#!/bin/sh
#
##############################
# ctdb: Starts the clustered tdb daemon
#
# chkconfig: - 90 01
#
# description: Starts and stops the clustered tdb daemon
# pidfile: /var/run/ctdbd/ctdbd.pid
#
### BEGIN INIT INFO
# Provides: ctdb
# Required-Start: $network
# Required-Stop: $network
# Default-Stop:
# Default-Start:
# Short-Description: start and stop ctdb service
# Description: initscript for the ctdb service
### END INIT INFO
# Source function library.
if [ -f /etc/init.d/functions ] ; then
. /etc/init.d/functions
elif [ -f /etc/rc.d/init.d/functions ] ; then
. /etc/rc.d/init.d/functions
fi
[ -f /etc/rc.status ] && {
. /etc/rc.status
rc_reset
LC_ALL=en_US.UTF-8
}
# Avoid using root's TMPDIR
unset TMPDIR
[ -z "$CTDB_BASE" ] && {
export CTDB_BASE="/etc/ctdb"
}
. $CTDB_BASE/functions
loadconfig network
loadconfig ctdb
# check networking is up (for redhat)
[ "$NETWORKING" = "no" ] && exit 0
detect_init_style
export CTDB_INIT_STYLE
ctdbd=${CTDBD:-/usr/sbin/ctdbd}
if [ "$CTDB_VALGRIND" = "yes" ]; then
init_style="valgrind"
else
init_style="$CTDB_INIT_STYLE"
fi
build_ctdb_options () {
maybe_set () {
# If the 2nd arg is null then return - don't set anything.
# Else if the 3rd arg is set and it doesn't match the 2nd arg
# then return
[ -z "$2" -o \( -n "$3" -a "$3" != "$2" \) ] && return
val="'$2'"
case "$1" in
--*) sep="=" ;;
-*) sep=" " ;;
esac
# For these options we're only passing a value-less flag.
[ -n "$3" ] && {
val=""
sep=""
}
CTDB_OPTIONS="${CTDB_OPTIONS}${CTDB_OPTIONS:+ }${1}${sep}${val}"
}
[ -z "$CTDB_RECOVERY_LOCK" ] && {
echo "No recovery lock specified. Starting CTDB without split brain prevention"
}
maybe_set "--reclock" "$CTDB_RECOVERY_LOCK"
# build up CTDB_OPTIONS variable from optional parameters
maybe_set "--logfile" "$CTDB_LOGFILE"
maybe_set "--nlist" "$CTDB_NODES"
maybe_set "--socket" "$CTDB_SOCKET"
maybe_set "--public-addresses" "$CTDB_PUBLIC_ADDRESSES"
maybe_set "--public-interface" "$CTDB_PUBLIC_INTERFACE"
maybe_set "--dbdir" "$CTDB_DBDIR"
maybe_set "--dbdir-persistent" "$CTDB_DBDIR_PERSISTENT"
maybe_set "--event-script-dir" "$CTDB_EVENT_SCRIPT_DIR"
maybe_set "--transport" "$CTDB_TRANSPORT"
maybe_set "-d" "$CTDB_DEBUGLEVEL"
maybe_set "--notification-script" "$CTDB_NOTIFY_SCRIPT"
maybe_set "--start-as-disabled" "$CTDB_START_AS_DISABLED" "yes"
maybe_set "--start-as-stopped " "$CTDB_START_AS_STOPPED" "yes"
maybe_set "--no-recmaster" "$CTDB_CAPABILITY_RECMASTER" "no"
maybe_set "--no-lmaster" "$CTDB_CAPABILITY_LMASTER" "no"
maybe_set "--lvs --single-public-ip" "$CTDB_LVS_PUBLIC_IP"
maybe_set "--script-log-level" "$CTDB_SCRIPT_LOG_LEVEL"
maybe_set "--log-ringbuf-size" "$CTDB_LOG_RINGBUF_SIZE"
maybe_set "--syslog" "$CTDB_SYSLOG" "yes"
maybe_set "--max-persistent-check-errors" "$CTDB_MAX_PERSISTENT_CHECK_ERRORS"
}
check_tdb () {
local PDBASE=$1
local TDBTOOL_HAS_CHECK=`echo "help" | /usr/bin/tdbtool | grep check | wc -l`
test x"$TDBTOOL_HAS_CHECK" = x"1" && {
#
# Note tdbtool always exits with 0
#
local OK=`/usr/bin/tdbtool $PDBASE check | grep "Database integrity is OK" | wc -l`
test x"$OK" = x"1" || {
return 1;
}
return 0;
}
/usr/bin/tdbdump $PDBASE >/dev/null 2>/dev/null || {
return $?;
}
return 0;
}
check_persistent_databases () {
PERSISTENT_DB_DIR="${CTDB_DBDIR:-/var/ctdb}/persistent"
mkdir -p $PERSISTENT_DB_DIR 2>/dev/null
local ERRCOUNT=$CTDB_MAX_PERSISTENT_CHECK_ERRORS
test -z "$ERRCOUNT" && {
ERRCOUNT="0"
}
test x"$ERRCOUNT" != x"0" && {
return 0;
}
for PDBASE in `ls $PERSISTENT_DB_DIR/*.tdb.[0-9] 2>/dev/null`; do
check_tdb $PDBASE || {
echo "Persistent database $PDBASE is corrupted! CTDB will not start."
