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Kafka is a distributed system that provides a highly scalable, elastic, fault-tolerant, and secure solution to event streaming.
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According to WIKIPEDIA, a database index is a data structure that improves the speed of data retrieval on a database table at the cost of additional writes and storage space to maintain the index. One of the most used data structure to implement index is B-tree. Generally, there are two types of index: clustered index and non-clustered index.
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