nagios监控memcache状态的shell脚本插件

test特色    

#DATE=`date +%Y-%m-%d`

connections=`/usr/local/nagios/libexec/check_tcp -H localhost  -p 11211 -E -s 'stats\r\nquit\r\n' -e 'uptime' |grep curr_connections | awk '{print $3}'`

#cmd_get=`/usr/local/nagios/libexec/check_tcp -H localhost  -p 11211 -E -s 'stats\r\nquit\r\n' -e 'uptime' |grep cmd_get | awk '{print $3+0}'`

#get_hits=`/usr/local/nagios/libexec/check_tcp -H localhost  -p 11211 -E -s 'stats\r\nquit\r\n' -e 'uptime' |grep get_hits | awk '{print $3+0}'`

limit_maxbytes=`/usr/local/nagios/libexec/check_tcp -H localhost  -p 11211 -E -s 'stats\r\nquit\r\n' -e 'uptime' |grep limit_maxbytes | awk '{print $3+0}'`

th=`/usr/local/nagios/libexec/check_tcp -H localhost  -p 11211 -E -s 'stats\r\nquit\r\n' -e 'uptime' |grep threads | awk '{print $3+0}'`

bytes=`/usr/local/nagios/libexec/check_tcp -H localhost  -p 11211 -E -s 'stats\r\nquit\r\n' -e 'uptime' |grep bytes |grep -vn '_'|awk '{print $3+0}'`

ci=`/usr/local/nagios/libexec/check_tcp -H localhost  -p 11211 -E -s 'stats\r\nquit\r\n' -e 'uptime' |grep curr_items|awk '{print $3+0}'`

#hit_rate=`echo "$get_hits*100/$cmd_get"|bc`

# echo "$hit_rate"

mem_percentage=`echo "scale=2;100*$bytes/$limit_maxbytes"|bc`

# echo $mem_percentage

mp=`echo "100*$bytes/$limit_maxbytes"|bc`

# echo $mp

# echo "$mem_percentage"

if [[ $mp -lt $1 ]]

   then

   echo "OK - mem_percentage is 0$mem_percentage% | mem_percentage=0$mem_percentage%; bytes=$bytes; limit_maxbytes=$limit_maxbytes; threads=$th; curr_items=$ci; curr_connections=$connections"

   exit 0

fi

if [[ $mp -ge $2 ]]

   then

   echo "Critical - mem_percentage is 0$mem_percentage% | mem_percentage=0$mem_percentage%; bytes=$bytes; limit_maxbytes=$limit_maxbytes; threads=$th; curr_items=$ci; curr_connections=$connections"

   exit 1

fi

if [[ $mp -ge $1 ]]

   then

   echo "WARNING - mem_percentage is 0$mem_percentage% | mem_percentage=0$mem_percentage%; bytes=$bytes; limit_maxbytes=$limit_maxbytes; threads=$th; curr_items=$ci; curr_connections=$connections"

   exit 2

fi