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what's the difference between a message bus[1] and a message broker[2]
As i see, the only relevent difference is the picture used to represent each of one..
If there's some difference between then, please tell-me what.
If they are the same, plese tell-me why two concepts to refer the same functionality.
Thanks.
[1] http://www.eaipatterns.com/MessageBus.html
[2] http://www.eaipatterns.com/MessageBroker.html
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A Message Bus is a combination of a common data model, a common command set, and a messaging infrastructure to allow different systems to communicate through a shared set of interfaces.
A message broker (also known as an integration broker or interface engine) is an intermediary computer program module that translates a message from the formal messaging protocol of the sender to the formal messaging protocol of the receiver.
Amazon MQ is a managed message broker service for Apache ActiveMQ and RabbitMQ that makes it easy to set up and operate message brokers on AWS.
RabbitMQ is one of the most popular message brokers, with tens of thousands of users. It is a lightweight messaging system that can be deployed on-premises or in the cloud. Besides, it may be deployed in distributed and federated configurations to meet high-scale, high-availability requirements.
The message bus implies a common protocol spoken and understood by all participants. There is little to no logic in the bus. Usually the message is forwarded to all connected systems.
The hub-and-spoke architecture (or "message broker") has a central piece of software which understands the messages sent to it, can translate them, and forward them to the systems which need the information.
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