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|
########
# to be sourced by LINBIT vcs resource agents DRBDConfigure and DRBDPrimary
#
# Expects DRBD Resource Name in ResName attribute
#
# License: GPL-2.0
# Copyright (C) 2017 LINBIT HA-Solutions GmbH
# Roland Kammerer <roland.kammerer@linbit.com>
# Lars Ellenberg <lars.ellenberg@linbit.com>
###
DRBDADM="/sbin/drbdadm"
DRBDSETUP="/sbin/drbdsetup"
VCS_HOME=${VCS_HOME:-/opt/VRTSvcs}
ag_inc=${VCS_HOME}/bin/ag_i18n_inc.sh
. $ag_inc || { >&2 echo "$0: Failed to source $ag_inc"; exit 1; }
RESNAME=$1; shift;
VCSAG_SET_ENVS "$RESNAME"
VCSAG_GET_ATTR_VALUE "ResName" -1 1 "$@"
if [ $? != $VCSAG_SUCCESS ]; then
case $entry_point in
monitor) exit $VCSAG_RES_UNKNOWN ;;
*) exit $VCSAG_EP_DONE ;;
esac
fi
DRBDRESNAME=${VCSAG_ATTR_VALUE}
# does it need "--stacked"?
$DRBDADM --stacked sh-dev $DRBDRESNAME >/dev/null 2>&1 && DRBDADM="$DRBDADM --stacked"
confidence_from_drbd_state()
{
local drbd_resource_state=$1
if [ -z "$drbd_resource_state" ]; then
VCSAG_LOGDBG_MSG 1 "usage: confidence_from_drbd_state \"output-of-drbdsetup events2 --now '\$DRBDRESNAME'\""
return 99 # $VCSAG_RES_UNKNOWN
fi
peer_disks=$( echo "$drbd_resource_state" | grep " peer-device " )
pd_uptodate=$( echo "$peer_disks" | grep peer-disk:UpToDate | wc -l)
pd_not_uptodate=$( echo "$peer_disks" | grep " peer-disk:" | grep -v " peer-disk:UpToDate" | wc -l)
disks=$(echo "$drbd_resource_state" | grep " device ")
d_uptodate=$(echo "$disks" | grep " disk:UpToDate" | wc -l)
d_not_uptodate=$( echo "$disks" | grep " disk:" | grep -v " disk:UpToDate" | wc -l)
VCSAG_LOGDBG_MSG 2 "local/peer bad::good $d_not_uptodate/$pd_not_uptodate::$d_uptodate/$pd_uptodate"
case $d_not_uptodate/$pd_not_uptodate::$d_uptodate/$pd_uptodate in
0/0::0/0)
# should not happen
return 100 ;; # $VCSAG_RES_OFFLINE
0/0::*)
# perfect, all local and remote are uptodate
return 110 ;; # $VCSAG_RES_ONLINE
0/*::*/0)
# all local are good, no remote are good
return 106 ;;
0/*::*)
# all local are good, some remote are good
return 107 ;;
*::0/0)
# no good data anywhere :-(
# online, but barely, waiting for the good peer to connect?
return 101 ;;
*/0::0/*)
# no local good, all remote good
return 105 ;;
*::0/*)
# no local good, some remote good
return 103 ;;
*)
# some local good, some remote good
return 102 ;;
esac
}
DRBD_ROLE_PRI=$VCSAG_RES_ONLINE
DRBD_ROLE_SEC=$VCSAG_RES_OFFLINE
DRBD_ROLE_UNNKOWN=$VCSAG_RES_UNKNOWN
role_from_drbd_state()
{
if [ -z "$drbd_resource_state" ]; then
VCSAG_LOGDBG_MSG 1 "usage: role_from_drbd_state \"output-of-drbdsetup events2 --now '\$DRBDRESNAME'\""
return $DRBD_ROLE_UNNKOWN
fi
echo "$drbd_resource_state" | grep ' resource ' | grep ' role:Primary' && return $DRBD_ROLE_PRI
echo "$drbd_resource_state" | grep ' resource ' | grep ' role:Secondary' && return $DRBD_ROLE_SEC
return $DRBD_ROLE_UNNKOWN
}
|
