config/ctdb.init

   1 #!/bin/sh
   2 #
   3 ##############################
   4 # ctdb:                        Starts the clustered tdb daemon
   5 #
   6 # chkconfig:           - 90 01
   7 #
   8 # description:                 Starts and stops the clustered tdb daemon
   9 # pidfile:             /var/run/ctdbd/ctdbd.pid
  10 #
  11
  12 ### BEGIN INIT INFO
  13 # Provides:            ctdb
  14 # Required-Start:      $network
  15 # Required-Stop:       $network
  16 # Default-Stop:
  17 # Default-Start:       3 5
  18 # Short-Description:   start and stop ctdb service
  19 # Description:         initscript for the ctdb service
  20 ### END INIT INFO
  21
  22 # Source function library.
  23 if [ -f /etc/init.d/functions ] ; then
  24     . /etc/init.d/functions
  25 elif [ -f /etc/rc.d/init.d/functions ] ; then
  26     . /etc/rc.d/init.d/functions
  27 fi
  28
  29 [ -f /etc/rc.status ] && {
  30     . /etc/rc.status
  31     rc_reset
  32     LC_ALL=en_US.UTF-8
  33 }
  34
  35 # Avoid using root's TMPDIR
  36 unset TMPDIR
  37
  38 [ -z "$CTDB_BASE" ] && {
  39     export CTDB_BASE="/etc/ctdb"
  40 }
  41
  42 . $CTDB_BASE/functions
  43 loadconfig network
  44 loadconfig ctdb
  45
  46 # check networking is up (for redhat)
  47 [ "$NETWORKING" = "no" ] && exit 0
  48
  49 detect_init_style
  50 export CTDB_INIT_STYLE
  51
  52 ctdbd=${CTDBD:-/usr/sbin/ctdbd}
  53
  54 if [ "$CTDB_VALGRIND" = "yes" ]; then
  55     init_style="valgrind"
  56 else
  57     init_style="$CTDB_INIT_STYLE"
  58 fi
  59
  60 build_ctdb_options () {
  61
  62     maybe_set () {
  63         # If the 2nd arg is null then return - don't set anything.
  64         # Else if the 3rd arg is set and it doesn't match the 2nd arg
  65         # then return
  66         [ -z "$2" -o \( -n "$3" -a "$3" != "$2" \) ] && return
  67
  68         val="$2"
  69         case "$1" in
  70             --*) sep="=" ;;
  71             -*)  sep=" " ;;
  72         esac
  73         # For these options we're only passing a value-less flag.
  74         [ -n "$3" ] && {
  75             val=""
  76             sep=""
  77         }
  78
  79         CTDB_OPTIONS="${CTDB_OPTIONS}${CTDB_OPTIONS:+ }${1}${sep}${val}"
  80     }
  81
  82     [ -z "$CTDB_RECOVERY_LOCK" ] && {
  83         echo "No recovery lock specified. Starting CTDB without split brain prevention"
  84     }
  85     maybe_set "--reclock"                "$CTDB_RECOVERY_LOCK"
  86
  87     # build up CTDB_OPTIONS variable from optional parameters
  88     maybe_set "--logfile"                "$CTDB_LOGFILE"
  89     maybe_set "--nlist"                  "$CTDB_NODES"
  90     maybe_set "--socket"                 "$CTDB_SOCKET"
  91     maybe_set "--public-addresses"       "$CTDB_PUBLIC_ADDRESSES"
  92     maybe_set "--public-interface"       "$CTDB_PUBLIC_INTERFACE"
  93     maybe_set "--dbdir"                  "$CTDB_DBDIR"
  94     maybe_set "--dbdir-persistent"       "$CTDB_DBDIR_PERSISTENT"
  95     maybe_set "--event-script-dir"       "$CTDB_EVENT_SCRIPT_DIR"
  96     maybe_set "--transport"              "$CTDB_TRANSPORT"
  97     maybe_set "-d"                       "$CTDB_DEBUGLEVEL"
  98     maybe_set "--notification-script"    "$CTDB_NOTIFY_SCRIPT"
  99     maybe_set "--start-as-disabled"      "$CTDB_START_AS_DISABLED"    "yes"
 100     maybe_set "--start-as-stopped "      "$CTDB_START_AS_STOPPED"     "yes"
 101     maybe_set "--no-recmaster"           "$CTDB_CAPABILITY_RECMASTER" "no"
 102     maybe_set "--no-lmaster"             "$CTDB_CAPABILITY_LMASTER"   "no"
 103     maybe_set "--lvs --single-public-ip" "$CTDB_LVS_PUBLIC_IP"
 104     maybe_set "--script-log-level"       "$CTDB_SCRIPT_LOG_LEVEL"
 105     maybe_set "--syslog"                 "$CTDB_SYSLOG"               "yes"
 106 }
 107
 108 check_tdb () {
 109         local PDBASE=$1
 110
 111         local TDBTOOL_HAS_CHECK=`echo "help" | /usr/bin/tdbtool | grep check | wc -l`
 112
 113         test x"$TDBTOOL_HAS_CHECK" = x"1" && {
 114                 #
 115                 # Note tdbtool always exits with 0
 116                 #
 117                 local OK=`/usr/bin/tdbtool $PDBASE check | grep "Database integrity is OK" | wc -l`
 118                 test x"$OK" = x"1" || {
 119                         return 1;
 120                 }
 121
 122                 return 0;
 123         }
 124
 125         /usr/bin/tdbdump $PDBASE >/dev/null 2>/dev/null || {
 126                 return $?;
 127         }
 128
 129         return 0;
 130 }
 131
 132 check_persistent_databases () {
 133     PERSISTENT_DB_DIR="${CTDB_DBDIR:-/var/ctdb}/persistent"
 134     mkdir -p $PERSISTENT_DB_DIR 2>/dev/null
 135     for PDBASE in `ls $PERSISTENT_DB_DIR/*.tdb.[0-9] 2>/dev/null`; do
 136         check_tdb $PDBASE || {
 137             echo "Persistent database $PDBASE is corrupted! CTDB will not start."
