc

Unknown

lang

en

max val

262143

metadata version

18

min val

0

name

superuser_reserved_connections

short desc

Sets the number of connection slots reserved for superusers.

source

pg-settings-source-snapshot

unit

Unknown

vartype

integer