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Current state: ["Under Discussion"]

Discussion thread: here [TODO]

JIRA: KAFKA-8029

Please keep the discussion on the mailing list rather than commenting on the wiki (wiki discussions get unwieldy fast).

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Currently we provide three types of built-in state stores (key-value, window, and session), for which the key-value and window varieties offer both persistent (RocksDB) and in-memory versions. The session store however only has the RocksDB implementation at this point. We should finish rounding out the API and allow users to take full advantage of in-memory performance.

Public Interfaces

This KIP adds one public method to Stores to return an in-memory SessionBytesStoreSupplier

    public static SessionBytesStoreSupplier inMemorySessionStore(final String name, final Duration retentionPeriod);

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