用memcached的时候找key找不到，写了个命令来找找

 for i in $(seq 30); do echo "stats cachedump $i 0" | nc 192.168.88.150 11211 | grep groupServer; done

printf 'stats items ' | nc 192.168.88.150 11211 | cut -d':' -f2 | uniq | xargs echo | tr -d 'END' | xargs -n 1 | sed 's/^/stats cachedump /g' | sed 's/$/ 0/g' | nc 192.168.88.150  11211