Add 'reload' option to pg_ctl to send SIGHUP to the postmaster.
This commit is contained in:
Tom Lane
parent
c1c888a9de
commit
196700c372
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@ -1,4 +1,4 @@
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<!-- $Header: /cvsroot/pgsql/doc/src/sgml/client-auth.sgml,v 1.20 2001/09/21 20:31:41 tgl Exp $ -->
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<!-- $Header: /cvsroot/pgsql/doc/src/sgml/client-auth.sgml,v 1.21 2001/09/21 21:10:56 tgl Exp $ -->
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<chapter id="client-authentication">
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<title>Client Authentication</title>
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@ -333,9 +333,10 @@ hostssl <replaceable>database</replaceable> <replaceable>IP-address</replaceable
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<para>
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The <filename>pg_hba.conf</filename> file is loaded only on startup
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and when the <application>postmaster</> receives a <systemitem>SIGHUP</systemitem> signal. If
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you edit the file on an active system, you will need to issue a
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<systemitem>SIGHUP</systemitem> to the <application>postmaster</> using <application>kill</>
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and when the <application>postmaster</> receives a
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<systemitem>SIGHUP</systemitem> signal. If you edit the file on an
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active system, you will need to signal the <application>postmaster</>
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(using <application>pg_ctl reload</> or <application>kill -HUP</>)
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to make it re-read the file.
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</para>
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@ -1,5 +1,5 @@
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<!--
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$Header: /cvsroot/pgsql/doc/src/sgml/ref/pg_ctl-ref.sgml,v 1.8 2001/09/03 12:57:50 petere Exp $
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$Header: /cvsroot/pgsql/doc/src/sgml/ref/pg_ctl-ref.sgml,v 1.9 2001/09/21 21:10:56 tgl Exp $
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Postgres documentation
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-->
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@ -58,6 +58,11 @@ Postgres documentation
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<arg>-o <replaceable>options</replaceable></arg>
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<sbr>
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<command>pg_ctl</command>
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<arg choice="plain">reload</arg>
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<arg>-s</arg>
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<arg>-D <replaceable>datadir</replaceable></arg>
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<sbr>
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<command>pg_ctl</command>
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<arg choice="plain">status</arg>
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<arg>-D <replaceable>datadir</replaceable></arg>
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</cmdsynopsis>
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@ -73,7 +78,7 @@ Postgres documentation
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the status of a running postmaster. Although the postmaster can be
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started manually, <application>pg_ctl</application> encapulates
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tasks such as redirecting log output, properly detaching from the
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terminal and process group, and additionally provides an option for
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terminal and process group, and it provides convenient options for
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controlled shut down.
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</para>
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@ -93,7 +98,7 @@ Postgres documentation
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</para>
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<para>
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In <option>stop</option> mode, the postmaster that is running on
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In <option>stop</option> mode, the postmaster that is running in
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the specified data directory is shut down. Three different
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shutdown methods can be selected with the <option>-m</option>
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option: <quote>Smart</quote> mode waits for all the clients to
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@ -101,7 +106,6 @@ Postgres documentation
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not wait for clients to disconnect. All active transactions will
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be rolled back. <quote>Immediate</quote> mode will abort without
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complete shutdown. This will lead to a recovery run on restart.
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By the default, stop mode waits for the shutdown to complete.
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</para>
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<para>
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@ -110,6 +114,14 @@ Postgres documentation
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options.
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</para>
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<para>
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<option>reload</option> mode simply sends the postmaster a SIGHUP signal,
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causing it to reread its configuration files
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(<filename>postgresql.conf</filename>, <filename>pg_hba.conf</filename>,
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etc). This allows changing of configuration-file options that do not
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require a complete restart to take effect.
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</para>
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<para>
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<option>status</option> mode checks whether a postmaster is running
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and if so displays the <acronym>PID</acronym> and the command line
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@ -188,7 +200,7 @@ Postgres documentation
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<term>-w</term>
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<listitem>
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<para>
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Wait for the start or stutdown to complete. Times out after
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Wait for the start or shutdown to complete. Times out after
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60 seconds. This is the default for shutdowns.
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</para>
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</listitem>
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@ -2,26 +2,27 @@
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#-------------------------------------------------------------------------
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#
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# pg_ctl.sh--
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# Start/Stop/Restart/Report status of postmaster
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# Start/Stop/Restart/HUP/Report status of postmaster
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#
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# Copyright (c) 2001 PostgreSQL Global Development Group
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#
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#
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# IDENTIFICATION
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# $Header: /cvsroot/pgsql/src/bin/pg_ctl/Attic/pg_ctl.sh,v 1.23 2001/07/11 19:36:41 momjian Exp $
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# $Header: /cvsroot/pgsql/src/bin/pg_ctl/Attic/pg_ctl.sh,v 1.24 2001/09/21 21:10:56 tgl Exp $
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#
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#-------------------------------------------------------------------------
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CMDNAME=`basename $0`
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help="\
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$CMDNAME is a utility to start, stop, restart, and report the status
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of a PostgreSQL server.
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$CMDNAME is a utility to start, stop, restart, reload configuration files,
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or report the status of a PostgreSQL server.
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Usage:
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$CMDNAME start [-w] [-D DATADIR] [-s] [-l FILENAME] [-o \"OPTIONS\"]
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$CMDNAME stop [-W] [-D DATADIR] [-s] [-m SHUTDOWN-MODE]
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$CMDNAME restart [-w] [-D DATADIR] [-s] [-m SHUTDOWN-MODE] [-o \"OPTIONS\"]
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$CMDNAME reload [-D DATADIR] [-s]
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$CMDNAME status [-D DATADIR]
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Common options:
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@ -174,6 +175,9 @@ do
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restart)
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op="restart"
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;;
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reload)
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op="reload"
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;;
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status)
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op="status"
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;;
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@ -224,6 +228,10 @@ case "$shutdown_mode" in
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;;
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esac
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if [ "$op" = "reload" ];then
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sig="-HUP"
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wait=no
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fi
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DEFPOSTOPTS=$PGDATA/postmaster.opts.default
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POSTOPTSFILE=$PGDATA/postmaster.opts
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@ -247,7 +255,7 @@ if [ "$op" = "status" ];then
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fi
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fi
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if [ "$op" = "stop" -o "$op" = "restart" ];then
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if [ "$op" = "stop" -o "$op" = "restart" -o "$op" = "reload" ];then
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if [ -f $PIDFILE ];then
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PID=`sed -n 1p $PIDFILE`
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if [ $PID -lt 0 ];then
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@ -281,7 +289,12 @@ if [ "$op" = "stop" -o "$op" = "restart" ];then
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done
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$silence_echo echo "done"
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fi
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$silence_echo echo "postmaster successfully shut down"
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if [ "$op" = "reload" ];then
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$silence_echo echo "postmaster successfully signaled"
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else
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$silence_echo echo "postmaster successfully shut down"
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fi
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else # ! -f $PIDFILE
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echo "$CMDNAME: cannot find $PIDFILE" 1>&2
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@ -292,7 +305,7 @@ if [ "$op" = "stop" -o "$op" = "restart" ];then
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exit 1
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fi
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fi
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fi # stop or restart
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fi # stop, restart, reload
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if [ "$op" = "start" -o "$op" = "restart" ];then
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oldpid=""
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