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><H1
><A
NAME="APP-PG-CTL"
></A
><SPAN
CLASS="APPLICATION"
>pg_ctl</SPAN
></H1
><DIV
CLASS="REFNAMEDIV"
><A
NAME="AEN86938"
></A
><H2
>Name</H2
>pg_ctl -- initialize, start, stop, or control a <SPAN
CLASS="PRODUCTNAME"
>PostgreSQL</SPAN
> server</DIV
><DIV
CLASS="REFSYNOPSISDIV"
><A
NAME="AEN86944"
></A
><H2
>Synopsis</H2
><P
><TT
CLASS="COMMAND"
>pg_ctl</TT
> <TT
CLASS="OPTION"
>init[db]</TT
> [<TT
CLASS="OPTION"
>-s</TT
>] [<TT
CLASS="OPTION"
>-D</TT
> <TT
CLASS="REPLACEABLE"
><I
>datadir</I
></TT
>] [<TT
CLASS="OPTION"
>-o</TT
> <TT
CLASS="REPLACEABLE"
><I
>initdb-options</I
></TT
>]</P
><P
><TT
CLASS="COMMAND"
>pg_ctl</TT
> <TT
CLASS="OPTION"
>start</TT
> [<TT
CLASS="OPTION"
>-w</TT
>] [<TT
CLASS="OPTION"
>-t</TT
> <TT
CLASS="REPLACEABLE"
><I
>seconds</I
></TT
>] [<TT
CLASS="OPTION"
>-s</TT
>] [<TT
CLASS="OPTION"
>-D</TT
> <TT
CLASS="REPLACEABLE"
><I
>datadir</I
></TT
>] [<TT
CLASS="OPTION"
>-l</TT
> <TT
CLASS="REPLACEABLE"
><I
>filename</I
></TT
>] [<TT
CLASS="OPTION"
>-o</TT
> <TT
CLASS="REPLACEABLE"
><I
>options</I
></TT
>] [<TT
CLASS="OPTION"
>-p</TT
> <TT
CLASS="REPLACEABLE"
><I
>path</I
></TT
>] [<TT
CLASS="OPTION"
>-c</TT
>]</P
><P
><TT
CLASS="COMMAND"
>pg_ctl</TT
> <TT
CLASS="OPTION"
>stop</TT
> [<TT
CLASS="OPTION"
>-W</TT
>] [<TT
CLASS="OPTION"
>-t</TT
> <TT
CLASS="REPLACEABLE"
><I
>seconds</I
></TT
>] [<TT
CLASS="OPTION"
>-s</TT
>] [<TT
CLASS="OPTION"
>-D</TT
> <TT
CLASS="REPLACEABLE"
><I
>datadir</I
></TT
>] [<TT
CLASS="OPTION"
>-m</TT
>
<TT
CLASS="OPTION"
>s[mart]</TT
> | <TT
CLASS="OPTION"
>f[ast]</TT
> | <TT
CLASS="OPTION"
>i[mmediate]</TT
>
]</P
><P
><TT
CLASS="COMMAND"
>pg_ctl</TT
> <TT
CLASS="OPTION"
>restart</TT
> [<TT
CLASS="OPTION"
>-w</TT
>] [<TT
CLASS="OPTION"
>-t</TT
> <TT
CLASS="REPLACEABLE"
><I
>seconds</I
></TT
>] [<TT
CLASS="OPTION"
>-s</TT
>] [<TT
CLASS="OPTION"
>-D</TT
> <TT
CLASS="REPLACEABLE"
><I
>datadir</I
></TT
>] [<TT
CLASS="OPTION"
>-c</TT
>] [<TT
CLASS="OPTION"
>-m</TT
>
<TT
CLASS="OPTION"
>s[mart]</TT
> | <TT
CLASS="OPTION"
>f[ast]</TT
> | <TT
CLASS="OPTION"
>i[mmediate]</TT
>
] [<TT
CLASS="OPTION"
>-o</TT
> <TT
CLASS="REPLACEABLE"
><I
>options</I
></TT
>]</P
><P
><TT
CLASS="COMMAND"
>pg_ctl</TT
> <TT
CLASS="OPTION"