return 1
}
done
}
set_ctdb_variables () {
# set any tunables from the config file
set | grep ^CTDB_SET_ | cut -d_ -f3- |
while read v; do
varname=`echo $v | cut -d= -f1`
value=`echo $v | cut -d= -f2`
ctdb setvar $varname $value || RETVAL=1
done || exit 1
}
set_retval() {
return $1
}
ctdbd=${CTDBD:-/usr/sbin/ctdbd}
start() {
echo -n $"Starting ctdbd service: "
ctdb ping >/dev/null 2>&1 && {
echo $"CTDB is already running"
return 0
}
build_ctdb_options
check_persistent_databases || return $?
if [ "$CTDB_SUPPRESS_COREFILE" = "yes" ]; then
ulimit -c 0
else
ulimit -c unlimited
fi
case $init_style in
valgrind)
eval valgrind -q --log-file=/var/log/ctdb_valgrind \
$ctdbd --valgrinding "$CTDB_OPTIONS"
RETVAL=$?
echo
;;
suse)
eval startproc $ctdbd "$CTDB_OPTIONS"
rc_status -v
RETVAL=$?
;;
redhat)
eval $ctdbd "$CTDB_OPTIONS"
RETVAL=$?
[ $RETVAL -eq 0 ] && success || failure
echo
[ $RETVAL -eq 0 ] && touch /var/lock/subsys/ctdb || RETVAL=1
;;
debian)
eval start-stop-daemon --start --quiet --background \
--exec $ctdbd -- "$CTDB_OPTIONS"
RETVAL=$?
;;
esac
sleep 1
set_ctdb_variables
return $RETVAL
}
stop() {
echo -n $"Shutting down ctdbd service: "
pkill -0 -f $ctdbd || {
echo -n " Warning: ctdbd not running ! "
case $init_style in
suse)
rc_status -v
;;
redhat)
echo ""
;;
esac
return 0
}
ctdb shutdown >/dev/null 2>&1
RETVAL=$?
count=0
while pkill -0 -f $ctdbd ; do
sleep 1
count=$(($count + 1))
[ $count -gt 10 ] && {
echo -n $"killing ctdbd "
pkill -9 -f $ctdbd
pkill -9 -f $CTDB_BASE/events.d/
}
done
case $init_style in
suse)
# re-set the return code to the recorded RETVAL in order
# to print the correct status message
set_retval $RETVAL
rc_status -v
;;
redhat)
[ $RETVAL -eq 0 ] && success || failure
[ $RETVAL -eq 0 ] && rm -f /var/lock/subsys/ctdb
echo ""
;;
esac
return $RETVAL
}
restart() {
stop
start
}
status() {
echo -n $"Checking for ctdbd service: "
ctdb ping >/dev/null 2>&1 || {
RETVAL=$?
echo -n " ctdbd not running. "
case $init_style in
suse)
set_retval $RETVAL
rc_status -v
;;
redhat)
if [ -f /var/lock/subsys/ctdb ]; then
echo $"ctdb dead but subsys locked"
RETVAL=2
else
echo $"ctdb is stopped"
RETVAL=3
fi
;;
esac
return $RETVAL
}
echo ""
ctdb status
}
case "$1" in
start)
start
;;
stop)
stop
;;
restart|reload|force-reload)
restart
;;
status)
status
;;
condrestart|try-restart)
ctdb status > /dev/null && restart || :
;;
cron)
# used from cron to auto-restart ctdb
ctdb status > /dev/null || restart
;;
*)
echo $"Usage: $0 {start|stop|restart|reload|force-reload|status|cron|condrestart|try-restart}"
exit 1
esac
exit $?
