travisf
Exq difference between enqueue_at and enqueue_in
I’m curious about the differences between enqueue_in and enqueue_at, the Exq docs aren’t too clear on this.
Marked As Solved
ananthakumaran
So, I’m wondering if there is a way to say “run this job anytime you can after a specific time”.
It works exactly as you described. Enqueue_in/at puts the job in a ZSET with scheduled time as the score. When the current time is > the scheduled time, exq will push the job to the end of the queue. The exact time of execution depends on how many jobs are pending in the queue.
That’s a difficult question, I also don’t generally use Exq, I just have one project I maintain that uses it. From what I can tell in the config the concurrency is set to 3 and then job queues each have their own concurrent values set (max is 3).
Concurrency is handled per queue, the global config is just a fallback value to be used if you don’t specify per queue concurrency.
So I’m not sure if we’d be handling 3 jobs at once or 11 (sum of all concurrencies per queue)
it would be the later
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benwilson512
I don’t use Exq myself, but the general way these queueing systems is that the job becomes available to a worker at the set time, but then it does still require that there is a worker free to fetch it.
That basically is how it works. At the time, the job becomes available, and it’ll be processed when a worker is free. How many jobs are you trying to handle?
benwilson512
I believe enqueue_at: time means "enqueue this job to run at a specific time time. enqueue_in: interval would mean “enqueue to run interval seconds into the future from now”.
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