>reload</TT
> [<TT
CLASS="OPTION"
>-s</TT
>] [<TT
CLASS="OPTION"
>-D</TT
> <TT
CLASS="REPLACEABLE"
><I
>datadir</I
></TT
>]</P
><P
><TT
CLASS="COMMAND"
>pg_ctl</TT
> <TT
CLASS="OPTION"
>status</TT
> [<TT
CLASS="OPTION"
>-D</TT
> <TT
CLASS="REPLACEABLE"
><I
>datadir</I
></TT
>]</P
><P
><TT
CLASS="COMMAND"
>pg_ctl</TT
> <TT
CLASS="OPTION"
>promote</TT
> [<TT
CLASS="OPTION"
>-s</TT
>] [<TT
CLASS="OPTION"
>-D</TT
> <TT
CLASS="REPLACEABLE"
><I
>datadir</I
></TT
>]</P
><P
><TT
CLASS="COMMAND"
>pg_ctl</TT
> <TT
CLASS="OPTION"
>kill</TT
> <TT
CLASS="REPLACEABLE"
><I
>signal_name</I
></TT
> <TT
CLASS="REPLACEABLE"
><I
>process_id</I
></TT
> </P
><P
><TT
CLASS="COMMAND"
>pg_ctl</TT
> <TT
CLASS="OPTION"
>register</TT
> [<TT
CLASS="OPTION"
>-N</TT
> <TT
CLASS="REPLACEABLE"
><I
>servicename</I
></TT
>] [<TT
CLASS="OPTION"
>-U</TT
> <TT
CLASS="REPLACEABLE"
><I
>username</I
></TT
>] [<TT
CLASS="OPTION"
>-P</TT
> <TT
CLASS="REPLACEABLE"
><I
>password</I
></TT
>] [<TT
CLASS="OPTION"
>-D</TT
> <TT
CLASS="REPLACEABLE"
><I
>datadir</I
></TT
>] [<TT
CLASS="OPTION"
>-S</TT
>
<TT
CLASS="OPTION"
>a[uto]</TT
> | <TT
CLASS="OPTION"
>d[emand]</TT
>
] [<TT
CLASS="OPTION"
>-w</TT
>] [<TT
CLASS="OPTION"
>-t</TT
> <TT
CLASS="REPLACEABLE"
><I
>seconds</I
></TT
>] [<TT
CLASS="OPTION"
>-s</TT
>] [<TT
CLASS="OPTION"
>-o</TT
> <TT
CLASS="REPLACEABLE"
><I
>options</I
></TT
>]</P
><P
><TT
CLASS="COMMAND"
>pg_ctl</TT
> <TT
CLASS="OPTION"
>unregister</TT
> [<TT
CLASS="OPTION"
>-N</TT
> <TT
CLASS="REPLACEABLE"
><I
>servicename</I
></TT
>]</P
></DIV
><DIV
CLASS="REFSECT1"
><A
NAME="APP-PG-CTL-DESCRIPTION"
></A
><H2
>Description</H2
><P
> <SPAN
CLASS="APPLICATION"
>pg_ctl</SPAN
> is a utility for initializing a
<SPAN
CLASS="PRODUCTNAME"
>PostgreSQL</SPAN
> database cluster, starting,
stopping, or restarting the <SPAN
CLASS="PRODUCTNAME"
>PostgreSQL</SPAN
>
database server (<A
HREF="app-postgres.html"
><SPAN
CLASS="APPLICATION"
>postgres</SPAN
></A
>), or displaying the
status of a running server. Although the server can be started
manually, <SPAN
CLASS="APPLICATION"
>pg_ctl</SPAN
> encapsulates tasks such
as redirecting log output and properly detaching from the terminal
and process group. It also provides convenient options for
controlled shutdown.
