Message Broker
Message Broker - Related Videos
07:48
Within-subjects Repeated-measures Design
0 Views •
2023
Source: Laboratories of Gary Lewandowski, Dave Strohmetz, and Natalie Ciarocco—Monmouth University A within-subjects, or repeated-measures, design is an experimental design where all the participants receive every level of the treatment, i.e., every independent variable. For example, in a candy taste test, the researcher would want every participant to taste and rate each type of candy. This video demonstrates a within-subjects experiment (i.e., one where there is an independent variable with...
09:26
Persuasion: Motivational Factors Influencing Attitude Change
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2023
Source: William Brady & Jay Van Bavel—New York University Decades of social psychological research sought to understand a fundamental question that pervades our social life including politics, marketing and public health; namely, how are people persuaded to change their attitudes towards an idea, person, or object? Traditional work found that there are key factors that influence whether persuasion is successful or not including the source of the persuasive message ("source"), and the...
02:20
Routes of Persuasion
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2020
Persuasion is the process of changing our attitude toward something based on some kind of communication. Much of the persuasion we experience comes from outside forces. How do people convince others to change their attitudes, beliefs, and behaviors? What communications do you receive that attempt to persuade you to change your attitudes, beliefs, and behaviors? Yale Attitude Change Approach The topic of persuasion has been one of the most extensively researched areas in social psychology...
05:04
Three-Chambered Array-Based Impedance Assay: A Real-Time Analysis Technique to Assess Invasive Potential of Cancer Cells by Measuring Electrical Impedance
0 Views •
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This video describes an invasion assay using a three-chambered array based on electrical impedance. This technique measures the invasive potential of cancer cells under the influence of soluble factors secreted by the resident stromal cells in tumor microenvironments.
07:33
Therapeutic Effectiveness of a Dietary Supplement for Management of Halitosis in Dogs
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Cited by 20 •
2015
We describe a simple approach for diagnosis of halitosis in dogs as well as a dietary approach for its management. This protocol may be extended to the management of halitosis in humans in the near future.
FAQs
Acknowledgments provide a signal that a delivered message has been handled, while retries allow another delivery attempt after a failure. Delivery guarantees describe the reliability expected from that exchange. Together, these mechanisms help engineers manage unsuccessful processing and reduce message loss, but they also make message failures and delivery behavior important parts of system design.
Queues organize messages for delivery to consumers, making them useful when messages should be handled through a managed sequence. Topics support publication to subscribers, making them appropriate when multiple interested consumers should receive event information. Choosing between them depends on whether the communication pattern centers on queued work or distribution to subscribers.
Asynchronous communication separates the timing of message production from message consumption. A producer can place information into the broker while a consumer processes it independently, reducing the need for both components to be available at the same moment. This separation helps systems absorb uneven workloads and limits the coupling created by direct application connections.
Throughput shows how much message traffic the system handles, while latency indicates how long delivery takes. Message-failure measurements reveal unsuccessful exchanges that may require investigation or recovery. Tracking these signals together gives engineers a practical view of capacity, responsiveness, and dependability as communication demands increase.
A producer first sends a message to the broker, which then places it in a queue or publishes it to a topic. The broker routes that message toward an appropriate consumer or set of subscribers. Acknowledgments, retries, and delivery guarantees govern what happens after delivery, especially when processing does not succeed.
Engineers commonly select this approach when distributed systems or microservices must exchange information without direct connections. It is also useful in event-driven architectures, where components respond to published messages, and in systems that must smooth uneven workloads. The broker provides a communication layer that supports separation between independently operating software components.
A broker can serve as an intermediary between applications that differ in their implementation or communication arrangements. Producers and consumers exchange messages through the broker rather than requiring a direct connection to one another. This arrangement simplifies integration across heterogeneous applications and gives engineering teams a shared point for routing, delivery management, and observation.