Questions tagged [broker]
The broker tag has no usage guidance.
broker
395
questions
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23
views
Cannot connect to MQTT broker via SmallRye Reactive Messanging MQTT connector in Quarkus
I am trying to connect MQTT connector to my broker.
Broker is listening on ws://localhost:1234
I am using a Quarkus as my backend framework. The configuration for my MQTT connector is set as:
# ...
- 93
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0
answers
12
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Zookeeper Error - server is not starting upon the using zookeeper-server-start.bat with the required properties file as input
I am trying to execute the following command:
zookeeper-server-start.bat ....\config\zookeeper.properties
while being inside the kafka\bin\window directory
and while running the command I am getting ...
0
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1
answer
43
views
Clarification on behavior of QoS 1 and 2 if subscriber is unavailable
The general flow of MQTT is: producer ---> MQTT Broker ---> consumer.
Assume that the MQTT Broker is always up and running but consumer is temporarily unavailable.
If a producer sends a message ...
- 314
1
vote
1
answer
57
views
Getting the response from a knative broker call
I'm using Quarkus framework and the library called Funq with knative event bindings... Meaning that, I'm listening to Kubernetes cloud events in my Quarkus application and it's working properly.
Just ...
0
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1
answer
134
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MQTT multiple subscribers to one topic
I've recently started using the MQTT broker in AWS, where one device receives messages to control a wind turbine. Now, I wanted to expand this control by connecting a second device to the broker topic....
- 127
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39
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After updating to Confluent 7.5 brokers can no longer connect to Zookeeper
The goal is to update the Kafka cluster to version 7.6 in order to migrate to Karft.
A few key facts about the cluster:
No Docker / Podman
3 ZooKeeper (single VMs in vSphere)
3 brokers (individual ...
- 71
-2
votes
1
answer
123
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not able to trigger broker app for authentication
Hello everyone i need help In one of our client projects, we implemented MSAL for authentication. However, we encountered an issue where the iOS/iPad operating system uses Safari browser as its ...
2
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0
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66
views
How would the Broker pattern look like in Rust?
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, such ...
- 25.6k
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70
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Unable to connect "broker:29092" kafka on docker
This is the .yml file i made based on project on youtube.
version: '3'
services:
zookeeper:
image: confluentinc/cp-zookeeper:7.5.0
hostname: zookeeper
container_name: zookeeper
...
0
votes
1
answer
62
views
Mosquitto bridge with TSL/SSL Support: OpenSSL
I'm trying to set up a bridge between two mosquitto brokers. And I'm having trouble configuring the config files and generating the required certificates.
Broker A: Acts as a bridge, on a local ...
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1
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149
views
Why can't the partition leader election logic in Kafka cluster sit in Zookeeper rather than controller broker doing it?
Quoting this answer -
kafka uses zookeeper for a few things:
cluster membership - the live brokers of a cluster are those who have
ephemeral ZK nodes leader election - election of the kafka broker ...
1
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0
answers
45
views
Improving throughput of Kafka consumer pull when using multiple consumers
I am running 3 red panda's brokers with replication on 3 k8s nodes, this works perfectly fine. now I am connecting with java client and try to compare performance to learn more about configuration. ...
1
vote
0
answers
151
views
Use WebSocket in .Net6.0
I have a question about how I can also enable the use of WebSocket in my .net6.0 (Project Sdk="Microsoft.NET.Sdk") application
I have a class that creates a broker with logic for processing ...
- 11
1
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39
views
oanda PRICE_PRECISION_EXCEEDED in C#
I ran into an issue when placing limit order with Oanda. Despite rounding price to 5 digits like
var price = Math.Round(1.091m, 5, MidpointRounding.ToZero);
I'm getting this weird reject reason:
{&...
- 21
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1
answer
416
views
Can a PLC connect via MQTT without a broker?
I have to connect a device that sends the information via MQTT, and then I have to use my PLC to do so. I already did it using a virtual broker on a Raspberry Pi, but I need a more reliable solution ...
- 39