</P
><P
> The <TT
CLASS="OPTION"
>init</TT
> or <TT
CLASS="OPTION"
>initdb</TT
> mode creates a new
<SPAN
CLASS="PRODUCTNAME"
>PostgreSQL</SPAN
> database cluster. A database
cluster is a collection of databases that are managed by a single
server instance. This mode invokes the <TT
CLASS="COMMAND"
>initdb</TT
>
command. See <A
HREF="app-initdb.html"
>initdb</A
> for details.
</P
><P
> In <TT
CLASS="OPTION"
>start</TT
> mode, a new server is launched. The
server is started in the background, and its standard input is attached
to <TT
CLASS="FILENAME"
>/dev/null</TT
> (or <TT
CLASS="LITERAL"
>nul</TT
> on Windows).
On Unix-like systems, by default, the server's standard output and
standard error are sent to <SPAN
CLASS="APPLICATION"
>pg_ctl</SPAN
>'s
standard output (not standard error). The standard output of
<SPAN
CLASS="APPLICATION"
>pg_ctl</SPAN
> should then be redirected to a
file or piped to another process such as a log rotating program
like <SPAN
CLASS="APPLICATION"
>rotatelogs</SPAN
>; otherwise <TT
CLASS="COMMAND"
>postgres</TT
>
will write its output to the controlling terminal (from the
background) and will not leave the shell's process group. On
Windows, by default the server's standard output and standard error
are sent to the terminal. These default behaviors can be changed
by using <TT
CLASS="OPTION"
>-l</TT
> to append the server's output to a log file.
Use of either <TT
CLASS="OPTION"
>-l</TT
> or output redirection is recommended.
</P
><P
> In <TT
CLASS="OPTION"
>stop</TT
> mode, the server that is running in
the specified data directory is shut down. Three different
shutdown methods can be selected with the <TT
CLASS="OPTION"
>-m</TT
>
option. <SPAN
CLASS="QUOTE"
>"Smart"</SPAN
> mode (the default) waits for all active
clients to disconnect and any online backup to finish.
If the server is in hot standby, recovery and streaming replication
will be terminated once all clients have disconnected.
<SPAN
CLASS="QUOTE"
>"Fast"</SPAN
> mode does not wait for clients to disconnect and
will terminate an online backup in progress. All active transactions are
rolled back and clients are forcibly disconnected, then the
server is shut down. <SPAN
CLASS="QUOTE"
>"Immediate"</SPAN
> mode will abort
all server processes immediately, without a clean shutdown.
This will lead to a crash-recovery run on the next restart.
</P
><P
> <TT
CLASS="OPTION"
>restart</TT
> mode effectively executes a stop followed
by a start. This allows changing the <TT
CLASS="COMMAND"
>postgres</TT
>
command-line options.
</P
><P
> <TT
CLASS="OPTION"
>reload</TT
> mode simply sends the
<TT
CLASS="COMMAND"
>postgres</TT
> process a <SPAN
CLASS="SYSTEMITEM"
>SIGHUP</SPAN
>
signal, causing it to reread its configuration files
(<TT
CLASS="FILENAME"
>postgresql.conf</TT
>,
<TT
CLASS="FILENAME"
>pg_hba.conf</TT
>, etc.). This allows changing of
configuration-file options that do not require a complete restart
to take effect.
</P
><P
> <TT
CLASS="OPTION"
>status</TT
> mode checks whether a server is running in
the specified data directory. If it is, the <ACRONYM
CLASS="ACRONYM"
>PID</ACRONYM
>
and the command line options that were used to invoke it are
displayed. If the server is not running, the process returns an
exit status of 3.
</P
><P
> In <TT
CLASS="OPTION"
>promote</TT
> mode, the standby server that is
running in the specified data directory is commanded to exit
recovery and begin read-write operations.
