Redis 查看所有 key 的 value 值所占内存大小

$ pip install rdbtools python-lzf
$ git clone https://github.com/sripathikrishnan/redis-rdb-tools
$ cd redis-rdb-tools
$ sudo python setup.py installCopy

$ whereis redis.conf
redis: /etc/redis.confCopy

$ cat /etc/redis.conf | grep dir | grep redis
dir /var/lib/redis
$ cat /etc/redis.conf | grep dump.rdb
dbfilename dump.rdbCopy

$ rdb -c memory /var/lib/redis/dump.rdb > /tmp/redis.csvCopy