rocksdb

Why Apache Kafka Streams uses RocksDB and if how is it possible to change it?

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RocksDB is used for several (internal) reasons (as you mentioned already for example its performance). Conceptually, Kafka Streams does not need RocksDB — it is used as internal key-value cache and any other store offering similar functionality would work, too. Comment from @miguno below (rephrased): One important advantage of RocksDB in contrast to pure in-memory … Read more

Redis vs RocksDB

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They have nothing in common. You are trying to compare apples and oranges here. Redis is a remote in-memory data store (similar to memcached). It is a server. A single Redis instance is very efficient, but totally non scalable (regarding CPU). A Redis cluster is scalable (regarding CPU). RocksDB is an embedded key/value store (similar … Read more

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