ctdb/config/events.d/01.reclock

   1 #!/bin/sh
   2 # script to check accessibility to the reclock file on a node
   3
   4 [ -n "$CTDB_BASE" ] || \
   5     export CTDB_BASE=$(cd -P $(dirname "$0") ; dirname "$PWD")
   6
   7 . $CTDB_BASE/functions
   8 loadconfig
   9
  10 case "$1" in
  11     init)
  12         ctdb_counter_init
  13         ;;
  14
  15     monitor)
  16         # Early exit if not using a reclock file
  17         [ -n "$CTDB_RECOVERY_LOCK" ] || exit 0
  18
  19         # Try to stat the reclock file as a background process so that
  20         # we don't block in case the cluster filesystem is unavailable
  21         (
  22             if stat $CTDB_RECOVERY_LOCK ; then
  23                 # We could stat the file, reset the counter
  24                 ctdb_counter_init
  25             fi
  26         ) >/dev/null 2>&1 &
  27
  28         ctdb_counter_incr
  29         if ! ctdb_check_counter "quiet" -ge 200 ; then
  30             echo "Reclock file \"$CTDB_RECOVERY_LOCK\" can not be accessed. Shutting down."
  31             df
  32             sleep 1
  33             ctdb shutdown
  34         fi
  35
  36         ctdb_check_counter "error" -gt 3
  37         ;;
  38
  39     *)
  40         ctdb_standard_event_handler "$@"
  41         ;;
  42 esac
  43
  44 exit 0