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KiviDB shards a Redis-compatible in-memory keyspace across threads

github.com 12 min read Editor score 6/10

KiviDB supports RESP2 and RESP3, shards its keyspace across threads, and uses io_uring on Linux with a Tokio fallback elsewhere. Those implementation choices are relevant to engineers evaluating in-memory data stores, though the excerpt gives no benchmark results.

What: KiviDB is a Rust-based, Redis-compatible in-memory database with built-in full-text and vector search.
How: Its sharded key-value design uses every core and persists to snapshots plus an optional append-only file.
Why it matters: RESP2 and RESP3 compatibility lets existing Redis clients and libraries work unchanged, while built-in search supports additional workloads.

KiviDB accepts Redis-protocol commands, operates on an in-memory key-value design, and persists data. Sketched from the article's own text.

Read on github.com → Hacker News · 40 comments

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