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 . $CTDB_BASE/functions
  43 loadconfig network
  44 loadconfig ctdb
  45
  46 [ -z "$CTDB_RECOVERY_LOCK" ] && {
  47     echo "No recovery lock specified. Starting CTDB without split brain prevention"
  48 }
  49
  50 # check networking is up (for redhat)
  51 [ "$NETWORKING" = "no" ] && exit 0
  52
  53 detect_init_style
  54 export CTDB_INIT_STYLE
  55
  56 ctdbd=${CTDBD:-/usr/sbin/ctdbd}
  57
  58 if [ "$CTDB_VALGRIND" = "yes" ]; then
  59     init_style="valgrind"
  60 else
  61     init_style="$CTDB_INIT_STYLE"
  62 fi
  63
  64 build_ctdb_options () {
  65
  66     maybe_set () {
  67         # If the 2nd arg is null then return - don't set anything.
  68         # Else if the 3rd arg is set and it doesn't match the 2nd arg
  69         # then return
  70         [ -z "$2" -o \( -n "$3" -a "$3" != "$2" \) ] && return
  71
  72         val="$2"
  73         case "$1" in
  74             --*) sep="=" ;;
  75             -*)  sep=" " ;;
  76         esac
  77         # For these options we're only passing a value-less flag.
  78         [ -n "$3" ] && {
  79             val=""
  80             sep=""
  81         }
  82
  83         CTDB_OPTIONS="${CTDB_OPTIONS}${CTDB_OPTIONS:+ }${1}${sep}${val}"
  84     }
  85
  86     maybe_set "--reclock"                "$CTDB_RECOVERY_LOCK"
  87
  88     # build up CTDB_OPTIONS variable from optional parameters
  89     maybe_set "--logfile"                "$CTDB_LOGFILE"
  90     maybe_set "--nlist"                  "$CTDB_NODES"
  91     maybe_set "--socket"                 "$CTDB_SOCKET"
  92     maybe_set "--public-addresses"       "$CTDB_PUBLIC_ADDRESSES"
  93     maybe_set "--public-interface"       "$CTDB_PUBLIC_INTERFACE"
  94     maybe_set "--dbdir"                  "$CTDB_DBDIR"
  95     maybe_set "--dbdir-persistent"       "$CTDB_DBDIR_PERSISTENT"
  96     maybe_set "--event-script-dir"       "$CTDB_EVENT_SCRIPT_DIR"
  97     maybe_set "--transport"              "$CTDB_TRANSPORT"
  98     maybe_set "-d"                       "$CTDB_DEBUGLEVEL"
  99     maybe_set "--notification-script"    "$CTDB_NOTIFY_SCRIPT"
 100     maybe_set "--start-as-disabled"      "$CTDB_START_AS_DISABLED"    "yes"
 101     maybe_set "--start-as-stopped "      "$CTDB_START_AS_STOPPED"     "yes"
 102     maybe_set "--no-recmaster"           "$CTDB_CAPABILITY_RECMASTER" "no"
 103     maybe_set "--no-lmaster"             "$CTDB_CAPABILITY_LMASTER"   "no"
 104     maybe_set "--lvs --single-public-ip" "$CTDB_LVS_PUBLIC_IP"
 105     maybe_set "--script-log-level"       "$CTDB_SCRIPT_LOG_LEVEL"
 106     maybe_set "--syslog"                 "$CTDB_SYSLOG"               "yes"
 107 }
 108
 109 check_persistent_databases () {
 110     PERSISTENT_DB_DIR="${CTDB_DBDIR:-/var/ctdb}/persistent"
 111     mkdir -p $PERSISTENT_DB_DIR 2>/dev/null
 112     for PDBASE in `ls $PERSISTENT_DB_DIR/*.tdb.[0-9] 2>/dev/null`; do
 113         /usr/bin/tdbdump $PDBASE >/dev/null 2>/dev/null || {
 114             echo "Persistent database $PDBASE is corrupted! CTDB will not start."
