ctdb/config/events.d/62.cnfs

   1 #!/bin/sh
   2 # event script to integrate with gpfs cnfs
   3
   4 [ -n "$CTDB_BASE" ] || \
   5     export CTDB_BASE=$(cd -P $(dirname "$0") ; dirname "$PWD")
   6
   7 . $CTDB_BASE/functions
   8
   9 loadconfig
  10
  11 ctdb_setup_service_state_dir "gpfs"
  12
  13 check_if_healthy() {
  14         mkdir -p "$service_state_dir/fs"
  15
  16         [ -f "$service_state_dir/gpfsnoquorum" ] && {
  17                 logger No GPFS quorum. Node is UNHEALTHY
  18                 $CTDB_BASE/events.d/62.cnfs unhealthy "No GPFS quorum. Nodfe is UNHEALTHY."
  19                 exit 0
  20         }
  21
  22         logger All required GPFS resources are available. CNFS part is healthy.
  23         $CTDB_BASE/events.d/62.cnfs healthy
  24 }
  25
  26 case "$1" in
  27     startup)
  28         check_if_healthy
  29         ;;
  30
  31
  32     gpfsquorumreached)
  33         rm -f "$service_state_dir/gpfsnoquorum"
  34         logger "GPFS quorum has been reached."
  35         check_if_healthy
  36         ;;
  37
  38     gpfsquorumloss)
  39         touch "$service_state_dir/gpfsnoquorum"
  40         logger "GPFS quorum has been lost."
  41         $CTDB_BASE/events.d/62.cnfs unhealthy "GPFS quorum was lost! Marking node as UNHEALTHY."
  42         ;;
  43
  44     unhealthy)
  45         # Mark the node as UNHEALTHY which means all public addresses
  46         # will be migrated off the node.
  47         shift
  48         echo "$*" | ctdb_setstatus unhealthy -
  49
  50         # force a monitor event so we pick up immediately that this script
  51         # will now fail and make the node unhealthy.
  52         ctdb eventscript monitor
  53
  54         # Wait until we no longer serve any ip addresses at all
  55         PNN=`ctdb pnn | cut -d: -f2`
  56         while `ctdb -X ip | cut -d'|' -f3 | egrep "^$PNN$" >/dev/null`; do
  57                 sleep 1
  58         done
  59         ;;
  60
  61     healthy)
  62         # mark the node as healthy
  63         ctdb_setstatus healthy
  64         ;;
  65
  66
  67     monitor)
  68         ctdb_checkstatus
  69         exit $?
  70         ;;
  71
  72     *)
  73         ctdb_standard_event_handler "$@"
  74         ;;
  75 esac
  76
  77 exit 0
  78