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Distributed Message Service (DMS)

Communication between applications

Logo Kafka

The Distributed Message Service (DMS) is based on Apache Foundation´s Kafka  solution and enables communication between different applications, for example in order to synchronize data and processes. The DMS works like a postal service within the cloud: Senders and receivers do not need to be active at the same time. Applications that send messages in the form of JSON objects do not need to wait for acknowledgment of receipt from other applications – the DMS creates a processing queue and sends the message at a later point. This enables coordination between individual components of a cloud application, for instance in order to synchronize the status of data. This is a sensible solution for large, distributed application landscapes.

Distributed Message Service in the Open Telekom Cloud

DMS works in distributed and highly scalable computing clusters and comes with standardized RESTful APIs that are used to access the generated messages. The queued messages are stored on different partitions,and the cloud-native service can be used without any additional hardware or software resources. The DMS can be controlled via the web console, OTC Terraform Provider, or the OpenStack command-line interface. The generated message queues or Apache Kafka Premium clusters are processed in sequence in accordance with the first-in-first-out principle. In addition, the DMS supports dead letter queues (in which messages that could not be delivered are stored).

Distributed Message Services as a shared or dedicated solution

The Open Telekom Cloud offers message queues as part of a shared model, meaning that computing resources are shared between customers and costs are assigned based on the number of API calls and queues triggered.

Apache Kafka Premium, on the other hand, offers a dedicated, managed cluster solution with maximum availability at the touch of a button. Compared to message queues, Kafka Premium offers a guaranteed data throughput for messages, which is essential for enterprise solutions. Kafka Premium can be used both internally via the secure OTC network, and externally via the internet. The cluster costs depend on your desired cluster size and are incurred on an hourly basis, regardless of the number of API calls and queues. This makes it easy for you to calculate the cost of your business case.

Further technical information on the DMS can be found in the online documentation or in the release notes.

New Features

Kafka Premium now with Kafka 2.3 available (beta)
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Kafka Premium now with Kafka 2.3 available (beta phase completed)
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