sudo apt install redis-server

Setting up redis-server (2:3.0.7-1~dotdeb+6.1) ...
Job for redis-server.service failed because a timeout was exceeded. See "systemctl status redis-server.service" and "journalctl -xe" for details.
invoke-rc.d: initscript redis-server, action "start" failed.
dpkg: error processing package redis-server (--configure):
 subprocess installed post-installation script returned error exit status 1
Errors were encountered while processing:
 redis-server
E: Sub-process /usr/bin/dpkg returned an error code (1)

redis-server.service: PID file /var/run/redis/redis-server.pid not readable (yet?) after start-post: No such file or directory

Filesystem      Size  Used Avail Use% Mounted on
udev            3,9G     0  3,9G   0% /dev
tmpfs           789M  9,6M  780M   2% /run
/dev/sda2       909G   24G  840G   3% /
tmpfs           3,9G  175M  3,7G   5% /dev/shm
tmpfs           5,0M  4,0K  5,0M   1% /run/lock
tmpfs           3,9G     0  3,9G   0% /sys/fs/cgroup
/dev/sda1       511M  3,6M  508M   1% /boot/efi
tmpfs           789M     0  789M   0% /run/user/118
tmpfs           789M   12K  789M   1% /run/user/1000

Filesystem      Size  Used Avail Use% Mounted on
tmpfs           789M  9,6M  780M   2% /run