hb_takeover.in

在LINUX下实现HA的源代码

#!/bin/bash  

# This script sets the node (where it was called) to *active*
# It forces the other node to release all the held resources and lets
# this 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

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 = "--help" ]; then
       usage
fi

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


ha_clustermsg <<-!MSG
	t=hb_takeover
	rsc_hold=$resources
!MSG