Apache Kafka Streams
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Features
- Builds real-time stream processing applications on Kafka topics
- Filtering, transforming, aggregating and joining streams
- Windowing operations and complex transformations via a high-level API
- Low-latency per-record processing
- Distribution and fault tolerance
- Runs inside applications without a separate processing system
- Java and Scala support
- Automatic load distribution across application instances
Pricing Details
The Kafka Streams tool is based on being open source and completely free as part of the Apache Kafka project, where there is no cost associated with the tool itself, and any potential expenses related to the Kafka operating system itself or the cloud services that run Kafka such as Confluent Cloud or AWS MSK. The free plan provides full access to the tool with no usage or duration restrictions, and the ability to develop and run applications at no additional cost beyond the Kafka infrastructure. As for paid plans, there are no paid plans for Kafka Streams itself, and what may cost is running and managing Apache Kafka on a production environment either in the cloud or on local servers, depending on the service provider used.