</P
><P
> <TT
CLASS="OPTION"
>kill</TT
> mode allows you to send a signal to a specified
process. This is particularly valuable for <SPAN
CLASS="PRODUCTNAME"
>Microsoft Windows</SPAN
>
which does not have a <SPAN
CLASS="APPLICATION"
>kill</SPAN
> command. Use
<TT
CLASS="LITERAL"
>--help</TT
> to see a list of supported signal names.
</P
><P
> <TT
CLASS="OPTION"
>register</TT
> mode allows you to register a system service
on <SPAN
CLASS="PRODUCTNAME"
>Microsoft Windows</SPAN
>. The <TT
CLASS="OPTION"
>-S</TT
> option
allows selection of service start type, either <SPAN
CLASS="QUOTE"
>"auto"</SPAN
> (start
service automatically on system startup) or <SPAN
CLASS="QUOTE"
>"demand"</SPAN
> (start
service on demand).
</P
><P
> <TT
CLASS="OPTION"
>unregister</TT
> mode allows you to unregister a system service
on <SPAN
CLASS="PRODUCTNAME"
>Microsoft Windows</SPAN
>. This undoes the effects of the
<TT
CLASS="OPTION"
>register</TT
> command.
</P
></DIV
><DIV
CLASS="REFSECT1"
><A
NAME="APP-PG-CTL-OPTIONS"
></A
><H2
>Options</H2
><P
></P
><DIV
CLASS="VARIABLELIST"
><DL
><DT
><TT
CLASS="OPTION"
>-c</TT
><BR><TT
CLASS="OPTION"
>--core-file</TT
></DT
><DD
><P
> Attempt to allow server crashes to produce core files, on platforms
where this is possible, by lifting any soft resource limit placed on
core files.
This is useful in debugging or diagnosing problems by allowing a
stack trace to be obtained from a failed server process.
</P
></DD
><DT
><TT
CLASS="OPTION"
>-D <TT
CLASS="REPLACEABLE"
><I
>datadir</I
></TT
></TT
><BR><TT
CLASS="OPTION"
>--pgdata <TT
CLASS="REPLACEABLE"
><I
>datadir</I
></TT
></TT
></DT
><DD
><P
> Specifies the file system location of the database files. If
this is omitted, the environment variable
<TT
CLASS="ENVAR"
>PGDATA</TT
> is used.
</P
></DD
><DT
><TT
CLASS="OPTION"
>-l <TT
CLASS="REPLACEABLE"
><I
>filename</I
></TT
></TT
><BR><TT
CLASS="OPTION"
>--log <TT
CLASS="REPLACEABLE"
><I
>filename</I
></TT
></TT
></DT
><DD
><P
> Append the server log output to
<TT
CLASS="REPLACEABLE"
><I
>filename</I
></TT
>. If the file does not
exist, it is created. The <SPAN
CLASS="SYSTEMITEM"
>umask</SPAN
> is set to 077,
so access to the log file is disallowed to other users by default.
</P
></DD
><DT
><TT
CLASS="OPTION"
>-m <TT
CLASS="REPLACEABLE"
><I
>mode</I
></TT
></TT
><BR><TT
CLASS="OPTION"
>--mode <TT
CLASS="REPLACEABLE"
><I
>mode</I
></TT
></TT
></DT
><DD
><P
> Specifies the shutdown mode. <TT
CLASS="REPLACEABLE"
><I
>mode</I
></TT
>
can be <TT
CLASS="LITERAL"
>smart</TT
>, <TT
CLASS="LITERAL"
>fast</TT
>, or
<TT
CLASS="LITERAL"
>immediate</TT
>, or the first letter of one of
these three. If this is omitted, <TT
CLASS="LITERAL"
>smart</TT
> is used.
</P
></DD
><DT
><TT
CLASS="OPTION"
>-o <TT
CLASS="REPLACEABLE"
><I
>options</I
></TT
></TT
></DT
><DD
><P
> Specifies options to be passed directly to the
<TT
CLASS="COMMAND"
>postgres</TT
> command.
