2 ############################
3 # main event script for ctdb
5 # This script is called with one of the following sets of arguments
6 # startup : called when ctdb starts
7 # shutdown : called when ctdb shuts down
8 # takeip : called when an IP address is taken over
9 # releaseip : called when an IP address is released
10 # recovered : called when ctdb has finished a recovery event
12 . $CTDB_BASE/functions
17 # make sure we have a blank state directory for the scripts to work with
18 /bin/rm -rf $CTDB_BASE/state
19 /bin/mkdir -p $CTDB_BASE/state
21 # set any tunables from the config file
22 set | grep ^CTDB_SET_ | cut -d_ -f3- |
24 varname=`echo $v | cut -d= -f1`
25 value=`echo $v | cut -d= -f2`
26 ctdb setvar $varname $value || exit 1
27 echo "Set $varname to $value"
32 # monitor that we are not running out of memory
33 [ -z "$CTDB_MONITOR_FREE_MEMORY" ] || {
34 FREE_MEM=`free -m | grep "buffers/cache" | while read A B C D ;do /bin/echo -n $D ; done`
35 [ `expr "$FREE_MEM" "<" "$CTDB_MONITOR_FREE_MEMORY"` != "0" ] && {
36 echo "OOM. Free:$FREE_MEM while CTDB treshold is $CTDB_MONITOR_FREE_MEMORY"
45 ctdb_standard_event_handler "$@"