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Commit196700c

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Add 'reload' option to pg_ctl to send SIGHUP to the postmaster.
1 parentc1c888a commit196700c

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3 files changed

+42
-16
lines changed

3 files changed

+42
-16
lines changed

‎doc/src/sgml/client-auth.sgml

Lines changed: 5 additions & 4 deletions
Original file line numberDiff line numberDiff line change
@@ -1,4 +1,4 @@
1-
<!-- $Header: /cvsroot/pgsql/doc/src/sgml/client-auth.sgml,v 1.20 2001/09/2120:31:41 tgl Exp $ -->
1+
<!-- $Header: /cvsroot/pgsql/doc/src/sgml/client-auth.sgml,v 1.21 2001/09/2121:10:56 tgl Exp $ -->
22

33
<chapter id="client-authentication">
44
<title>Client Authentication</title>
@@ -333,9 +333,10 @@ hostssl <replaceable>database</replaceable> <replaceable>IP-address</replaceable
333333

334334
<para>
335335
The <filename>pg_hba.conf</filename> file is loaded only on startup
336-
and when the <application>postmaster</> receives a <systemitem>SIGHUP</systemitem> signal. If
337-
you edit the file on an active system, you will need to issue a
338-
<systemitem>SIGHUP</systemitem> to the <application>postmaster</> using <application>kill</>
336+
and when the <application>postmaster</> receives a
337+
<systemitem>SIGHUP</systemitem> signal. If you edit the file on an
338+
active system, you will need to signal the <application>postmaster</>
339+
(using <application>pg_ctl reload</> or <application>kill -HUP</>)
339340
to make it re-read the file.
340341
</para>
341342

‎doc/src/sgml/ref/pg_ctl-ref.sgml

Lines changed: 17 additions & 5 deletions
Original file line numberDiff line numberDiff line change
@@ -1,5 +1,5 @@
11
<!--
2-
$Header: /cvsroot/pgsql/doc/src/sgml/ref/pg_ctl-ref.sgml,v 1.8 2001/09/03 12:57:50 petere Exp $
2+
$Header: /cvsroot/pgsql/doc/src/sgml/ref/pg_ctl-ref.sgml,v 1.9 2001/09/21 21:10:56 tgl Exp $
33
Postgres documentation
44
-->
55

@@ -58,6 +58,11 @@ Postgres documentation
5858
<arg>-o <replaceable>options</replaceable></arg>
5959
<sbr>
6060
<command>pg_ctl</command>
61+
<arg choice="plain">reload</arg>
62+
<arg>-s</arg>
63+
<arg>-D <replaceable>datadir</replaceable></arg>
64+
<sbr>
65+
<command>pg_ctl</command>
6166
<arg choice="plain">status</arg>
6267
<arg>-D <replaceable>datadir</replaceable></arg>
6368
</cmdsynopsis>
@@ -73,7 +78,7 @@ Postgres documentation
7378
the status of a running postmaster. Although the postmaster can be
7479
started manually, <application>pg_ctl</application> encapulates
7580
tasks such as redirecting log output, properly detaching from the
76-
terminal and process group, andadditionally providesan option for
81+
terminal and process group, andit providesconvenient options for
7782
controlled shut down.
7883
</para>
7984

@@ -93,15 +98,14 @@ Postgres documentation
9398
</para>
9499

95100
<para>
96-
In <option>stop</option> mode, the postmaster that is runningon
101+
In <option>stop</option> mode, the postmaster that is runningin
97102
the specified data directory is shut down. Three different
98103
shutdown methods can be selected with the <option>-m</option>
99104
option: <quote>Smart</quote> mode waits for all the clients to
100105
disconnect. This is the default. <quote>Fast</quote> mode does
101106
not wait for clients to disconnect. All active transactions will
102107
be rolled back. <quote>Immediate</quote> mode will abort without
103108
complete shutdown. This will lead to a recovery run on restart.
104-
By the default, stop mode waits for the shutdown to complete.
105109
</para>
106110

107111
<para>
@@ -110,6 +114,14 @@ Postgres documentation
110114
options.
111115
</para>
112116

