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     maybe_set "--max-persistent-check-errors" "$CTDB_MAX_PERSISTENT_CHECK_ERRORS"
 107 }
 108
 109 check_tdb () {
 110         local PDBASE=$1
 111
 112         local TDBTOOL_HAS_CHECK=`echo "help" | /usr/bin/tdbtool | grep check | wc -l`
 113
 114         test x"$TDBTOOL_HAS_CHECK" = x"1" && {
 115                 #
 116                 # Note tdbtool always exits with 0
 117                 #
 118                 local OK=`/usr/bin/tdbtool $PDBASE check | grep "Database integrity is OK" | wc -l`
 119                 test x"$OK" = x"1" || {
 120                         return 1;
 121                 }
 122
 123                 return 0;
 124         }
 125
 126         /usr/bin/tdbdump $PDBASE >/dev/null 2>/dev/null || {
 127                 return $?;
 128         }
 129
 130         return 0;
 131 }
 132
 133 check_persistent_databases () {
 134     PERSISTENT_DB_DIR="${CTDB_DBDIR:-/var/ctdb}/persistent"
 135     mkdir -p $PERSISTENT_DB_DIR 2>/dev/null
 136     local ERRCOUNT=$CTDB_MAX_PERSISTENT_CHECK_ERRORS
 137
 138     test -z "$ERRCOUNT" && {
 139         ERRCOUNT="0"
 140     }
 141     test x"$ERRCOUNT" != x"0" && {
 142         return 0;
 143     }
 144     for PDBASE in `ls $PERSISTENT_DB_DIR/*.tdb.[0-9] 2>/dev/null`; do
 145         check_tdb $PDBASE || {
 146             echo "Persistent database $PDBASE is corrupted! CTDB will not start."
 147             return 1
 148         }
 149     done
 150 }
 151
 152 set_ctdb_variables () {
 153     # set any tunables from the config file
 154     set | grep ^CTDB_SET_ | cut -d_ -f3- |
 155     while read v; do
 156         varname=`echo $v | cut -d= -f1`
 157         value=`echo $v | cut -d= -f2`
 158         ctdb setvar $varname $value || RETVAL=1
 159     done || exit 1
 160 }
 161
 162 set_retval() {
 163     return $1
 164 }
 165
 166 ctdbd=${CTDBD:-/usr/sbin/ctdbd}
 167
 168 start() {
 169     echo -n $"Starting ctdbd service: "
 170
 171     ctdb ping >/dev/null 2>&1 && {
 172         echo $"CTDB is already running"
 173         return 1
 174     }
 175
 176     build_ctdb_options
 177
 178     check_persistent_databases || return $?
 179
 180     if [ yes == "$CTDB_SUPPRESS_COREFILE" ]; then
 181         ulimit -c 0
 182     else
 183         ulimit -c unlimited
 184     fi
 185
 186     case $init_style in
 187         valgrind)
 188             valgrind -q --log-file=/var/log/ctdb_valgrind \
 189                 $ctdbd --valgrinding $CTDB_OPTIONS
 190             RETVAL=$?
 191             echo
 192             ;;
 193         suse)
 194             startproc $ctdbd $CTDB_OPTIONS
 195             rc_status -v
 196             RETVAL=$?
 197             ;;
 198         redhat)
 199             daemon $ctdbd $CTDB_OPTIONS
 200             RETVAL=$?
 201             echo
 202             [ $RETVAL -eq 0 ] && touch /var/lock/subsys/ctdb || RETVAL=1
 203             ;;
 204         debian)
 205             start-stop-daemon --start --quiet --background \
 206                 --exec $ctdbd -- $CTDB_OPTIONS
 207             RETVAL=$?
 208             ;;
 209     esac
 210
 211     sleep 1
 212
 213     set_ctdb_variables
 214
 215     return $RETVAL
 216 }
 217
 218 stop() {
 219     echo -n $"Shutting down ctdbd service: "
 220     pkill -0 -f $ctdbd || {
 221         echo -n "  Warning: ctdbd not running ! "
 222         case $init_style in
 223             suse)
 224                 rc_status -v
 225                 ;;
 226             redhat)
 227                 echo ""
 228                 ;;
 229         esac
 230         return 0
 231     }
 232     ctdb shutdown >/dev/null 2>&1
 233     RETVAL=$?
 234     count=0
 235     while pkill -0 -f $ctdbd ; do
 236         sleep 1
 237         count=$(($count + 1))
 238         [ $count -gt 10 ] && {
 239             echo -n $"killing ctdbd "
 240             pkill -9 -f $ctdbd
 241             pkill -9 -f $CTDB_BASE/events.d/
 242         }
 243     done
 244     case $init_style in
 245         suse)
 246             # re-set the return code to the recorded RETVAL in order
 247             # to print the correct status message
 248             set_retval $RETVAL
 249             rc_status -v
 250             ;;
 251         redhat)
 252             [ $RETVAL -eq 0 ] && success || failure
 253             [ $RETVAL -eq 0 ] && rm -f /var/lock/subsys/ctdb
 254             echo ""
 255             ;;
 256     esac
 257     return $RETVAL
 258 }
 259
 260 restart() {
 261     stop
 262     start
 263 }
 264
 265 status() {
 266     echo -n $"Checking for ctdbd service: "
 267     ctdb ping >/dev/null 2>&1 || {
 268         RETVAL=$?
 269         echo -n "  ctdbd not running. "
 270         case $init_style in
 271             suse)
 272                 set_retval $RETVAL
 273                 rc_status -v
 274                 ;;
 275             redhat)
 276                 echo ""
 277                 ;;
 278         esac
 279         return $RETVAL
 280     }
 281     echo ""
 282     ctdb status
 283 }
 284
 285
 286 case "$1" in
 287     start)
 288         start
 289         ;;
 290     stop)
 291         stop
 292         ;;
 293     restart|reload)
 294         restart
 295         ;;
 296     status)
 297         status
 298         ;;
 299     condrestart)
 300         ctdb status > /dev/null && restart || :
 301         ;;
 302     cron)
 303         # used from cron to auto-restart ctdb
 304         ctdb status > /dev/null || restart
 305         ;;
 306     *)
 307         echo $"Usage: $0 {start|stop|restart|status|cron|condrestart}"
 308         exit 1
 309 esac
 310
 311 exit $?