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><A
NAME="STANDBY-SETTINGS"
>26.3. Standby Server Settings</A
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><DT
><A
NAME="STANDBY-MODE"
></A
><TT
CLASS="VARNAME"
>standby_mode</TT
> (<TT
CLASS="TYPE"
>boolean</TT
>)</DT
><DD
><P
> Specifies whether to start the <SPAN
CLASS="PRODUCTNAME"
>PostgreSQL</SPAN
> server as
a standby. If this parameter is <TT
CLASS="LITERAL"
>on</TT
>, the server will
not stop recovery when the end of archived WAL is reached, but
will keep trying to continue recovery by fetching new WAL segments
using <TT
CLASS="VARNAME"
>restore_command</TT
>
and/or by connecting to the primary server as specified by the
<TT
CLASS="VARNAME"
>primary_conninfo</TT
> setting.
</P
></DD
><DT
><A
NAME="PRIMARY-CONNINFO"
></A
><TT
CLASS="VARNAME"
>primary_conninfo</TT
> (<TT
CLASS="TYPE"
>string</TT
>)</DT
><DD
><P
> Specifies a connection string to be used for the standby server
to connect with the primary. This string is in the format
accepted by the libpq <CODE
CLASS="FUNCTION"
>PQconnectdb</CODE
> function,
described in <A
HREF="libpq-connect.html"
>Section 31.1</A
>. If any option is
unspecified in this string, then the corresponding environment
variable (see <A
HREF="libpq-envars.html"
>Section 31.14</A
>) is checked. If the
environment variable is not set either, then
defaults are used.
</P
><P
> The connection string should specify the host name (or address)
of the primary server, as well as the port number if it is not
the same as the standby server's default.
Also specify a user name corresponding to a suitably-privileged role
on the primary (see
<A
HREF="warm-standby.html#STREAMING-REPLICATION-AUTHENTICATION"
>Section 25.2.5.1</A
>).
A password needs to be provided too, if the primary demands password
authentication. It can be provided in the
<TT
CLASS="VARNAME"
>primary_conninfo</TT
> string, or in a separate
<TT
CLASS="FILENAME"
>~/.pgpass</TT
> file on the standby server (use
<TT
CLASS="LITERAL"
>replication</TT
> as the database name).
Do not specify a database name in the
<TT
CLASS="VARNAME"
>primary_conninfo</TT
> string.
</P
><P
> This setting has no effect if <TT
CLASS="VARNAME"
>standby_mode</TT
> is <TT
CLASS="LITERAL"
>off</TT
>.
</P
></DD
><DT
><A
NAME="TRIGGER-FILE"
></A
><TT
CLASS="VARNAME"
>trigger_file</TT
> (<TT
CLASS="TYPE"
>string</TT
>)</DT
><DD
><P
> Specifies a trigger file whose presence ends recovery in the
standby. Even if this value is not set, you can still promote
the standby using <TT
CLASS="COMMAND"
>pg_ctl promote</TT
>.
This setting has no effect if <TT
CLASS="VARNAME"
>standby_mode</TT
> is <TT
CLASS="LITERAL"
>off</TT
>.
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