Wiki / Configuration Parameters

Specifies the amount of time after which a TCP keepalive message that has not been acknowledged by the client should be retransmitted. If this value is specified without units, it is taken as seconds. A value of 0 (the default) selects the operating system's default. On Windows, setting a value of 0 will set this parameter to 1 second, since Windows does not provide a way to read the system default value. This parameter is supported only on systems that support TCP_KEEPINTVL or an equivalent socket option, and on Windows; on other systems, it must be zero. In sessions connected via a Unix-domain socket, this parameter is ignored and always reads as zero.

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

boot val

0

category

Connections and Authentication / TCP Settings

context

user

documented

true

enumvals

Unknown

extra desc

0 means use the system default.

lang

en

max val

2147483647

metadata version

18

min val

0

name

tcp_keepalives_interval

short desc

Time between TCP keepalive retransmits.

source

pg-settings-source-snapshot

unit

s

vartype

integer