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The second step adds to the first by having the namespace be global. The figure below shows two KStream instances on potentially different servers and two state stores each backed up by their own Kafka topic. An additional proposed component in the diagram is a logical discovery component. Conceptually this component provides a lookup API that keeps track of the mapping between a state store name and the KafkaStreams instance that owns that state store.
Hence, the discovery API is part of the KafkaStreams instance. The API will provide three methods:
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