Anyway, the other day I kicked off a quarterly scan of my network, and most of the scans finished, but after a while the server was accidentally rebooted by one of my systems administrators and a number of scans got stuck in a stopped state. When I tried to resume the scan, Greenbone would just spin and nothing would happen! Annoying right?
Well, the issue turns our to be a Redis cache issue. It apparently needs to be flushed when stuff like that happens. To flush that cache run the following from the terminal:
sudo redis-cli -s /var/run/redis/redis.sock FLUSHALL
After running that, I was able to kick my scans off again!