hb_standby.in

在LINUX下实现HA的源代码

#!/bin/sh

# This script sets the node (where it was called) to *standby*
# It forces the node to release all the held resources and lets
# the other node do a takeover.

#	This script will only work for a two machine setup...
#	More than that and you need to vote, or something...

HA_DIR=@sysconfdir@/ha.d
. ${HA_DIR}/shellfuncs

: Now running $0: $*

usage() {
	echo "usage:"
	echo "$0 [all|foreign|local|failback]" >&2
	exit 1;
}

if
  [ $# -ge 2 ]
then
        echo "$0: too many arguments"
        usage
        exit 1
fi


if
  [ $# -ge 1 ]
then
  resources=$1
else
  resources=all
fi

if [ $resources != "all" ] && [ $resources != "foreign" ] &&
   [ $resources != "local" ] && [ $resources != "failback" ] &&
   [ $resources != "--help" ]; then
        echo "$0: wrong resources($resources)."
        usage
        exit 1
fi

case $resources in
  all|foreign|local)	;;
  failback)		resources=foreign;;
  *)			usage;;
esac

ha_log "Going standby [$resources]."
  	ha_clustermsg <<-!MSG
	t=ask_resources
	rsc_hold=$resources
	info=me
	!MSG