Show HN: Lightweight Task queue on Erlang/OTP, SQLite-backed, no overengineering

Posted by ent1c3d 2 days ago

Counter45Comment8OpenOriginal

Setting up Kafka or such enterprise oriented software with their clusters or dedicated servers is heavy and bothering enough that most small teams or indie hackers skip it entirely and making compromise to use in-memory queues.

I wanted something in between: a persistent queue that is simple to run (one binary, which makes one sqlite db), gets real fault isolation and crash recovery due to Elixir, easy to inspect (open ezra.db in any SQLite browser and see every task), and requires no new client library - it speaks the Redis Streams wire protocol, so any Redis client in any language just works out of the box.

Very short demo video: [https://www.youtube.com/watch?v=MLYyD3DVWmE]

Comments

Comment by bhaney 1 hour ago

> This project is maintained by a single author and pull requests are not accepted

Save yourself the headache of people not reading this and just disable pull requests in the repo settings

Comment by abrookewood 5 hours ago

Congrats on the launch. Using the Redis protocol was a pretty clever choice. Does it have to run as a stand-alone server?

Comment by neoecos 6 hours ago

Oban is really awesome, are you inspired by it?

Comment by skrebbel 5 hours ago

Title said “no overengineering” so I doubt it.

Comment by xlii 2 hours ago

I would argue that Oban isn't overengineered.

If so should we also consider PostgreSQL overengineered?

It's a shame OP decided to use Elixir as base, many ecosystems don't have mature task queues (e.g. for Rust I had to roll my own: simple_queue) so the space IMO would be more welcoming.

On OTP doubt anything can even make a dent in Oban user base.

Comment by gamache 1 hour ago

Satisfied former Oban user here. Oban is engineered. Your use-case may be petty, though, like your comment.

Comment by cpursley 5 hours ago

This is nice. For those wanting to stay on Postgres for DAG type of workflows, check out pgmq based PgFlow: https://github.com/agoodway/pgflow

Comment by tenwz1 5 hours ago

good

Comment by anapeksha 2 days ago

[flagged]