This great answer on how to implement the traditional observer pattern in Rust concludes with an interesting alternative idea, namely using a broker pattern instead: There are other solutions, suc...

I am new to MQTT protocol. As I read through the document, I couldn't see any function to remove the published topic. My purpose is to allow the publisher to remove the published topic. Did I miss ...

After updated mac OS to Catalina 10.15.4 and XCode 11.4 and VS 2019 16.5.1 I can't pairing to mac from VS, there is getting the error in VS: "An error occurred while trying to start Broker ...". ...

So we decided to go with RabbitMQ as a message/event bus in our migration to micro-services architecture, but we couldn't find a definite answer on what is the best way of putting our queues, we ha...

I have recently started working on distributed computing for increasing the computation speed. I opted for Celery. However, I am not very familiar with some terms. So, I have several related questi...

Following Steve Copes "How to install the Mosquitto Broker on Windows", I created a password.txt file and encrypted it using the mosquiito_passwd utility. Then I edited the mosquitto.conf...

In Kafka, I would like to use only a single broker, single topic and a single partition having one producer and multiple consumers (each consumer getting its own copy of data from the broker)...

Hey everyone, I was wondering how would I start programming an interface to trading stocks in Etrade in python. I am attempting to make an automated trading bot, but there is no api publicly availa...

I have an Keycloak Broker and 2 Identity Providers running. Currently I saw the Username and Password fields and the 2 links to the configured Identity Providers at the broker login screen. The log...

Are kafka leaders partitions themselves or are they brokers? My initial understanding was that they were partitions which acted as read/write agents which then deffered their value to ISRs. Howeve...

What architecture and application development best practices must be followed in order to scale a TWX application? The majority of applications start with few devices but with time they quickly bu...

What's it responsible when using words “broker”, “agent“ and “proxy” in programming code? Are there any specical meanings in the Computer Technology? Any opinions or examples?

I am unable to integrate security to Kafka 1.0 with ssl enabled. Here are changes to my server.properties security.inter.broker.protocol=SSL listeners=PLAINTEXT://localhost:9092,SSL://localhost:9...

I've been trying to set up MQTT broker on windows but with not results. I am not very experience in this topic. I've downloaded the mosquitto files from http://mosquitto.org/download/ but I h...

I am trying to start the ActiveMQ 5.11 and I see a WARNING as below: WARN | Transport Connection to: tcp://127.0.0.1:40890 failed: java.io.EOFException My activemq.xml is as below: <transportCo...

I'm building a client/server pair in C++, and I've used the winsock for the communication. However, I'm not able to find any library in C++ by which I can implement something that, instead of sendi...

Is it possible to configure the broker to insert a timestamp header if it is missing in the message? So if the publishing client does not add the timestamp header, can the broker insert it with a t...

I tried to find details about broker, topic, queue; but couldn't get good results. I tried to Google on these topics but couldn't find much. Can somebody help explaining these concepts.

I am considering mosquitto for a MQTT broker. From what I've read, I realized that Mosquitto doesn't support Horizontal Scaling. So far all other criteria of my requirements can be met with Mosqui...

Since specifying the clienID is only a feature in the class MqttAndroidClient, and can not be specified when using classes IMqttClient and IMqttAsynchClient. what is the real purpose of connecting...

I want to set the timeout period for the Acknowledge i.e. if the acknowledge is not received by the broker for the particular message from consumer within a time period then, the broker should rese...

Could someone explain the Broker pattern to me in plain english? Possibly in terms of Java or a real life analogy.

I'm trying to process some tasks using celery, and I'm not having too much luck. I'm running celeryd and celerybeat as daemons. I have a tasks.py file that look like this with a simple app and task...

I'm refering to the 'A Request-Reply Broker' in the Zeromq documentation: http://zguide.zeromq.org/chapter:all I'm getting the general gist of the app: it acts like an intermediary and routes mess...