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I am wondering for advice on how to monitor an application with many genservers doing long-running work. Often we want to know “how many...
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I am looking for suggestions on the best way to handle ETL tasks in elixir or if I should just do these tasks in SQL + dbt + airflow.
I’...
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I’ve got an SQS message which triggers a large postgres query, the results of which are then processed in batches, performing a postgres ...
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Hello,
I’m designing a bidirectional friendship system where I store the data in a single dynamodb “Users” table.
For the record I only...
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suppose genstage have one producer and many consumer for push notification in a chat application and each consumer subscribe that one pro...
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I have a system that emits events, such as:
"record_updated", id: 6, company_id: 1
"record_updated", id: 2, company_id: 2
"record_update...
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Hi,
I am trying to build a gen stage that buffers incoming data, and sends it all to any new subscribed consumer.
Background: The GenSt...
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Hello, I successfully implemented the whole GenStage & Flow thingy, it is really awesome, so I want to continue with it for the next ...
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The (excellent) GenStage documentation includes a QueueBroadcaster module as an example for “a more robust implementation” with “tighter ...
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Problem:
As a first go at using GenStage, I’m building a simple task queue. Initially it used consumers that I would add explicitly in my...
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Hey everyone,
I have a GenStage producer that receives real-time events from a 3rd party websocket API and produces GenStage events. I w...
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So in the example given here :-GenStage – gen_stage v0.14.0 that of A → B → C I implemented that and saw that the consumer is able to con...
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Hello,
I would like to know if it would be possible to use GenStage.PartitionDispatcher but with dynamic partition management based on a...
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The GenStage documentation gives an “even distribution” warning… By my reading this is a problem if A, B, and C consumers have the same ...
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I need to process the same piece of data in multiple ways based on user provided calculations.
Am I correct in my reading of the docs th...
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Trending Over Three Years
I'm writing a GenStage producer which is designed to scrape a bunch of RSS feed urls, and return a stream of all Articles. The set of url...
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I have a Phoenix application that downloads (10MB+) files from another server on a specific user action, manipulates them, and then sends...
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First of all, I realize that both flow and broadway are built on top of genstage.
I find flow a bit confusing, compared to how broadway ...
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Hi guys,
I’m playing a bit with GenStage, after reading the blog post on elixir with a full case description, and watching the youtube J...
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Hi!
I have an Elixir application that is ingesting messages from a queue (AWS SQS). It is based off this design that uses GenStage.
T...
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I'm working on my first GenStage producer, and I want to unit test it as I write the handle demand method. I'm having trouble simplifying...
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I am beginning a proof of concept for an internal application to help promote Elixir. I would like to showcase the power and performance ...
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I’m trying to put together a plan for a library that I am working on whereby I need to provide an interface that allows the client to asy...
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Hi,
I’m struggling since a few days with a dysfunctional piece of code using GenStage.
I think I don’t fully grasp the handle/demand me...
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I'm fairly new to Elixir, and so far I'm finding it very exciting. So many of my concurrency problems seem to be solved in a simple, ele...
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Here is my system loaded up with work:
[Album] Imgu...
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We have ConsumerSupervisor which starts 1 child per event. Is it possible to use this as a :producer_consumer ?
[A] -> [B(1, 2, 3, 4...
New
Greetings,
I’m having a hell of a time trying to build a really simple script to collect chat messages and save them to the database… Un...
New
I have a rather expensive action (some PDF generation and upload to an other service) that occurs when related API endpoint is invoked. A...
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After hearing @josevalim’s keynote at ElixirConf, I got inspired to re-write our application’s data-processing pipeline (which works OK b...
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