memcache监控mctop安装

安装需要的环境

yum install libpcap-devel ruby-devel rubygems git
gem install ruby-pcap -v '0.7.8'
gem install bundle
gem install rake

下载源码安装

git clone https://github.com/etsy/mctop
cd mctop
bundle install
rake install

安装完毕
用法

Usage: mctop [options]
    -i, --interface=NIC              Network interface to sniff (required)
    -p, --port=PORT                  Network port to sniff on (default 11211)
    -d, --discard=THRESH             Discard keys with request/sec rate below THRESH
    -r, --refresh=MS                 Refresh the stats display every MS milliseconds
    -h, --help                       Show usage info

通过ifconfig查看网卡，我的是eth0。可以通过下面的命令监控

./bin/mctop -i eth0 -p 10021