lustre/scripts/lustrefs

   1 #!/bin/bash
   2 #
   3 # lustrefs      Mount Lustre filesystems.
   4 #
   5 # Authors:      Jacob Berkman <jacob@clusterfs.com>
   6 #
   7 # Based on the netfs script:
   8 #
   9 # Authors:      Bill Nottingham <notting@redhat.com>
  10 #               Miquel van Smoorenburg, <miquels@drinkel.nl.mugnet.org>
  11 #
  12 # chkconfig: - 26 74
  13 # description: Mounts and unmounts all Lustre mount points.
  14 #
  15 ### BEGIN INIT INFO
  16 # Provides: lustrefs
  17 # Required-Start: $network $remote_fs +sshd +lustre
  18 # Required-Stop: $network $remote_fs
  19 # Should-Start:
  20 # Should-Stop:
  21 # Default-Start: 3 5
  22 # Default-Stop: 0 1 2 6
  23 # Short-Description: Mounts and unmounts all Lustre mount points.
  24 ### END INIT INFO
  25
  26 # Source function library.
  27 if [ -f /etc/init.d/functions ]; then
  28    . /etc/init.d/functions
  29 fi
  30
  31 # Source networking configuration.
  32 if [ -f /etc/sysconfig/network ]; then
  33    . /etc/sysconfig/network
  34 fi
  35
  36 # Source lsb-functions.
  37 if [ -f /lib/lsb/init-functions ]; then
  38    . /lib/lsb/init-functions
  39 fi
  40
  41 [ -x /sbin/fuser ] && FUSER=/sbin/fuser
  42 [ -x /bin/fuser ] && FUSER=/bin/fuser
  43
  44 # Check that networking is up.
  45 [ "${NETWORKING}" = "no" ] && exit 0
  46
  47 # Red Hat has it's own "action"-function for RHGB-messages.
  48 lustre_action () {
  49         STRING=$1
  50         shift
  51         if [ $(typeset -F action) ]; then
  52                 action "$STRING" $*
  53                 rc=$?
  54         else
  55                 $*
  56                 rc=$?
  57                 if [ $rc = 0 ]; then
  58                         log_success_msg "$STRING"
  59                 else
  60                         log_failure_msg "$STRING"
  61                 fi
  62         fi
  63         return $rc
  64 }
  65
  66 LUSTREFSTAB=`LC_ALL=C awk '!/^#/ && $3 == "lustre" && $4 !~ /noauto/ { print $2 }' /etc/fstab`
  67 LUSTREMTAB=`LC_ALL=C awk '!/^#/ && ($3 ~ "lustre") { print $2 }' /proc/mounts`
  68
  69 # See how we were called.
  70 case "$1" in
  71   start)
  72         [ -n "$LUSTREFSTAB" ] && lustre_action $"Mounting Lustre filesystems: " mount -a -t lustre
  73         touch /var/lock/subsys/lustrefs
  74         ;;
  75   stop)
  76         [ -n "$LUSTREMTAB" ] && {
  77                 sig=
  78                 retry=3
  79                 remaining=`LC_ALL=C awk '!/^#/ && $3 ~ /^lustre/ && $2 != "/" {print $2}' /proc/mounts`
  80                 while [ -n "$remaining" -a "$retry" -gt 0 ]
  81                 do
  82                         if [ "$retry" -lt 3 ]; then
  83                                 lustre_action $"Unmounting Lustre filesystems (retry): " umount -f -a -t lustre
  84                         else
  85                                 lustre_action $"Unmounting Lustre filesystems: " umount -a -t lustre
  86                         fi
  87                         sleep 2
  88                         remaining=`LC_ALL=C awk '!/^#/ && $3 ~ /^lustre/ && $2 != "/" {print $2}' /proc/mounts`
  89                         [ -z "$remaining" ] && break
  90                         $FUSER -k -m $sig $remaining >/dev/null
  91                         sleep 5
  92                         retry=$(($retry - 1))
  93                         sig=-9
  94                 done
  95         }
  96         rm -f /var/lock/subsys/lustrefs
  97         ;;
  98   status)
  99         if [ -f /proc/mounts ] ; then
 100                 [ -n "$LUSTREFSTAB" ] && {
 101                       echo $"Configured Lustre mountpoints: "
 102                       for fs in $LUSTREFSTAB; do echo $fs ; done
 103                 }
 104                 [ -n "$LUSTREMTAB" ] && {
 105                       echo $"Active Lustre mountpoints: "
 106                       for fs in $LUSTREMTAB; do echo $fs ; done
 107                 }
 108         else
 109                 echo $"/proc filesystem unavailable"
 110         fi
 111         ;;
 112   restart)
 113         $0 stop
 114         $0 start
 115         ;;
 116   reload)
 117         $0 start
 118         ;;
 119   *)
 120         echo $"Usage: $0 {start|stop|restart|reload|status}"
 121         exit 1
 122 esac
 123
 124 exit 0