shell监控脚本-监控memcache

shell监控脚本-监控memcache

注意:请先参考 shell监控脚本-准备工作,监控脚本在 rhel5 下测试正常，其它版本的linux 系统请自行测试
#监控memcache

cat chk_memcache.sh
#!/bin/bash
#
#script_name:chk_memcache.sh
#check memcache
#
#last update 20130320 by dongnan
#bbs# http://bbs.ywwd.net/
#blog# http://dngood.blog.51cto.com
#
#(echo "stats";sleep 2) | telnet IP 11211
#Trying IP...
#Connected to IP (IP).
#Escape character is '^]'.
#STAT pid 26090
#STAT uptime 3179206
#STAT time 1363157551
#STAT version 1.2.6
#.................
#STAT pointer_size 64
#STAT threads 1
#END
#Connection closed by foreign host.
#
#printf "stats\r\n" | nc IP 11211
#
#nc -z bbs.ywwd.net 80 && echo $?
#0
#nc -z bbs.ywwd.net 81 || echo $?
#1
#variables
nc=/usr/bin/nc
usleep=/bin/usleep
echo=/bin/echo
sh_dir=/root/sh/
crondir=${sh_dir}crontab
source ${sh_dir}CONFIG
hosts="$MEMCACHE_HOSTS"
check_count=8
fault_count=4
#main
#主循环遍历机器
for memcache in $hosts ;do
flag_file=${crondir}/log/${memcache}.memcache
log=$crondir/log/memcache_error.log
#true
if [ $(echo "stats" | nc -w 2 "$memcache" 11211 | wc -l) -gt 2 ];then
#flag
    if [ -f $flag_file ];then
        #sms
        #for mobile in $MOBILES; do
            #$echo "$memcache memache ok" | /usr/local/bin/gammu --sendsms TEXT "$mobile" -unicode
        #done
        #email
        for mail in $MAILS;do
            echo "$memcache memcache ok" | mail -s "$memcache memcache ok" $mail
        done
        #delete flag
        test -e "$flag_file" && rm -f "$flag_file"
    fi
#false
else
#flag存在,跳过本次循环
    test -e $flag_file && continue
check_failed=0
    #
    for((i=1;i<="$check_count";i++));do
check_date=$(date '+ %F %T')
        #
        if [ ! $(echo "stats" | nc -w 2 "$memcache" 11211 | wc -l) -gt 2 ];then
            #
            ((check_failed++))
            #error.log
            $echo "$(/bin/date +'%F %T') $memcache $check_failed fault" >> "$log"
            #
            $usleep 300000 || sleep 1 || sleep 1
        fi
    done
    #大(等)于fault_count发送报警
    if [ "$check_failed" -gt "$fault_count" ];then
         #sms
         #for mobile in $MOBILES;do
             #$echo "$memcache memache error" | /usr/local/bin/gammu --sendsms TEXT "$mobile" -unicode
             #/bin/date +'%F %T' && $echo "$memcache memache error"
         #done
         #mail
         for mail in $MAILS;do
             echo "$memcache memcache error" | mail -s "$memcache memcache error" $MAILS
         done
         #log
         echo "$check_date $HOST memcache error" >> "$log"
         #flag
         $echo "$memcache memache error" > "$flag_file"
    fi
#主if结束
fi
#主循环结束
done

#
结束
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