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by jsmeaton 434 days ago
Cloudtasks are excellent and I’ve been wanting something similar for years.

I’ve been occasionally hacking away at a proof of concept built on riverqueue but have eased off for a while due to performance issues obvious with non-partitioned tables and just general laziness.

https://github.com/jarshwah/dispatchr if curious but it doesn’t actually work yet.
1 comments
bgentry 433 days ago
Developer of River here ( https://riverqueue.com ). I'm curious if you ran into actual performance limitations based on specific testing and use cases, or if it's more of a hypothetical concern. Modern Postgres running on modern hardware and with well-written software can handle many thousands or tens of thousands of jobs per second (even without partitioning), albeit that depends on your workload, your tuning / autovacuum settings, and your job retention time.
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jsmeaton 433 days ago
Perceived only at this stage, though the kind of volume we’re looking at is 10s to 100s of millions of jobs per day. https://github.com/riverqueue/river/issues/746 talks about some of the same things you mention.

To be clear, I really like the model of riverqueue and will keep going at a leisurely pace since this is a personal time interest at the moment. I’m sick of celery and believe a service is a better model for background tasks than a language-specific tool.

If you guys were to build http ingestion and http targets I’d try and deploy it right away.

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bgentry 433 days ago
Ah, so that issue is specifically related to a statistics/count query used by the UI and not by River itself. I think it's something we'll build a more efficient solution for in the future because counting large quantities of records in Postgres tends to be slow no matter what, but hopefully it won't get in the way of regular usage.

> Perceived only at this stage, though the kind of volume we’re looking at is 10s to 100s of millions of jobs per day.

Yeah that's a little over 100 jobs/sec sustained :) Shouldn't be much of an issue on appropriate hardware and with a little tuning, in particular to keep your jobs table from growing to more than a few million rows and to vacuum frequently. Definitely hit us up if you try it and start having any trouble!

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