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#!/sbin/runscript
# Copyright 1999-2011 Pavel Stratil, senbonzakura.eu
# Some functions were taken from debian init script. Licensed under GPL-2
# Distributed under the terms of the GNU General Public License v2
# $Id$
#########################
### Construct vars ######
#########################
SUFFIX=".${SVCNAME#*.}"
[ "${SUFFIX}" == ".drizzled" ] && SUFFIX=''
BASE_CNF="/etc/drizzle/drizzled"
BASE_PID="/var/run/drizzle/drizzled"
BASE_LOG="/var/log/drizzle/drizzled"
BASE_DIR="/var/lib/drizzle/drizzled"
PIDFILE="${BASE_PID}${SUFFIX}.pid"
CNFFILE="${BASE_CNF}${SUFFIX}.cnf"
LOGFILE="${BASE_LOG}${SUFFIX}.log"
DATADIR="${BASE_DIR}${SUFFIX}"
DRIZZLE="/usr/bin/drizzle"
DRIZZLE_USER="drizzle"
DRIZZLE_DAEMON="/usr/sbin/drizzled"
DRIZZLE_EXTRA=""
#########################
### Helper functions ####
#########################
#
# drizzle_status() checks if there is a server running and if it is accessible.
# "check_alive" insists on a pingable server, "check_dead" also fails
# if there is a lost drizzled in the process list
# Usage: boolean drizzle_status [check_alive|check_dead] [warn|nowarn]
#
drizzle_status() {
ping_output=`$DRIZZLE --ping 2>&1`; ping_alive=$(( ! $? ))
ps_alive=0
if [ -f "$PIDFILE" ] && ps `cat $PIDFILE` >/dev/null 2>&1; then ps_alive=1; fi
if [ "$1" = "check_alive" -a $ping_alive = 1 ] ||
[ "$1" = "check_dead" -a $ping_alive = 0 -a $ps_alive = 0 ]; then
return 0 # EXIT_SUCCESS
else
if [ "$2" = "warn" ]; then
echo -e "$ps_alive processes alive and '$DRIZZLE --ping' resulted in\n$ping_output\n"
fi
return 1 # EXIT_FAILURE
fi
}
#########################
### Main ################
#########################
checkconfig() {
# TODO: --print-defaults no longer a valid option. Needs to be rewritten.
#CNFDATADIR=`drizzle_get_param datadir`
#if [ -z "${CNFDATADIR}" ] ; then
# ewarn "Datadir not set in ${CNFFILE}."
# ewarn "Trying to use ${DATADIR}"
#else
DATADIR="${CNFDATADIR}"
#fi
if [[ ! -d "${DATADIR}" ]] ; then
eerror "Drizzle datadir is empty or invalid."
eerror "Please check your configuration ${CNFFILE} and DRIZZLE_EXTRA"
return 1
fi
if [ ! -f "${CNFFILE}" ]; then
eerror "The configuration file $CNFFILE was not found!"
fi
}
depend() {
use localmount
use gearmand
use memcached
# TODO use drizzle_get_param() to decide if gearmand and memcached
# are needed. Then the useflag based sed-ing of this script
# can be removed from the ebuild.
}
stop() {
ebegin "Stopping ${SVCNAME}"
start-stop-daemon --pidfile ${PIDFILE} --stop \
--exec ${DRIZZLE_DAEMON}
eend $?
drizzle_status check_dead warn
}
start() {
#checkconfig
ebegin "Starting ${SVCNAME}"
# Test if ${BASE_PID}, ${BASE_LOG} and ${LOG_FILE} exist, create if not.
[ ! -e ${BASE_PID} ] && mkdir -p ${BASE_PID} && chown ${DRIZZLE_USER}:nogroup ${BASE_PID}
[ ! -e ${BASE_LOG} ] && mkdir -p ${BASE_LOG} && chown ${DRIZZLE_USER}:nogroup ${BASE_LOG}
[ ! -e ${LOGFILE} ] && touch ${LOGFILE} && chown ${DRIZZLE_USER}:nogroup ${LOGFILE}
start-stop-daemon --background --pidfile ${PIDFILE} --stderr ${LOGFILE} \
--user ${DRIZZLE_USER} --start --exec ${DRIZZLE_DAEMON} -- \
--datadir=${DATADIR} --pid-file=${PIDFILE} --user=${DRIZZLE_USER} \
${DRIZZLE_EXTRA}
eend $?
# TODO in order to have replication always working we should add the
# --server-id=# option. AFAIK only integers are allowed, though
# ${HOSTNAME}${SVCNAME}${SUFFIX} whould be much easier to handle.
for i in 1 2 3 4 5 6 7 8 9 10 11 12 13 14; do
sleep 1
if drizzle_status check_alive nowarn ; then break ; fi
done
if drizzle_status check_alive warn ; then
einfo "${SVCNAME} is alive!"
else
eerror "${SVCNAME} died!"
fi
}
status() {
if drizzle_status check_alive nowarn; then
einfo "status: started"
else
einfo "status: stopped"
fi
}
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