</P
><P
> The options should usually be surrounded by single or double
quotes to ensure that they are passed through as a group.
</P
></DD
><DT
><TT
CLASS="OPTION"
>-o <TT
CLASS="REPLACEABLE"
><I
>initdb-options</I
></TT
></TT
></DT
><DD
><P
> Specifies options to be passed directly to the
<TT
CLASS="COMMAND"
>initdb</TT
> command.
</P
><P
> The options should usually be surrounded by single or double
quotes to ensure that they are passed through as a group.
</P
></DD
><DT
><TT
CLASS="OPTION"
>-p <TT
CLASS="REPLACEABLE"
><I
>path</I
></TT
></TT
></DT
><DD
><P
> Specifies the location of the <TT
CLASS="FILENAME"
>postgres</TT
>
executable. By default the <TT
CLASS="FILENAME"
>postgres</TT
> executable is taken from the same
directory as <TT
CLASS="COMMAND"
>pg_ctl</TT
>, or failing that, the hard-wired
installation directory. It is not necessary to use this
option unless you are doing something unusual and get errors
that the <TT
CLASS="FILENAME"
>postgres</TT
> executable was not found.
</P
><P
> In <TT
CLASS="LITERAL"
>init</TT
> mode, this option analogously
specifies the location of the <TT
CLASS="FILENAME"
>initdb</TT
>
executable.
</P
></DD
><DT
><TT
CLASS="OPTION"
>-s</TT
><BR><TT
CLASS="OPTION"
>--silent</TT
></DT
><DD
><P
> Print only errors, no informational messages.
</P
></DD
><DT
><TT
CLASS="OPTION"
>-t</TT
><BR><TT
CLASS="OPTION"
>--timeout</TT
></DT
><DD
><P
> The maximum number of seconds to wait when waiting for startup or
shutdown to complete. Defaults to the value of the
<TT
CLASS="ENVAR"
>PGCTLTIMEOUT</TT
> environment variable or, if not set, to 60
seconds.
</P
></DD
><DT
><TT
CLASS="OPTION"
>-V</TT
><BR><TT
CLASS="OPTION"
>--version</TT
></DT
><DD
><P
> Print the <SPAN
CLASS="APPLICATION"
>pg_ctl</SPAN
> version and exit.
</P
></DD
><DT
><TT
CLASS="OPTION"
>-w</TT
></DT
><DD
><P
> Wait for the startup or shutdown to complete.
Waiting is the default option for shutdowns, but not startups.
When waiting for startup, <TT
CLASS="COMMAND"
>pg_ctl</TT
> repeatedly
attempts to connect to the server.
When waiting for shutdown, <TT
CLASS="COMMAND"
>pg_ctl</TT
> waits for
the server to remove its <ACRONYM
CLASS="ACRONYM"
>PID</ACRONYM
> file.
<TT
CLASS="COMMAND"
>pg_ctl</TT
> returns an exit code based on the
success of the startup or shutdown.
</P
></DD
><DT
><TT
CLASS="OPTION"
>-W</TT
></DT
><DD
><P
> Do not wait for startup or shutdown to complete. This is the
default for start and restart modes.
</P
></DD
><DT
><TT
CLASS="OPTION"
>-?</TT
><BR><TT
CLASS="OPTION"
>--help</TT
></DT
><DD
><P
> Show help about <SPAN
CLASS="APPLICATION"
>pg_ctl</SPAN
> command line
arguments, and exit.
</P
></DD
></DL
></DIV
><DIV
CLASS="REFSECT2"
><A
NAME="APP-PG-CTL-WINDOWS-OPTIONS"
></A
><H3
>Options for Windows</H3
><P
></P
><DIV
CLASS="VARIABLELIST"
><DL
><DT
><TT
CLASS="OPTION"
>-N <TT
CLASS="REPLACEABLE"
><I
>servicename</I
></TT
></TT
></DT
><DD
><P
> Name of the system service to register. The name will be used
as both the service name and the display name.
