添加Cassandra 12.x的apt仓库
sudo sh -c 'echo "deb http://www.apache.org/dist/cassandra/debian 12x main" >> /etc/apt/sources.list.d/google.list'
gpg --keyserver pgp.mit.edu --recv-keys 4BD736A82B5C1B00
gpg --export --armor 4BD736A82B5C1B00 | sudo apt-key add -