Kafka Streams Interactive Queries is a feature of Kafka Streams that allows applications to query the state of a Kafka Streams application in real-time. The role of Kafka Streams Interactive Queries is to enable real-time querying of the state of a Kafka Streams application, providing applications with a fast and efficient way to access the state of a Kafka Streams application. Here are some of the key roles of Kafka Streams Interactive Queries:
1. Real-time querying: Kafka Streams Interactive Queries allows applications to query the state of a Kafka Streams application in real-time, without the need to wait for batch processing or other delayed processing.
2. Stateful processing: Kafka Streams Interactive Queries enables stateful processing within a Kafka Streams application, allowing applications to maintain and update state in real-time as data is processed.
3. Distributed processing: Kafka Streams Interactive Queries supports distributed processing across a Kafka cluster, allowing applications to scale horizontally and process large volumes of data in parallel.
4. Low-latency access: Kafka Streams Interactive Queries provides low-latency access to the state of a Kafka Streams application, enabling fast and efficient querying of state in real-time.
5. Fault tolerance: Kafka Streams Interactive Queries supports fault-tolerant processing, ensuring that stateful processing continues even in the event of a node failure or other system issues.
Overall, the role of Kafka Streams Interactive Queries is to provide applications with a fast and efficient way to query the state of a Kafka Streams application in real-time. By enabling real-time querying, distributed processing, low-latency access, and fault tolerance, Kafka Streams Interactive Queries enables stateful processing within Kafka Streams applications, allowing organizations to build powerful real-time data processing pipelines that can handle large volumes of data with high efficiency and reliability.