</P
></DD
><DT
><TT
CLASS="OPTION"
>-P <TT
CLASS="REPLACEABLE"
><I
>password</I
></TT
></TT
></DT
><DD
><P
> Password for the user to start the service.
</P
></DD
><DT
><TT
CLASS="OPTION"
>-S <TT
CLASS="REPLACEABLE"
><I
>start-type</I
></TT
></TT
></DT
><DD
><P
> Start type of the system service to register. start-type can
be <TT
CLASS="LITERAL"
>auto</TT
>, or <TT
CLASS="LITERAL"
>demand</TT
>, or
the first letter of one of these two. If this is omitted,
<TT
CLASS="LITERAL"
>auto</TT
> is used.
</P
></DD
><DT
><TT
CLASS="OPTION"
>-U <TT
CLASS="REPLACEABLE"
><I
>username</I
></TT
></TT
></DT
><DD
><P
> User name for the user to start the service. For domain users, use the
format <TT
CLASS="LITERAL"
>DOMAIN\username</TT
>.
</P
></DD
></DL
></DIV
></DIV
></DIV
><DIV
CLASS="REFSECT1"
><A
NAME="AEN87315"
></A
><H2
>Environment</H2
><P
></P
><DIV
CLASS="VARIABLELIST"
><DL
><DT
><TT
CLASS="ENVAR"
>PGCTLTIMEOUT</TT
></DT
><DD
><P
> Default limit on the number of seconds to wait when waiting for startup
or shutdown to complete. If not set, the default is 60 seconds.
</P
></DD
><DT
><TT
CLASS="ENVAR"
>PGDATA</TT
></DT
><DD
><P
> Default data directory location.
</P
></DD
></DL
></DIV
><P
> <TT
CLASS="COMMAND"
>pg_ctl</TT
>, like most other <SPAN
CLASS="PRODUCTNAME"
>PostgreSQL</SPAN
>
utilities,
also uses the environment variables supported by <SPAN
CLASS="APPLICATION"
>libpq</SPAN
>
(see <A
HREF="libpq-envars.html"
>Section 31.14</A
>).
For additional server variables, see <A
HREF="app-postgres.html"
><SPAN
CLASS="APPLICATION"
>postgres</SPAN
></A
>.
</P
></DIV
><DIV
CLASS="REFSECT1"
><A
NAME="AEN87334"
></A
><H2
>Files</H2
><P
></P
><DIV
CLASS="VARIABLELIST"
><DL
><DT
><TT
CLASS="FILENAME"
>postmaster.pid</TT
></DT
><DD
><P
> The existence of this file in the data directory is used to help
<SPAN
CLASS="APPLICATION"
>pg_ctl</SPAN
> determine if the server is
currently running.
</P
></DD
><DT
><TT
CLASS="FILENAME"
>postmaster.opts</TT
></DT
><DD
><P
>If this file exists in the data directory,
<SPAN
CLASS="APPLICATION"
>pg_ctl</SPAN
> (in <TT
CLASS="OPTION"
>restart</TT
> mode)
will pass the contents of the file as options to
<SPAN
CLASS="APPLICATION"
>postgres</SPAN
>, unless overridden
by the <TT
CLASS="OPTION"
>-o</TT
> option. The contents of this file
are also displayed in <TT
CLASS="OPTION"
>status</TT
> mode.
