Re: Cannot Start Postgres After System Boot

[Rich Shepard <rshepard@xxxxxxxxxxxxxxx>]

On Thu, 21 Oct 2010, Andrej wrote:

> Please do  - provide the section, I mean.

Andrej,

  The entire script is attached. It's only 2588 bytes.

  Also, when there is no postmaster.pid or .s.PGSQL.5432 (and its lock file)
are these recreated automagically when postgres is properly loaded, or do I
need to do something first?

Many thanks,

Rich

#!/bin/bash

# PostgreSQL startup script for Slackware Linux
# Copyright 2007 Adis Nezirovic <adis _at_ linux.org.ba>
# Licensed under GNU GPL v2

# Do not source this script (since it contains exit() calls)

# Before you can run postgresql you'll need to create the
# database files in /var/lib/pgsql. The following should do
# the trick.
#
#   $ su postgres -c "initdb -D /var/lib/pgsql/data"
#

LOGFILE=/var/log/postgresql
DATADIR=/var/lib/pgsql/data
POSTGRES=/usr/bin/postgres
PIDFILE=postmaster.pid

# Return values (according to LSB):
# 0 - success
# 1 - generic or unspecified error
# 2 - invalid or excess argument(s)
# 3 - unimplemented feature (e.g. "reload")
# 4 - insufficient privilege
# 5 - program is not installed
# 6 - program is not configured
# 7 - program is not running

pg_ctl()
{
	CMD="/usr/bin/pg_ctl $@"
	su - postgres -c "$CMD"
}

if [ ! -f $POSTGRES ]; then
	echo "Could not find 'postgres' binary. Maybe PostgreSQL is not installed properly?"
	exit 5
fi

case "$1" in

	"start")
		echo "Starting PostgreSQL"
		touch $LOGFILE
		chown postgres:wheel $LOGFILE
		chmod 0640 $LOGFILE
	
		if [ ! -e $DATADIR/PG_VERSION ]; then
			echo "You should initialize the PostgreSQL database at location $DATADIR"
			exit 6
		fi
	
		if pgrep postgres; then

			echo "PostgreSQL daemon already running"
			if [ ! -f $DATADIR/$PIDFILE ]; then
				echo "Warning: Missing pid file $DATADIR/$PIDFILE"
			fi
			exit 1

		else # remove old socket, if it exists and no daemon is running.

			if [ ! -f $DATADIR/$PIDFILE ]; then
				rm -f /tmp/.s.PGSQL.5432
				rm -f /tmp/.s.PGSQL.5432.lock
				# pg_ctl start -w -l $LOGFILE -D $DATADIR
				su postgres -c 'postgres -D /var/lib/pgsql/data &'
				exit 0
			else
				echo "PostgreSQL daemon was not properly shut down"
				echo "Please remove stale pid file $DATADIR/$PIDFILE"
				exit 7
			fi

		fi	
	;;

	"stop")
		echo "Shutting down PostgreSQL..."
		pg_ctl stop -l $LOGFILE -D $DATADIR -m smart
	;;

	"restart")
		echo "Restarting PostgreSQL..."
		pg_ctl restart -l $LOGFILE -D $DATADIR -m smart
	;;

	"reload")
		echo "Reloading configuration for PostgreSQL..."
		pg_ctl reload -l $LOGFILE -D $DATADIR -m smart
	;;

	"status")
		if pgrep postgres; then
			echo "PostgreSQL is running"

			if [ ! -e $DATADIR/$PIDFILE ]; then
				echo "Warning: Missing pid file $DATADIR/$PIDFILE"
			fi

			exit 0
		else
			echo "PostgreSQL is stopped"

			if [ -e $DATADIR/$PIDFILE ]; then
				echo "Detected stale pid file $DATADIR/$PIDFILE"
			fi

			exit 0
		fi
	;;

	*)
		echo "Usage: $0 {start|stop|status|restart|reload}"
		exit 1
	;;
esac	

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