117+
<para>
118+
<option>reload</option> mode simply sends the postmaster a SIGHUP signal,
119+
causing it to reread its configuration files
120+
(<filename>postgresql.conf</filename>, <filename>pg_hba.conf</filename>,
121+
etc). This allows changing of configuration-file options that do not
122+
require a complete restart to take effect.
123+
</para>
124+
113125
<para>
114126
<option>status</option> mode checks whether a postmaster is running
115127
and if so displays the <acronym>PID</acronym> and the command line
@@ -188,7 +200,7 @@ Postgres documentation
188200
<term>-w</term>
189201
<listitem>
190202
<para>
191-
Wait for the start orstutdown to complete. Times out after
203+
Wait for the start orshutdown to complete. Times out after
192204
60 seconds. This is the default for shutdowns.
193205
</para>
194206
</listitem>

‎src/bin/pg_ctl/pg_ctl.sh

Lines changed: 20 additions & 7 deletions
Original file line numberDiff line numberDiff line change
@@ -2,26 +2,27 @@
22
#-------------------------------------------------------------------------
33
#
44
# pg_ctl.sh--
5-
# Start/Stop/Restart/Report status of postmaster
5+
# Start/Stop/Restart/HUP/Report status of postmaster
66
#
77
# Copyright (c) 2001 PostgreSQL Global Development Group
88
#
99
#
1010
# IDENTIFICATION
11-
# $Header: /cvsroot/pgsql/src/bin/pg_ctl/Attic/pg_ctl.sh,v 1.23 2001/07/11 19:36:41 momjian Exp $
11+
# $Header: /cvsroot/pgsql/src/bin/pg_ctl/Attic/pg_ctl.sh,v 1.24 2001/09/21 21:10:56 tgl Exp $
1212
#
1313
#-------------------------------------------------------------------------
1414

1515
CMDNAME=`basename$0`
1616

1717
help="\
18-
$CMDNAME is a utility to start, stop, restart,and report the status
19-
of a PostgreSQL server.
18+
$CMDNAME is a utility to start, stop, restart,reload configuration files,
19+
or report the statusof a PostgreSQL server.
2020
2121
Usage:
2222
$CMDNAME start [-w] [-D DATADIR] [-s] [-l FILENAME] [-o\"OPTIONS\"]
2323
$CMDNAME stop [-W] [-D DATADIR] [-s] [-m SHUTDOWN-MODE]
2424
$CMDNAME restart [-w] [-D DATADIR] [-s] [-m SHUTDOWN-MODE] [-o\"OPTIONS\"]
25+
$CMDNAME reload [-D DATADIR] [-s]
2526
$CMDNAME status [-D DATADIR]
2627
2728
Common options:
@@ -174,6 +175,9 @@ do
174175
restart)
175176
op="restart"
176177
;;
178+
reload)
179+
op="reload"
180+
;;
177181
status)
178182
op="status"
179183
;;
@@ -224,6 +228,10 @@ case "$shutdown_mode" in
224228
;;
225229
esac
226230

231+
if ["$op"="reload" ];then
232+
sig="-HUP"
233+
wait=no
234+
fi
227235

228236
DEFPOSTOPTS=$PGDATA/postmaster.opts.default
229237
POSTOPTSFILE=$PGDATA/postmaster.opts
@@ -247,7 +255,7 @@ if [ "$op" = "status" ];then
247255
fi
248256
fi
249257

250-
if ["$op"="stop"-o"$op"="restart" ];then
258+
if ["$op"="stop"-o"$op"="restart"-o"$op"="reload"];then
251259
if [-f$PIDFILE ];then
252260
PID=`sed -n 1p$PIDFILE`
253261
if [$PID-lt 0 ];then
@@ -281,7 +289,12 @@ if [ "$op" = "stop" -o "$op" = "restart" ];then
281289
done
282290
$silence_echoecho"done"
283291
fi
284-
$silence_echoecho"postmaster successfully shut down"
292+
293+
if ["$op"="reload" ];then
294+
$silence_echoecho"postmaster successfully signaled"
295+
else
296+
$silence_echoecho"postmaster successfully shut down"
297+
fi
285298

286299
else# ! -f $PIDFILE
287300
echo"$CMDNAME: cannot find$PIDFILE"1>&2
@@ -292,7 +305,7 @@ if [ "$op" = "stop" -o "$op" = "restart" ];then
292305
exit 1
293306
fi
294307
fi
295-
fi# stop orrestart
308+
fi# stop,restart, reload
296309

297310
if ["$op"="start"-o"$op"="restart" ];then
298311
oldpid=""

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