Show HN: Redis-pipe – Use Redis lists like Unix pipes

[morgenkaffee]

https://github.com/lukasmartinelli/redis-pipe

[fprotthetarball]

See this for more inspiration (using pub/sub):

https://github.com/whee/rp

[morgenkaffee → fprotthetarball]

Ah that's the same idea! Wished I found that before. Thanks man.

[fprotthetarball → morgenkaffee]

The interesting thing about rp is that you can use it as a pipeline in your other Go applications, as the Redis pub/sub "pipe" is exposed as a normal Go io.Reader/io.Writer interface. Might be something worth expanding on somehow.

[nissimk]

Why are you using LPUSH/LPOP instead of PUBLISH/PSUBSCRIBE?

I guess you get storage that way, but only one consumer of each message. It would be nice if it was optional in case you had a different application where you need to have multiple subscribers to the same topic.

[morgenkaffee → nissimk]

Yes you're right. I can create a flag --publish and --subscribe.

[waitingkuo]

What's the benefit to use Redis pipe instead of Unix pipes?

[bytesandbots → waitingkuo]

I guess it might be very useful in a cloud like environment where you use this set up to pipe data across scaled up servers.

[morgenkaffee → bytesandbots]

I use it as a poor man's job queue.

cat jobs.txt | redis-pipe jobs

An then on several workers: redis-pipe --count 10 jobs | python do-work.py | redis-pipe results

An then in the end: redis-pipe results > results.txt

Or you can use it as simple logging mechanism: tail -f /var/log/syslog | ./redis-pipe logs

[eddd → morgenkaffee]

Poor man's job queue is celery with redis backend i guess.

[morgenkaffee → eddd]

Mine is even more poor :)