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Use pipeline with while loop is more logical, and reformat indentation. #8

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Use pipeline with while loop is more logical, and reformat indentation. #8

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164 changes: 82 additions & 82 deletions check_glusterfs
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Original file line number Diff line number Diff line change
Expand Up @@ -38,132 +38,132 @@ REVISION="1.0.1"

# parse command line
usage () {
echo ""
echo "USAGE: "
echo " $PROGNAME -v VOLUME -n BRICKS [-w GB -c GB]"
echo " -n BRICKS: number of bricks"
echo " -w and -c values in GB"
exit $STATE_UNKNOWN
echo ""
echo "USAGE: "
echo " $PROGNAME -v VOLUME -n BRICKS [-w GB -c GB]"
echo " -n BRICKS: number of bricks"
echo " -w and -c values in GB"
exit $STATE_UNKNOWN
}

while getopts "v:n:w:c:" opt; do
case $opt in
v) VOLUME=${OPTARG} ;;
n) BRICKS=${OPTARG} ;;
w) WARN=${OPTARG} ;;
c) CRIT=${OPTARG} ;;
*) usage ;;
esac
case $opt in
v) VOLUME=${OPTARG} ;;
n) BRICKS=${OPTARG} ;;
w) WARN=${OPTARG} ;;
c) CRIT=${OPTARG} ;;
*) usage ;;
esac
done

if [ -z "${VOLUME}" -o -z "${BRICKS}" ]; then
usage
usage
fi

Exit () {
echo "$1: ${2:0}"
status=STATE_$1
exit ${!status}
echo "$1: ${2:0}"
status=STATE_$1
exit ${!status}
}

# check for commands
for cmd in basename bc awk sudo pidof gluster; do
if ! type -p "$cmd" >/dev/null; then
Exit UNKNOWN "$cmd not found"
fi
if ! type -p "$cmd" >/dev/null; then
Exit UNKNOWN "$cmd not found"
fi
done

# check for glusterd (management daemon)
if ! pidof glusterd &>/dev/null; then
Exit CRITICAL "glusterd management daemon not running"
Exit CRITICAL "glusterd management daemon not running"
fi

# check for glusterfsd (brick daemon)
if ! pidof glusterfsd &>/dev/null; then
Exit CRITICAL "glusterfsd brick daemon not running"
Exit CRITICAL "glusterfsd brick daemon not running"
fi

# get volume heal status
heal=0
for entries in $(sudo gluster volume heal ${VOLUME} info | awk '/^Number of entries: /{print $4}'); do
if [ "$entries" -gt 0 ]; then
let $((heal+=entries))
fi
if [ "$entries" -gt 0 ]; then
let $((heal+=entries))
fi
done
if [ "$heal" -gt 0 ]; then
errors=("${errors[@]}" "$heal unsynched entries")
errors=("${errors[@]}" "$heal unsynched entries")
fi

# get volume status
bricksfound=0
freegb=9999999
shopt -s nullglob
while read -r line; do
field=($(echo $line))
case ${field[0]} in
Brick)
brick=${field[@]:2}
;;
Disk)
key=${field[@]:0:3}
if [ "${key}" = "Disk Space Free" ]; then
freeunit=${field[@]:4}
free=${freeunit:0:-2}
freeconvgb=`echo "($free*1024)" | bc`
unit=${freeunit#$free}
if [ "$unit" = "TB" ]; then
free=$freeconvgb
unit="GB"
fi
if [ "$unit" != "GB" ]; then
Exit UNKNOWN "unknown disk space size $freeunit"
fi
free=$(echo "${free} / 1" | bc -q)
if [ $free -lt $freegb ]; then
freegb=$free
fi
fi
;;
Online)
online=${field[@]:2}
if [ "${online}" = "Y" ]; then
let $((bricksfound++))
else
errors=("${errors[@]}" "$brick offline")
fi
;;
esac
done < <(sudo gluster volume status ${VOLUME} detail)
sudo gluster volume status ${VOLUME} detail | while read -r line; do
field=($(echo $line))
case ${field[0]} in
Brick)
brick=${field[@]:2}
;;
Disk)
key=${field[@]:0:3}
if [ "${key}" = "Disk Space Free" ]; then
freeunit=${field[@]:4}
free=${freeunit:0:-2}
freeconvgb=`echo "($free*1024)" | bc`
unit=${freeunit#$free}
if [ "$unit" = "TB" ]; then
free=$freeconvgb
unit="GB"
fi
if [ "$unit" != "GB" ]; then
Exit UNKNOWN "unknown disk space size $freeunit"
fi
free=$(echo "${free} / 1" | bc -q)
if [ $free -lt $freegb ]; then
freegb=$free
fi
fi
;;
Online)
online=${field[@]:2}
if [ "${online}" = "Y" ]; then
let $((bricksfound++))
else
errors=("${errors[@]}" "$brick offline")
fi
;;
esac
done

if [ $bricksfound -eq 0 ]; then
Exit CRITICAL "no bricks found"
Exit CRITICAL "no bricks found"
elif [ $bricksfound -lt $BRICKS ]; then
errors=("${errors[@]}" "found $bricksfound bricks, expected $BRICKS ")
ex_stat="WARNING_stat"
errors=("${errors[@]}" "found $bricksfound bricks, expected $BRICKS ")
ex_stat="WARNING_stat"
fi

if [ -n "$CRIT" -a -n "$WARN" ]; then
if [ $CRIT -ge $WARN ]; then
Exit UNKNOWN "critical threshold below warning"
elif [ $freegb -lt $CRIT ]; then
errors=("${errors[@]}" "free space ${freegb}GB")
ex_stat="CRITICAL_stat"
elif [ $freegb -lt $WARN ]; then
errors=("${errors[@]}" "free space ${freegb}GB")
ex_stat="WARNING_stat"
fi
if [ $CRIT -ge $WARN ]; then
Exit UNKNOWN "critical threshold below warning"
elif [ $freegb -lt $CRIT ]; then
errors=("${errors[@]}" "free space ${freegb}GB")
ex_stat="CRITICAL_stat"
elif [ $freegb -lt $WARN ]; then
errors=("${errors[@]}" "free space ${freegb}GB")
ex_stat="WARNING_stat"
fi
fi

# exit with warning if errors
if [ -n "$errors" ]; then
sep='; '
msg=$(printf "${sep}%s" "${errors[@]}")
msg=${msg:${#sep}}
if [ ${ex_stat} == "CRITICAL_stat" ]; then
Exit CRITICAL "${msg}"
else
Exit WARNING "${msg}"
fi
sep='; '
msg=$(printf "${sep}%s" "${errors[@]}")
msg=${msg:${#sep}}
if [ ${ex_stat} == "CRITICAL_stat" ]; then
Exit CRITICAL "${msg}"
else
Exit WARNING "${msg}"
fi
fi

# exit with no errors
Expand Down