What's the best practice for dealing with hanging/zombified queries?

Right now I have 6 zombified queries in the queues. It’s an eyesore :stuck_out_tongue:

How do I get rid of them or do they really matter? :thinking: Are they taking up spaces in the queue and eventually leading to some kind of failure? They are gone if I do FLUSHALL in redis. But I don’t want to do that because I’ll have to restart everything (webserver, scheduler, workers, etc.)