ctdb/config/events.d/01.reclock

   1 #!/bin/sh
   2 # script to check accessibility to the reclock file on a node
   3
   4 . $CTDB_BASE/functions
   5 loadconfig
   6
   7 case "$1" in
   8     init)
   9         ctdb_counter_init
  10         ;;
  11
  12     monitor)
  13         RECLOCKFILE=$(ctdb -Y getreclock)
  14
  15         ctdb_counter_incr
  16         (ctdb_check_counter_limit 200 >/dev/null 2>&1) || {
  17             echo "Reclock file $RECLOCKFILE\" can not be accessed. Shutting down."
  18             df
  19             sleep 1
  20             ctdb shutdown
  21         }
  22
  23         [ -z "$RECLOCKFILE" ] && {
  24             # we are not using a reclock file
  25             ctdb_counter_init
  26             exit 0
  27         }
  28
  29         # try stat the reclock file as a background process
  30         # so that we dont block in case the cluster filesystem is unavailable
  31         (
  32             stat $RECLOCKFILE && {
  33                 # we could stat the file, reset the counter
  34                 ctdb_counter_init
  35             }
  36         ) >/dev/null 2>/dev/null &
  37
  38         ctdb_check_counter_limit 3 quiet
  39         ;;
  40
  41     *)
  42         ctdb_standard_event_handler "$@"
  43         ;;
  44 esac
  45
  46 exit 0