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#!/bin/bash | |
OPTIND=1 | |
verbose=0 | |
dbuser="" | |
dbpasswd="" | |
while getopts "vh?U:P:H:" opt; do | |
case "$opt" in | |
h|\?) | |
echo "Usage: $0 -U <dbuser> -P <dbpasswd> -H <dbhost>" | |
exit 0 | |
;; | |
v) | |
verbose=1 | |
;; | |
U) | |
dbuser=$OPTARG | |
;; | |
P) | |
dbpasswd=$OPTARG | |
;; | |
H) | |
dbhost=$OPTARG | |
;; | |
esac | |
done | |
shift $((OPTIND-1)) | |
[ "$1" = "--" ] && shift | |
if [ -z "$dbuser" ] || [ -z "$dbpasswd" ]; then | |
echo "Usage: $0 -U <dbuser> -P <dbpasswd> -H <dbhost>" | |
exit 1; | |
fi | |
select="select concat('select sum(char_length(option_value)/(1024*1024)) from \`', \`tables\`.\`table_schema\`, '\`.\`', \`tables\`.\`table_name\`, '\` where autoload=\"yes\"') as query from \`information_schema\`.\`tables\` where \`tables\`.\`table_name\` like '%\_options';" | |
temp_file=$(mktemp) | |
mysql_command="mysql -N -u $dbuser -p$dbpasswd -h $dbhost" | |
warn_threshold=0.90 | |
alarm_threshold=0.98 | |
echo $select | ${mysql_command} > ${temp_file} | |
if [ -f "$temp_file" ]; then | |
alarm_level=0 | |
messages="" | |
while IFS= read -r query; do | |
result=`echo $query | ${mysql_command}` | |
table=`echo $query | grep -oE '\.\`(.+)\`\s' | cut -d '\`' -f 2` | |
if (( $(echo "$result > $alarm_threshold" | bc -l) )); then | |
if [ $alarm_level -le 2 ]; then | |
alarm_level=2 | |
fi | |
messages="$messages $table=$result" | |
elif (( $(echo "$result >= $warn_threshold" | bc -l) )); then | |
if [ "$alarm_level" -le 1 ]; then | |
alarm_level=1 | |
fi | |
messages="$messages $table=$result" | |
fi | |
done < ${temp_file} | |
if [ $alarm_level -lt 1 ]; then | |
echo "OK" | |
elif [ $alarm_level -ge 1 -a $alarm_level -lt 2 ]; then | |
echo "WARNING -$messages" | |
elif [ $alarm_level -ge 2 ]; then | |
echo "CRITICAL -$messages" | |
else | |
echo "UNKNOWN -$messages" | |
fi | |
rm ${temp_file} | |
exit $alarm_level | |
fi |
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