tikv VS lmdb-rs

tikv

• just wanted to ask is there an in memory database that uses s3 or gcp cloud storage as permanent storage
  1 project | /r/Database | 4 Jul 2023

  I know that very similar functionality to this is in TiDB Serverless ( https://tidbcloud.com ). TiDB is a distributed relational database. It uses TiKV ( which is a key/value engine ) as the storage engine. You could use SQL to access your K/V records. There is ongoing work in TiKV to support S3 directly as the storage backend ( https://github.com/tikv/tikv/issues/6506 ) .

• Implementing a distributed key-value store on top of implementing Raft in Go
  5 projects | news.ycombinator.com | 25 May 2023
• Production grade databases in Rust
  14 projects | /r/rust | 21 Apr 2023
• Can anyone recommend tikv nosql database
  1 project | /r/developers | 13 Jan 2023
• Go devs that learned Rust, what are your thoughts on it?
  7 projects | /r/golang | 8 Jan 2023
• Apache Pegasus – A a distributed key-value storage system
  4 projects | news.ycombinator.com | 6 Oct 2022

  TiKV is basically a layer on top of rocksdb https://github.com/tikv/tikv/blob/956610725039835557e7516828...

• TiKV is a highly scalable, low latency, and easy to use key-value database
  1 project | news.ycombinator.com | 16 Sep 2022
• Surrealdb – FOSS document-graph database, for the realtime web in Rust
  6 projects | news.ycombinator.com | 16 Sep 2022

  > Many,many smart people…

  If you look inside the code you can see the stated features are a result of underlying engine (TiKV [0] also in c and rust from pingcap). Surrealdb is standing on shoulders of giants at present, they are TiKV, FoundationDB and rocksdb. The feature set they mentioned mostly coming from TiKV at present.

  [0] https://tikv.org/

• Cloud database for tomorrow's applications (written in Rust)
  7 projects | news.ycombinator.com | 22 Aug 2022

  Hi Diggsey, great question. We are currently focussed on functionality and stability, and then will draw our attention to performance. Coming this week we have a RocksDB storage implementation. We've only just launched our initial beta version, and we know there is a lot of improvement and work to be done (some of these performance issues we know about already and are on our Github issues list).

  With regards to the consistency/isolation model, SurrealDB sits on top of a number of key-value stores. By using the distributed highly-available TiKV storage backend, https://tikv.org, (and we have a FoundationDB integration in the works), the database is designed to be highly-scalable and highly-available. The same guarantees (albeit just single-node, so no high-availability or scalability) will be available with the RocksDB implementation coming this week. By sitting on top of these key-value stores, SurrealDB ensures that all transactions are ACID compliant. We don't want to go for speed (for instance by writing to /dev/null) over anything, but want SurrealDB to be a reliable and performant backend for any application. Obviously we have a way to go to catch up with PostgreSQL (launched in 1996), but we will strive to get there!

• CeresDB: A high-performance, distributed, schema-less and time-series database
  3 projects | news.ycombinator.com | 15 Jun 2022

  If you are looking for a production ready distributed store written in Rust. Check out TiKV(https://github.com/tikv/tikv), which was also mentioned in the acknowledge section of the project's README.

  There's also a full-featured distributed RDBMS called TiDB built on top of TiKV.

lmdb-rs

We haven't tracked posts mentioning lmdb-rs yet.
Tracking mentions began in Dec 2020.