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Questions tagged [message-bus]

68 questions
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Liferay Message Bus between two portlets

I am having problems with the Message Bus, Hope you can help me. I have 2 portlets In the portlet 1 a regiostr all the listner and the destinations
Marco Leo
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Serial processing of a certain message type in Rebus

We have a Rebus message handler that talks to a third party webservice. Due to reasons beyond our immediate control, this WCF service frequently throws an exception because it encountered a database deadlock in its own database. Rebus will then try…
JulianR
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Membus and Simple Injector - Wiring Command Handlers automatically by interface

I have seen the IoC feature in Membus that i have tried to hookup to Simple Injector IEnumerable IocAdapter.GetAllInstances(Type desiredType) { var found = SimpleInjectorContainer.GetAllInstances(desiredType); return found; } The idea is…
morleyc
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How to deploy MessageBus in Liferay?

Written in Liferay Documentation 6.1 on using Message Bus, Configuration of Message Bus is done using the following files: WEB-INF/src/META-INF/messaging-spring.xml - Specifies your destinations, listeners, and their mappings to each other …
ton
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Python Choice for Message Bus Between Objects

I need a message bus framework that would allow two Python objects to communicate. What are some of the existing frameworks I could use? I think DBus is overkill at this point (having to involve an external daemon).
Richi
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Why does RabbitMQ becomes unresponsive?

RabbitMQ 3.7.13 on Microsoft Windows Server 2012 R2 Standard 32GB RAM 48GB page file Very low utilization - 10 queues , 20 clients , hundreds of messages per day , < 1MB size Ran fine for 1 year then started becoming unresponsive in a consistent…
BaltoStar
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Performance gains when using the exact same encryption/decryption mechanism for everyone participating in message-exchange via nats-server?

Essentially what the subject says. I was wondering if there are there benefits to be gained performance-wise by using the same encryption/decryption mechanism when clients communicate via messages sent-to/received-from the same nats server. I have…
XDS
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Is it a good practice to create a channel for each user in redis message bus

We are using redis message bus and handling messages using a channel. But if our application is deployed in multiple instances then the request and response is passed to all the instances. To avoid this scenario which of the below approach is…
Abinash Panda
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RabbitMQ+MassTransit: how to cancel queued message from processing?

In some exceptional situations I need somehow to tell consumer on receiving point that some messages shouldn’t be processed. Otherwise two systems will become out-of-sync (we deal with some outdates external systems, and if, for example, connection…
Tenek
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Watchdog for Messaging Bus

So I started to work in a semiconductor company as a working student and they gave me the task to write a watchdog for the tibco messaging bus. It should show the workload of the messaging bus, if it is busy at the moment or not. I havent figured…
NECben067
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Using Azure Service Bus to communicate between 2 organizations

We wish to decouple the systems between 2 separate organizations (as an example: one could be a set of in house applications and the other a set of 3rd party applications). Although we could do this using REST based APIs, we wish to achieve things…
Raj Rao
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Understanding Enterprise Integration Messaging Patterns

I'm currently reading Enterprise Integration Patterns: Messaging book. But I've still difficulties to understand patterns and their applications, especially when looking at existing implementations such as NServiceBus, MassTransit and in another…
Trent
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Spring state machine as a message bus

I am currently checking spring state machine as an implementation of a custom service bus. I have 2 questions : How do I configure a transition based on timer where the time will be based on the model. For example : if I want to delay a message…
pohes
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How to publish Threshold event of combined connections to Message Bus?

What's the topic of connection threshold events? How do I listen to connection count threshold events over the message bus, and how do I figure out what is the current connection count?
Jeffrey
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Publishing on a specific partition of a topic using pykafka

How is it possible in pykafkato publish a message on a specific partition of a topic. In the following piece of code test topic has four partitions and I'm intending to write each message in one of them but apparently it's not working that…
ahj
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