299 lines
7.4 KiB
Bash
299 lines
7.4 KiB
Bash
#!/bin/sh
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# postgresql This is the init script for starting up the PostgreSQL
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# server
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#
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# chkconfig: - 64 36
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# description: Starts and stops the PostgreSQL backend daemon that handles \
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# all database requests.
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# processname: postmaster
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# pidfile: /var/run/postmaster.pid
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# Version 6.5.3-2 Lamar Owen
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# Added code to determine if PGDATA exists, whether it is current version
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# or not, and initdb if no PGDATA (initdb will not overwrite a database).
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# Version 7.0 Lamar Owen
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# Added logging code
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# Changed PGDATA.
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# Version 7.0.2 Trond Eivind Glomsrd <teg@redhat.com>
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# use functions, add conditional restart
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# Version 7.0.3 Lamar Owen <lamar@postgresql.org>
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# Check for the existence of functions before blindly using them
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# in particular -- check for success () and failure () before using.
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# More Cross-distribution support -- PGVERSION variable, and docdir checks.
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# Version 7.1 Release Candidate Lamar Owen <lamar@postgresql.org>
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# initdb parameters have changed.
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# Version 7.1.2 Trond Eivind Glomsrd <teg@redhat.com>
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# Specify shell for su
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# Handle stop better - kill unwanted output, make it wait until the database is ready
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# Handle locales slightly differently - always using "C" isn't a valid option
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# Kill output from database initialization
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# Mark messages for translation
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# Version 7.1.2-2.PGDG Lamar Owen <lamar.owen@wgcr.org>
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# sync up.
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# Karl's fixes for some quoting issues.
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# Version 7.2b2 Lamar Owen <lamar.owen@wgcr.org>
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# version change.
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# Version 7.2 final. Lamar Owen <lamar.owen@wgcr.org>
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# reload from Peter E.
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# Eliminate the pidof postmaster test in stop -- we're using pg_ctl so we don't need pidof.
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# Tested the $? return for the stop script -- it does in fact propagate.
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# TODO: multiple postmasters.
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# Version 7.3 Lamar Owen <lamar.owen@ramifordistat.net>
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# Multiple postmasters, courtesy Karl DeBisschop
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# Version 7.4 Lamar Owen.
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# Version 7.4.3 Tom Lane <tgl@sss.pgh.pa.us>
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# Support condstop for uninstall
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# Minor other changes suggested by Fernando Nasser.
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# Version 7.4.5 Tom Lane <tgl@sss.pgh.pa.us>
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# Rewrite to start postmaster directly, rather than via pg_ctl; this avoids
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# fooling the postmaster's stale-lockfile check by having too many
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# postgres-owned processes laying about.
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# Version 8.1 Devrim Gunduz <devrim@PostgreSQL.org>
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# Increased sleep time from 1 sec to 2 sec.
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# Version 8.2 Devrim Gunduz <devrim@CommandPrompt.com>
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# Set initdb as a seperate option.
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# PGVERSION is the full package version, e.g., 8.2.0
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# Note: the specfile ordinarily updates this during install
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PGVERSION=xxxx
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# PGMAJORVERSION is major version, e.g., 8.2 (this should match PG_VERSION)
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PGMAJORVERSION=`echo "$PGVERSION" | sed 's/^\([0-9]*\.[0-9]*\).*$/\1/'`
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# Source function library.
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. /etc/rc.d/init.d/functions
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# Get function listing for cross-distribution logic.
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TYPESET=`typeset -f|grep "declare"`
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# Get config.
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. /etc/sysconfig/network
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# Find the name of the script
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NAME=`basename $0`
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if [ ${NAME:0:1} = "S" -o ${NAME:0:1} = "K" ]
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then
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NAME=${NAME:3}
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fi
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# For SELinux we need to use 'runuser' not 'su'
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if [ -x /sbin/runuser ]
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then
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SU=runuser
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else
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SU=su
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fi
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# Set defaults for configuration variables
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PGENGINE=/usr/bin
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PGPORT=5432
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PGDATA=/var/lib/pgsql
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if [ -f "$PGDATA/PG_VERSION" ] && [ -d "$PGDATA/base/template1" ]
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then
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echo "Using old-style directory structure"
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else
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PGDATA=/var/lib/pgsql/data
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fi
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PGLOG=/var/lib/pgsql/pgstartup.log
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# Override defaults from /etc/sysconfig/pgsql if file is present
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[ -f /etc/sysconfig/pgsql/${NAME} ] && . /etc/sysconfig/pgsql/${NAME}
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export PGDATA
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export PGPORT
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# Check that networking is up.
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# Pretty much need it for postmaster.
