Questions tagged [rabbitmq]

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70 views

Moving single tenant application with queue to multi tenants web application

I need to move a single-tenant web application to a multi-tenant (about 100 tenants) web application. Tenants are going to share the same application but each tenant is going to have its own database (...
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3answers
68 views

Rabbitmq and multiple subscribers

Is it possible for a queue to have multiple consumers? I am working on a system where a single queue needs to be accessed by multiple consumers for different micro-services. Is it possible for the ...
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1answer
69 views

Implementing RESTful API in front of Event based microservices

I'm working on a system that implements multiple microservices which communicate via a RabbitMQ messaging bus. These microservices are created using python with the pika library (to publish messages ...
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0answers
28 views

RabbitMQ consumer for multiple services

I want to create single consumer application for multiple queues. I want to store queue names in config file, and stop listening to queues/exchanges that were removed from it(and start listening to ...
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2answers
123 views

How to send queue messages to one queue in rabbitmq?

I want to use rabbitmq to share domains events between microservices. Due to the fact that queues are round-robin, I need to define one queue per event source and event consumer. For example, cars-ms ...
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0answers
22 views

Consumer triggered entity data agregation

I am currently using RabbitMQ to aggregate the output of various data sources. Functionally the process is the following: The user enters a product name. The request is sent to the different sources ...
1
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1answer
57 views

How do I negotiate messages to avoid errors resulting from duplicate messages?

My system looks the following: I have N message producers, N RabbitMQ instances, N message consumers and 1 service. Producers produce the same messages while consumers consume the same messages. Here ...
2
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0answers
40 views

Distributing tasks to several clients

I describe a very very simple scenario. I try to develop a system where many machines can help another one (server). I tried RabbitMQ and Redis, but both don't fulfil all requirements. I have 1-...
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1answer
169 views

Data replication with microservices using a messaging broker

I have a microservice based application like so: User.Microservice - stores , user information. Product.Microservice - stores products that user created. Order.Microservices - stores product orders ...
2
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0answers
83 views

Data pipeline architecture: airflow triggered by message broker

Let us say we have: a web app with a Postgres DB that produces data over time, another DB optimized for analytics that we would like to populate over time. My goal is to build and monitor an ETL ...
0
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1answer
178 views

What's the use of event sourcing and asynchronous message queues for sending commands

In short: Out of order commands end up with out of order events, so does the ordering of the events matter in such situations? Since we are uncertain about the order of commands when an asynchronous ...
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0answers
90 views

MQ integration: How to notify consumers of upcoming message format changes?

We have multiple microservices communicating over MQ. As MQ messages are the interface/contract between the services, whenever we make changes to the MQ message published by a service we need to make ...
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2answers
147 views

Best design for a AMQP work queue

I have a system where a user uploads a file to import some users but it's necessary to do some validations and this take some time. I would like to create a work queue with RabbitMQ and the user will ...
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1answer
142 views

RabbitMQ Consumer Architecture

I have been investigating using RabbitMQ for a publish/subscribe pattern across micro-services where aysnc calls are appropriate but I am having trouble understanding some concepts and could not find ...
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0answers
38 views

How many exchanges when using scatter gather and CQRS?

I am trying to learn more about CQRS and enterprise integration in my spare time. I have created an application, which uses CQRS and the Scatter Gather Pattern. There are two web APIs for the CQRS ...
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1answer
55 views

Queue based indexing & multiple languages

I'm thinking about refactoring my content indexing process to queues. Right know updates happen directly when editors change content. It is difficult to do maintance works on the search engine too ...
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0answers
39 views

AMQP integration

I’m trying to make a AMQP integration layer for my app. This layer would only consume messages from my customer’s queues and the result would be a specific action in my application. My application is ...
3
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0answers
125 views

Data processing pipeline design for processing data

I have a use case for which I need to build a data processing pipeline Customer contact leads data coming from different data sources like csv, data base, api has to be first mapped to a universal ...
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1answer
468 views

RabbitMQ: how to achieve scalable one-to-one communication?

I'm trying to use RabbitMQ for two-way one-to-one communication between clients and servers. So, Client 1 should be able to communicate only with Server 1, and vice versa: The servers stay always ...
2
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1answer
210 views

MQ Architecture: How to handle old messages in the queue and releasing a consumer/producer upgrade

So for example if I have a producer that sends a message {id: 1} to a consumer that expects that json object. And there's a ton of messages sitting in the queue waiting to be processed. I'm also ...
-1
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1answer
64 views

Writing a distributed chat logger

I'm trying to write a very high scale IRC logger that can handle like 1k messages per second. My Database of choice is cassandra and maybe later I might look into scylladb. My Question is how do I ...
1
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1answer
443 views

Message Broker vs. iPaaS

Does anyone have suggestions/recommendations/guidance they can offer on when to use a message broker like RabbitMQ/Kafka vs. an iPaaS solution like Mulesoft/Jitterbit/Dell Boomi/Workato? Can they ...
6
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2answers
818 views

Fair distributed task scheduling with RabbitMQ

Problem: A single client of our system can completely flood all available resources with a massive workload. You can consider we have only one queue, and anyone can schedule any amount of work in it. ...
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3answers
1k views

Pull important messages from DLQ queue and save them in a relational database, to be analyzed and sent back later. Is it a good idea?

My project has a integration with a external system. We need to send some important informations to this system. For this, we create a micro service to connect to this external system. This micro ...
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1answer
463 views

asp.net Core 2 MVC - best way to send 1000s of emails every day

We need to send 1000s (under 10,000) per day for a few years. The data is in a SQL Server database - we have many asp.net MVC 5 and .net CORE 2 MVC sites on a Windows 2012 R2 server on IIS. The ...
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1answer
223 views

How to architect master/slave store/messages and de-duplication?

To clarify, as I'm not entirely sure how to summarise in the title. I have a redis cluster and a redis-backed scheduler (similar to sidekiq/resque, etc). My redis cluster has a master and a couple ...
3
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0answers
310 views

RabbitMQ: Topics and Persistence/Durability

Right now I'm using Direct Exchanges (i.e. one queue per "topic", pretty much pushing messages directly to a queue). This works OK, but I'd like the flexibility of working with Topic Exchanges, ...
1
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2answers
862 views

Architecture for Queuing based technology in a Micro-Service, Multi-Tenant Environment

Hopefully the title is not painfully obscure, but as it indicates, I'm really looking for advice on my architecture proposal, as the current architecture is subject to concurrency issues, performance ...
2
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1answer
195 views

What is the better place to create the Binding and Queue on RPC communication: Consumer or Producer?

I was talking with part of my team about the responsibility for who own the Binding and Queue creation. We are using Spring framework. In async communication they agree that the responsability to ...
8
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1answer
2k views

Making API calls with celery

I'm designing a system for a client where the requirements are: they upload a JSON file (one object/line) make a call to an API with the JSON object as the payload record the state (success/failure) ...