 138             return 1
 139         }
 140     done
 141 }
 142
 143 set_ctdb_variables () {
 144     # set any tunables from the config file
 145     set | grep ^CTDB_SET_ | cut -d_ -f3- |
 146     while read v; do
 147         varname=`echo $v | cut -d= -f1`
 148         value=`echo $v | cut -d= -f2`
 149         ctdb setvar $varname $value || RETVAL=1
 150     done || exit 1
 151 }
 152
 153 set_retval() {
 154     return $1
 155 }
 156
 157 ctdbd=${CTDBD:-/usr/sbin/ctdbd}
 158
 159 start() {
 160     echo -n $"Starting ctdbd service: "
 161
 162     ctdb ping >/dev/null 2>&1 && {
 163         echo $"CTDB is already running"
 164         return 1
 165     }
 166
 167     build_ctdb_options
 168
 169     check_persistent_databases || return $?
 170
 171     if [ yes == "$CTDB_SUPPRESS_COREFILE" ]; then
 172         ulimit -c 0
 173     else
 174         ulimit -c unlimited
 175     fi
 176
 177     case $init_style in
 178         valgrind)
 179             valgrind -q --log-file=/var/log/ctdb_valgrind \
 180                 $ctdbd --nosetsched $CTDB_OPTIONS
 181             RETVAL=$?
 182             echo
 183             ;;
 184         suse)
 185             startproc $ctdbd $CTDB_OPTIONS
 186             rc_status -v
 187             RETVAL=$?
 188             ;;
 189         redhat)
 190             daemon $ctdbd $CTDB_OPTIONS
 191             RETVAL=$?
 192             echo
 193             [ $RETVAL -eq 0 ] && touch /var/lock/subsys/ctdb || RETVAL=1
 194             ;;
 195         debian)
 196             start-stop-daemon --start --quiet --background \
 197                 --exec $ctdbd -- $CTDB_OPTIONS
 198             RETVAL=$?
 199             ;;
 200     esac
 201
 202     sleep 1
 203
 204     set_ctdb_variables
 205
 206     return $RETVAL
 207 }
 208
 209 stop() {
 210     echo -n $"Shutting down ctdbd service: "
 211     pkill -0 -f $ctdbd || {
 212         echo -n "  Warning: ctdbd not running ! "
 213         case $init_style in
 214             suse)
 215                 rc_status -v
 216                 ;;
 217             redhat)
 218                 echo ""
 219                 ;;
 220         esac
 221         return 0
 222     }
 223     ctdb shutdown >/dev/null 2>&1
 224     RETVAL=$?
 225     count=0
 226     while pkill -0 -f $ctdbd ; do
 227         sleep 1
 228         count=$(($count + 1))
 229         [ $count -gt 10 ] && {
 230             echo -n $"killing ctdbd "
 231             pkill -9 -f $ctdbd
 232             pkill -9 -f $CTDB_BASE/events.d/
 233         }
 234     done
 235     case $init_style in
 236         suse)
 237             # re-set the return code to the recorded RETVAL in order
 238             # to print the correct status message
 239             set_retval $RETVAL
 240             rc_status -v
 241             ;;
 242         redhat)
 243             [ $RETVAL -eq 0 ] && success || failure
 244             [ $RETVAL -eq 0 ] && rm -f /var/lock/subsys/ctdb
 245             echo ""
 246             ;;
 247     esac
 248     return $RETVAL
 249 }
 250
 251 restart() {
 252     stop
 253     start
 254 }
 255
 256 status() {
 257     echo -n $"Checking for ctdbd service: "
 258     ctdb ping >/dev/null 2>&1 || {
 259         RETVAL=$?
 260         echo -n "  ctdbd not running. "
 261         case $init_style in
 262             suse)
 263                 set_retval $RETVAL
 264                 rc_status -v
 265                 ;;
 266             redhat)
 267                 echo ""
 268                 ;;
 269         esac
 270         return $RETVAL
 271     }
 272     echo ""
 273     ctdb status
 274 }
 275
 276
 277 case "$1" in
 278     start)
 279         start
 280         ;;
 281     stop)
 282         stop
 283         ;;
 284     restart|reload)
 285         restart
 286         ;;
 287     status)
 288         status
 289         ;;
 290     condrestart)
 291         ctdb status > /dev/null && restart || :
 292         ;;
 293     cron)
 294         # used from cron to auto-restart ctdb
 295         ctdb status > /dev/null || restart
 296         ;;
 297     *)
 298         echo $"Usage: $0 {start|stop|restart|status|cron|condrestart}"
 299         exit 1
 300 esac
 301
 302 exit $?