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[ "${NETWORKING}" = "no" ] && exit 0
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[ -f "$PGENGINE/postmaster" ] || exit 1
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script_result=0
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start(){
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PSQL_START=$"Starting ${NAME} service: "
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# Make sure startup-time log file is valid
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if [ ! -e "$PGLOG" -a ! -h "$PGLOG" ]
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then
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touch "$PGLOG" || exit 1
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chown postgres:postgres "$PGLOG"
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chmod go-rwx "$PGLOG"
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[ -x /usr/bin/chcon ] && /usr/bin/chcon -u system_u -r object_r -t postgresql_log_t "$PGLOG" 2>/dev/null
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fi
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# Check for the PGDATA structure
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if [ -f "$PGDATA/PG_VERSION" ] && [ -d "$PGDATA/base" ]
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then
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# Check version of existing PGDATA
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if [ x`cat "$PGDATA/PG_VERSION"` != x"$PGMAJORVERSION" ]
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then
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SYSDOCDIR="(Your System's documentation directory)"
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if [ -d "/usr/doc/postgresql-$PGVERSION" ]
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then
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SYSDOCDIR=/usr/doc
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fi
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if [ -d "/usr/share/doc/postgresql-$PGVERSION" ]
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then
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SYSDOCDIR=/usr/share/doc
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fi
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if [ -d "/usr/doc/packages/postgresql-$PGVERSION" ]
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then
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SYSDOCDIR=/usr/doc/packages
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fi
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if [ -d "/usr/share/doc/packages/postgresql-$PGVERSION" ]
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then
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SYSDOCDIR=/usr/share/doc/packages
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fi
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echo
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echo $"An old version of the database format was found."
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echo $"You need to upgrade the data format before using PostgreSQL."
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echo $"See $SYSDOCDIR/postgresql-$PGVERSION/README.rpm-dist for more information."
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exit 1
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fi
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# No existing PGDATA! Warn the user to initdb it.
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else
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echo
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echo "$PGDATA is missing. Use \"service postgresql initdb\" to initialize the cluster first."
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echo_failure
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echo
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exit 1
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fi
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echo -n "$PSQL_START"
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$SU -l postgres -c "$PGENGINE/postmaster -p '$PGPORT' -D '$PGDATA' ${PGOPTS} &" >> "$PGLOG" 2>&1 < /dev/null
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sleep 2
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pid=`pidof -s "$PGENGINE/postmaster"`
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if [ $pid ] && [ -f "$PGDATA/postmaster.pid" ]
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then
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success "$PSQL_START"
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touch /var/lock/subsys/${NAME}
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head -n 1 "$PGDATA/postmaster.pid" > "/var/run/postmaster.${PGPORT}.pid"
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echo
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else
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failure "$PSQL_START"
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echo
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script_result=1
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fi
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}
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stop(){
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echo -n $"Stopping ${NAME} service: "
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$SU -l postgres -c "$PGENGINE/pg_ctl stop -D '$PGDATA' -s -m fast" > /dev/null 2>&1 < /dev/null
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ret=$?
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if [ $ret -eq 0 ]
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then
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echo_success
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else
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echo_failure
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script_result=1
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fi
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echo
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rm -f "/var/run/postmaster.${PGPORT}.pid"
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rm -f "/var/lock/subsys/${NAME}"
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}
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restart(){
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stop
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start
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}
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condrestart(){
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[ -e /var/lock/subsys/${NAME} ] && restart
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}
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condstop(){
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[ -e /var/lock/subsys/${NAME} ] && stop
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}
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reload(){
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$SU -l postgres -c "$PGENGINE/pg_ctl reload -D '$PGDATA' -s" > /dev/null 2>&1 < /dev/null
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}
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initdb(){
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if [ -f "$PGDATA/PG_VERSION" ]
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then
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echo "Data directory is not empty!"
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echo_failure
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script_result=1
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else
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echo -n $"Initializing database: "
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if [ ! -e "$PGDATA" -a ! -h "$PGDATA" ]
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then
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mkdir -p "$PGDATA" || exit 1
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chown postgres:postgres "$PGDATA"
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chmod go-rwx "$PGDATA"
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fi
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# Clean up SELinux tagging for PGDATA
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[ -x /sbin/restorecon ] && /sbin/restorecon "$PGDATA"
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# Initialize the database
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$SU -l postgres -c "$PGENGINE/initdb --pgdata='$PGDATA' --auth='ident sameuser'" >> "$PGLOG" 2>&1 < /dev/null
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# Create directory for postmaster log
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mkdir "$PGDATA/pg_log"
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chown postgres:postgres "$PGDATA/pg_log"
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chmod go-rwx "$PGDATA/pg_log"
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if [ -f "$PGDATA/PG_VERSION" ]
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then
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echo_success
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else
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echo_failure
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script_result=1
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fi
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fi
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}
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# This script is slightly unusual in that the name of the daemon (postmaster)
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# is not the same as the name of the subsystem (postgresql)
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# See how we were called.
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case "$1" in
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start)
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start
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;;
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stop)
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stop
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;;
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status)
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status postmaster
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script_result=$?
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;;
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restart)
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restart
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;;
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condrestart)
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condrestart
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;;
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condstop)
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condstop
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;;
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reload|force-reload)
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reload
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;;
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initdb)
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initdb
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;;
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*)
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echo $"Usage: $0 {start|stop|status|restart|condrestart|condstop|reload|force-reload|initdb}"
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exit 1
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esac
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exit $script_result
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