Question 1

How do I set up lmdb-rs in a Rust project?

Accepted Answer

Add lmdb-rs to your Cargo.toml, then run 'git submodule update --init' to fetch LMDB's C source, followed by 'cargo build' as per the README. This ensures the C dependency is properly integrated.

Question 2

Is lmdb-rs safe for production use?

Accepted Answer

Yes, it leverages the stable LMDB C library, which is production-tested. The Rust binding adds safety guarantees, but monitor updates and community feedback for any Rust-specific issues.

Question 3

What are the performance benchmarks for lmdb-rs?

Accepted Answer

lmdb-rs aims for zero-cost abstractions, so performance is close to native LMDB with zero-copy operations. For specific use cases, benchmark against alternatives, as Rust's safety might add minimal overhead.

Question 4

Should I use lmdb-rs or sled for embedded key-value storage in Rust?

Accepted Answer

Choose lmdb-rs for ACID compliance and memory-mapped I/O in a safe wrapper, while sled is pure Rust and offers more modern features but may have different performance characteristics. Consider your transaction and safety needs.

Question 5

How does lmdb-rs handle concurrent database access?

Accepted Answer

It uses Rust's ownership model to safely manage concurrency, supporting LMDB's multiple readers and single writer via transactions. Ensure proper transaction handling to avoid deadlocks in multi-threaded contexts.

Question 6

Can I use lmdb-rs with async Rust code?

Accepted Answer

lmdb-rs is synchronous, as LMDB itself is synchronous. For async applications, run database operations in a blocking task or use an executor, which may complicate heavily async-based designs.

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