[Redis] ubuntu 16.04
更新日期:https://www.digitalocean.com/community/tutorials/how-to-install-and-configure-redis-on-ubuntu-16-04
有兩個地方要修正
1. sudo systemctl start redis
=> Failed to start redis.service: Unit redis-server.service is masked.
執行
$ sudo systemctl unmask redis-server.service
2. sudo systemctl enable redis.service
=> Failed to execute operation: Too many levels of symbolic links
執行
$ sudo systemctl enable redis-server.service