 115             return 1
 116         }
 117     done
 118 }
 119
 120 set_ctdb_variables () {
 121     # set any tunables from the config file
 122     set | grep ^CTDB_SET_ | cut -d_ -f3- |
 123     while read v; do
 124         varname=`echo $v | cut -d= -f1`
 125         value=`echo $v | cut -d= -f2`
 126         ctdb setvar $varname $value || RETVAL=1
 127     done || exit 1
 128 }
 129
 130 set_retval() {
 131     return $1
 132 }
 133
 134 ctdbd=${CTDBD:-/usr/sbin/ctdbd}
 135
 136 start() {
 137     echo -n $"Starting ctdbd service: "
 138
 139     ctdb ping >/dev/null 2>&1 && {
 140         echo $"CTDB is already running"
 141         return 1
 142     }
 143
 144     build_ctdb_options
 145
 146     check_persistent_databases || return $?
 147
 148     case $init_style in
 149         valgrind)
 150             valgrind -q --log-file=/var/log/ctdb_valgrind \
 151                 $ctdbd --nosetsched $CTDB_OPTIONS
 152             RETVAL=$?
 153             echo
 154             ;;
 155         suse)
 156             startproc $ctdbd $CTDB_OPTIONS
 157             rc_status -v
 158             RETVAL=$?
 159             ;;
 160         redhat)
 161             daemon $ctdbd $CTDB_OPTIONS
 162             RETVAL=$?
 163             echo
 164             [ $RETVAL -eq 0 ] && touch /var/lock/subsys/ctdb || RETVAL=1
 165             ;;
 166         debian)
 167             start-stop-daemon --start --quiet --background \
 168                 --exec $ctdbd -- $CTDB_OPTIONS
 169             RETVAL=$?
 170             ;;
 171     esac
 172
 173     sleep 1
 174
 175     set_ctdb_variables
 176
 177     return $RETVAL
 178 }
 179
 180 stop() {
 181     echo -n $"Shutting down ctdbd service: "
 182     pkill -0 -f $ctdbd || {
 183         echo -n "  Warning: ctdbd not running ! "
 184         case $init_style in
 185             suse)
 186                 rc_status -v
 187                 ;;
 188             redhat)
 189                 echo ""
 190                 ;;
 191         esac
 192         return 0
 193     }
 194     ctdb shutdown >/dev/null 2>&1
 195     RETVAL=$?
 196     count=0
 197     while pkill -0 -f $ctdbd ; do
 198         sleep 1
 199         count=$(($count + 1))
 200         [ $count -gt 10 ] && {
 201             echo -n $"killing ctdbd "
 202             pkill -9 -f $ctdbd
 203             pkill -9 -f $CTDB_BASE/events.d/
 204         }
 205     done
 206     case $init_style in
 207         suse)
 208             # re-set the return code to the recorded RETVAL in order
 209             # to print the correct status message
 210             set_retval $RETVAL
 211             rc_status -v
 212             ;;
 213         redhat)
 214             echo
 215             [ $RETVAL -eq 0 ] && rm -f /var/lock/subsys/ctdb
 216             echo ""
 217             ;;
 218     esac
 219     return $RETVAL
 220 }
 221
 222 restart() {
 223     stop
 224     start
 225 }
 226
 227 status() {
 228     echo -n $"Checking for ctdbd service: "
 229     ctdb ping >/dev/null 2>&1 || {
 230         RETVAL=$?
 231         echo -n "  ctdbd not running. "
 232         case $init_style in
 233             suse)
 234                 set_retval $RETVAL
 235                 rc_status -v
 236                 ;;
 237             redhat)
 238                 echo ""
 239                 ;;
 240         esac
 241         return $RETVAL
 242     }
 243     echo ""
 244     ctdb status
 245 }
 246
 247
 248 case "$1" in
 249     start)
 250         start
 251         ;;
 252     stop)
 253         stop
 254         ;;
 255     restart|reload)
 256         restart
 257         ;;
 258     status)
 259         status
 260         ;;
 261     condrestart)
 262         ctdb status > /dev/null && restart || :
 263         ;;
 264     cron)
 265         # used from cron to auto-restart ctdb
 266         ctdb status > /dev/null || restart
 267         ;;
 268     *)
 269         echo $"Usage: $0 {start|stop|restart|status|cron|condrestart}"
 270         exit 1
 271 esac
 272
 273 exit $?