</P
></DD
></DL
></DIV
></DIV
><DIV
CLASS="REFSECT1"
><A
NAME="R1-APP-PGCTL-2"
></A
><H2
>Examples</H2
><DIV
CLASS="REFSECT2"
><A
NAME="R2-APP-PGCTL-3"
></A
><H3
>Starting the Server</H3
><P
> To start the server:
</P><PRE
CLASS="SCREEN"
><SAMP
CLASS="PROMPT"
>$</SAMP
> <KBD
CLASS="USERINPUT"
>pg_ctl start</KBD
></PRE
><P>
</P
><P
> To start the server, waiting until the server is
accepting connections:
</P><PRE
CLASS="SCREEN"
><SAMP
CLASS="PROMPT"
>$</SAMP
> <KBD
CLASS="USERINPUT"
>pg_ctl -w start</KBD
></PRE
><P>
</P
><P
> To start the server using port 5433, and
running without <CODE
CLASS="FUNCTION"
>fsync</CODE
>, use:
</P><PRE
CLASS="SCREEN"
><SAMP
CLASS="PROMPT"
>$</SAMP
> <KBD
CLASS="USERINPUT"
>pg_ctl -o "-F -p 5433" start</KBD
></PRE
><P></P
></DIV
><DIV
CLASS="REFSECT2"
><A
NAME="R2-APP-PGCTL-4"
></A
><H3
>Stopping the Server</H3
><P
> To stop the server, use:
</P><PRE
CLASS="SCREEN"
><SAMP
CLASS="PROMPT"
>$</SAMP
> <KBD
CLASS="USERINPUT"
>pg_ctl stop</KBD
></PRE
><P>
The <TT
CLASS="OPTION"
>-m</TT
> option allows control over
<SPAN
CLASS="emphasis"
><I
CLASS="EMPHASIS"
>how</I
></SPAN
> the server shuts down:
</P><PRE
CLASS="SCREEN"
><SAMP
CLASS="PROMPT"
>$</SAMP
> <KBD
CLASS="USERINPUT"
>pg_ctl stop -m fast</KBD
></PRE
><P></P
></DIV
><DIV
CLASS="REFSECT2"
><A
NAME="R2-APP-PGCTL-5"
></A
><H3
>Restarting the Server</H3
><P
> Restarting the server is almost equivalent to stopping the
server and starting it again,
except that <TT
CLASS="COMMAND"
>pg_ctl</TT
> saves and reuses the command line options that
were passed to the previously running instance. To restart
the server in the simplest form, use:
</P><PRE
CLASS="SCREEN"
><SAMP
CLASS="PROMPT"
>$</SAMP
> <KBD
CLASS="USERINPUT"
>pg_ctl restart</KBD
></PRE
><P>
</P
><P
> To restart the server,
waiting for it to shut down and restart:
</P><PRE
CLASS="SCREEN"
><SAMP
CLASS="PROMPT"
>$</SAMP
> <KBD
CLASS="USERINPUT"
>pg_ctl -w restart</KBD
></PRE
><P>
</P
><P
> To restart using port 5433, disabling <CODE
CLASS="FUNCTION"
>fsync</CODE
> upon restart:
</P><PRE
CLASS="SCREEN"
><SAMP
CLASS="PROMPT"
>$</SAMP
> <KBD
CLASS="USERINPUT"
>pg_ctl -o "-F -p 5433" restart</KBD
></PRE
><P></P
></DIV
><DIV
CLASS="REFSECT2"
><A
NAME="R2-APP-PGCTL-6"
></A
><H3
>Showing the Server Status</H3
><P
> Here is sample status output from
<SPAN
CLASS="APPLICATION"
>pg_ctl</SPAN
>:
</P><PRE
CLASS="SCREEN"
><SAMP
CLASS="PROMPT"
>$</SAMP
> <KBD
CLASS="USERINPUT"
>pg_ctl status</KBD
>
<SAMP
CLASS="COMPUTEROUTPUT"
>pg_ctl: server is running (PID: 13718)
/usr/local/pgsql/bin/postgres "-D" "/usr/local/pgsql/data" "-p" "5433" "-B" "128"</SAMP
></PRE
><P>
This is the command line that would be invoked in restart mode.
</P
></DIV
></DIV
><DIV
CLASS="REFSECT1"
><A
NAME="AEN87405"
></A
><H2
>See Also</H2
><A
HREF="app-initdb.html"
>initdb</A
>, <A
HREF="app-postgres.html"
><SPAN
CLASS="APPLICATION"
>postgres</SPAN
></A
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