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|
#! /bin/bash
#include <genscript.warning>
set -e
#
# Initialisation
#
# (This should set up values for POSTGRES_HOME and POSTGRES_DATA, which
# say where the library and database are. It should also set up DATEFORMAT
# which governs whether the backend sends back dates in European or
# American format, and the logging options.)
#
# Although Debian policy requires that this file be treated as an
# administrator-alterable conffile, you should NOT treat it as such.
# If you wish to change any values, the proper place to do so is in
# /etc/postgresql/postmaster.conf or /etc/postgresql/postgresql.conf.
#
# To stop postgresql running, use the update-rc.d facility, or file-rc
# if you have that package installed.
check_version () {
# compare the database format with the format expected by the software
dbformat=`cat ${PGDATA}/PG_VERSION 2>/dev/null`
if [ A${dbformat} != A${version} ]
then
if [ -z "${dbformat}" ]
then
echo The database framework has not yet been created. Use
echo initdb to do this.
else
echo The database is in an older format that cannot be read by
echo version ${version} of PostgreSQL.
echo
if [ -f /var/lib/postgres/dumpall/default_encoding ]
then
echo "The postinstallation script should attempt to upgrade the database"
echo "automatically. If it fails, it must be done by hand."
else
echo Run postgresql-dump to dump the old database and to reload
echo it in the new format.
fi
echo "*** READ /usr/share/doc/postgresql/README.Debian.migration.gz FIRST! ***"
fi
echo
echo The version ${version} postmaster cannot be started until
echo this is done.
exit 255
fi
}
obsolete_config () {
echo "
****************** Obsolete configuration files *****************
postmaster.init and pg_options in /etc/postgresql/ are obsolete.
Please update your configuration files by integrating your site-
specific changes with the new format in postmaster.conf and
postgresql.conf and delete or rename the old configuration files.
PostgreSQL cannot be started until you have done this.
*******************************************************************
"
exit 1
}
# Refuse to proceed if the old config files are still there
if [ -f /etc/postgresql/postmaster.init -o -f /etc/postgresql/pg_options ]
then
obsolete_config
exit 1
fi
. /etc/postgresql/postmaster.conf
export LANG PGDATESTYLE
if [ -z "${PGDATESTYLE}" ]
then
PGDATESTYLE=ISO,European
fi
PGDATA="${POSTGRES_DATA:-/var/lib/postgres/data}"
PGLIB=/usr/lib/postgresql
export PGLIB PGDATA
POSTMASTER=${PGLIB}/bin/postmaster
version=%PG_VERSION% # Note: this is not necessarily the same as the
# software version.
# Make sure we have a database directory
if [ ! -d ${PGDATA} ]
then
echo No readable database directory for postgresql
exit 3
fi
if [ ! -d ${PGDATA}/base ]
then
echo There is no PostgreSQL database framework in $PGDATA.
echo Run initdb as the postgres user to create it
exit 3
fi
# First, check that the database is the right version
check_version
# Make sure that we don't try to start if the executable is missing.
if [ ! -x ${POSTMASTER} ]
then
echo No postmaster executable for postgresql
exit 3
fi
OPTIONS="$POSTMASTER_OPTIONS"
if [ -n "$PGPORT" ]
then
OPTIONS="$OPTIONS -p$PGPORT"
fi
if [ -n "$OPTIONS" ]
then
OPTIONS="-o '$OPTIONS'"
fi
# If the socket and the pid file exists, and the process with that pid is
# postmaster, then we are already running and abort. Otherwise these files must
# be left from a previous instance (after a crash), so delete them.
SOCKET="/var/run/postgresql/.s.PGSQL.${PGPORT:=5432}"
PIDFILE="$PGDATA/postmaster.pid"
if [ -f "$PIDFILE" ]; then
pid="`cat $PGDATA/postmaster.pid | head -1`"
fi
if [ "$pid" ] && [ -S "$SOCKET" ] && [ "`ps -o comm h p \"$pid\" 2>/dev/null`" = postmaster ]; then
echo The postmaster is already running
exit 1
elif [ "$pid" ] || [ -e "$SOCKET" ]; then
echo "Removing stale PID file and socket"
rm -f "$PIDFILE" "$SOCKET"
fi
LOG_OPT="-l ${POSTGRES_LOG:=/var/log/postgresql/postgres.log}"
# set locale that is used by the backend
export LANG=`/usr/lib/postgresql/bin/pg_controldata "$PGDATA" | grep LC_CTYPE | cut -f 2 -d: | awk '{print $1}'`
export LC_ALL=$LANG
# Ready to go: stand clear...
cd ${POSTGRES_HOME}
eval /usr/lib/postgresql/bin/pg_ctl start -s -D ${PGDATA} ${LOG_OPT} ${OPTIONS}
# Give it a chance to get going
sleep 5
# check if postmaster is really running; yell if not
[ -r $PGDATA/postmaster.pid ] && PMPID=`head -n 1 $PGDATA/postmaster.pid` || true
if [ -z "$PMPID" ] || [ "`ps h -o comm -p $PMPID`" != postmaster ]; then
echo "ERROR: PostgreSQL postmaster did not start because of an unknown reason." >&2
cat <<EOF >&2
PostgreSQL's init script (/etc/init.d/postgresql) attempted
to start the postmaster, however, this failed because of an unknown
reason.
This should not happen and is a serious problem. Please examine the
situation (please take a look at the log files). If you know the
reason why it failed and, then please file a bug report to Debian
(unless the reason is something obvious like a full disk).
Debian PostgreSQL
EOF
exit 1
fi
exit 0
|
