Show HN: Lightweight job scheduling for Node.js (opens in new tab)

So if you reboot the server, you just need to make sure that you call agenda.start() again. This will start the job processor which looks for jobs that have come due in the database and process them. agenda.every('3 minutes', 'job name') is a special case in which it will only schedule that job once (because if you think about it, otherwise every time you ran that line you'd get a new job... This makes it so you can define it in the same file as where you call agenda.start() and not end up defining new versions of those repeating jobs every time the file gets ran). Hope this makes sense/helps.

Very cool. How robust is the english parsing? For example, would it understand something like "The first wednesday of every month"? Either way I will definitely check it out.

I thought the same. For redis there's Kue, which looks a lot more feature complete.

https://github.com/learnboost/kue

The choice of Mongo vs Redis was intentional. Without configuration Redis doesn't guarantee persistence as well as Mongo. Since Redis is often used for non-critical data such as sessions I didn't want to enforce sacrificing performance of sessions for persistence.

I haven't tested on a laptop be honest. Interesting point. What is atrun? I'll do some research and see if I can do anything about it... For reference node idles at about 3% CPU on my dev-box.