This toot brought to you by me spelunking the #DelayedJob code trying to figure out why one of our workers was dying every 4 hours due to OOM’ing.

It's been years since I last used #DelayedJob. Like, the early 2010's or so? Back then it was a mix of DJ and #Resque. Then #Sidekiq came on the scene, I moved over pretty quickly.

Anyhow, the point is, I was under the impression that DelayedJob doesn't have a mechanism to recover from jobs that crash/SIGKILL’d (like, think OOM or something). And to be fair, DJ itself doesn't. But the ActiveRecord backend does, though it's not really advertised. https://github.com/collectiveidea/delayed_job_active_record/blob/97f26a3e1b82b338cd8270aad988c75b82ea5c86/lib/delayed/backend/active_record.rb#L57

#Ruby #Rails #OpenSource