MySQL Cluster ndbmtd process init start script

ndbmtd.sh

#!/bin/bash

# chkconfig: 345 60 40
# description: datanode start/stop script

### BEGIN INIT INFO
# Provides:             datanode
# Required-Start:       $remote_fs $syslog
# Required-Stop:        $remote_fs $syslog
# Default-Start:        3 4 5
# Default-Stop:         0 1 6
# Short-Description:    datanode start/stop script
### END INIT INFO

NODEID=10
basename=`basename $0`
TRYCONN=24              #尝试连接管理节点次数
LOG=/var/log/ndbd_start.log
SBINDIR=<%=mysql_basedir%>/bin
MGM=<%=mysql_basedir%>/bin/ndb_mgm
PIDFILE=<%=data_dir%>/ndb_data/ndb_$NODEID.pid
OPTIONS="--ndb-nodeid=$NODEID"
PROGNAME="ndbmtd"
STARTNDBD="$SBINDIR/$PROGNAME $OPTIONS"
TEE="/usr/bin/tee -a $LOG"
DATE=`date "+%Y-%m-%d %H:%M:%S"`
LOCKFILE=""
if [ -d /var/lock/subsys ]; then
  LOCKFILE=/var/lock/subsys/$basename
else
  LOCKFILE=/var/lock/$basename
fi
if [ -e /etc/init.d/functions ]; then
  . /etc/init.d/functions
else
  . /lib/lsb/init-functions
fi
if [ ! -f $SBINDIR/$PROGNAME ]; then
  echo -e "$PROGNAME executable not found in $SBINDIR"|$TEE
  exit 1
fi
RETVAL=0
start() {
    echo "$DATE Starting $PROGNAME $OPTIONS !"|$TEE
    PID=`pgrep -f "$PROGNAME.+ndb-nodeid=$NODEID"`

    if [ -n "$PID" ]; then
        echo -e "$PROGNAME is already running with pid $PID\n"|$TEE
        exit 0
    else
      if [ "$1" ]; then
         OPTIONS=--initial
      fi
      $MGM -e show -t $TRYCONN > /dev/null 2>&1
      RETVAL=$?
      if [ $RETVAL -ne 0 ]; then
        echo -e "Manager Node not connected\n"| $TEE
        exit 1
      fi
      $STARTNDBD $OPTIONS |$TEE
      RETVAL=$?
      [ $RETVAL -eq 0 ] && /bin/touch $LOCKFILE
      sleep 2
      PID=`pgrep -f "$PROGNAME.+ndb-nodeid=$NODEID"`
      if [ "$PID" ]; then
        echo -e "OK: Success to start $PROGNAME\n" | $TEE
        return 0
      else
        echo -e "Error: Failed to start $PROGNAME\n" | $TEE
        return 1
      fi
 fi
}
stop() {
  echo "$DATE Stopping $PROGNAME:"|$TEE
  PID=`pgrep -f "$PROGNAME.+ndb-nodeid=$NODEID"`
  nodenum=`$MGM -e 'all status' |grep started |wc -l `
  if [[ $nodenum == 1 ]]; then
    $MGM -e shutdown |$TEE
    return 0
  fi
  if [ -n "$PID" ]; then
     # pkill -15 -f "$PROGNAME.+ndb-nodeid=$NODEID"
     $MGM -e "$NODEID stop" |$TEE
  else
    `rm -f ${PIDFILE}`
    `rm -f ${LOCKFILE}`
    echo -e "Error: Failed $PROGNAME not running !\n" | $TEE
    return 0
  fi
  i=1
  while [ "`pgrep -f "$PROGNAME.+ndb-nodeid=$NODEID"`" ];
  do
     if [ $i -eq 60 ]; then
       echo -e "giving up after 60 secods\n"| $TEE
       return 0
     fi
     i=`expr $i + 1`
     sleep 1
  done
  PID=`pgrep $PROGNAME`
  if [ -n "$PID" ]; then
    echo -e "Error: Failed $PROGNAME not running\n" | $TEE
     return 1
  else
    `rm -f ${PIDFILE}`
    `rm -f ${LOCKFILE}`
    echo -e "OK: Success to stop $PROGNAME\n" | $TEE
    return 0
  fi
}
case $1 in
  start)
        start
        RETVAL=$?
        ;;
  stop)
        stop
        RETVAL=$?
        ;;
  status)
        status -p $PIDFILE $PROGNAME
        RETVAL=$?
        ;;
  restart)
        stop
        start
        RETVAL=$?
        ;;
  initial)
        start --initial
        RETVAL=$?
        ;;
  *)
        echo "Usage: $basename {start|stop|restart|initial|status}"
        exit 1
        ;;
esac
exit $RETVAL