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# Return the current Halo state of a given child (by index, i.e. 0
# is first child).
function halo_child_state {
grep "Child $1 .*halo state: " /var/log/glusterfs/$M0LOG |
tail -n1 | sed 's/^.* halo state: //' | sed 's/ .*$//'
}
# Return number of Halo children which are in a given state.
# First parameter is total # children.
# Second parameter is state to match (e.g. "UP").
function halo_children_in_state {
local CHILD_COUNT=$1
local SUM=0
for CHILD in $(seq 0 $((CHILD_COUNT-1))); do
if [ x"$(halo_child_state $CHILD)" == x"$2" ]; then
SUM=$((SUM+1))
fi
done
echo $SUM
}
# Return number of up halo children,
# First parameter is total # children,
function halo_children_up {
echo $(halo_children_in_state $1 "UP")
}
# Return number of down halo children,
# First parameter is total # children,
function halo_children_down {
echo $(halo_children_in_state $1 "DOWN")
}
# Return number of up & down halo children.
# First parameter is total number of children.
function halo_sum_child_states {
local CHILD_COUNT=$1
local UP=0
local DOWN=0
for CHILD in $(seq 0 $((CHILD_COUNT-1))); do
local STATE=$(halo_child_state $CHILD)
if [ x"$STATE" == x"UP" ]; then
UP=$((UP+1))
elif [ x"$STATE" == x"DOWN" ]; then
DOWN=$((DOWN+1))
fi
done
echo "$UP $DOWN"
}
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