Laravel: 5.5 Horizon: 1.2.3 php: 7.2 ubuntu: 16.04, LAMP
I don't know if this issue is related to redis server of horizon, but what I'm sure that this happens. When using database driver the /tmp starts to fill with tmp php files with pattern like this php34gs1 phpwrd42 after the queue is processed the /tmp is cleaned and reverted.
However when I use redis driver with horizon the /tmp directory is filled untill my my 60GB server is full and I only resolve this either by deleting them manual from cli or worse to reboot server.
Disk usage with redis driver:
Disk usage with database driver:
php files sample: