tigris VS mvsqlite

You can learn more about fly.io and tigris, we will need to create an account on both platforms for this project regardless. Anyway with the theory out of the way let's get started in the next section as we create our accounts and start building the app.

Sounds like you might be interested in the Tigris preview:

- https://www.tigrisdata.com/

- https://benhoyt.com/writings/flyio-and-tigris/ (discussed here: https://news.ycombinator.com/item?id=39360870)

- https://fly.io/docs/reference/tigris/

Tigris: an open source Serverless NoSQL Database and Search platform

Tigris is an open source serverless NoSQL database and search platform. If you have any questions, or you'd like to contribute to the Tigris open source project.

To try the Tigirs database with express app, visit: https://www.tigrisdata.com/ Signup, and create a test app. It'll provide a command set of npm. Create an express app using it and you'll be able to explore the codebase and queries.

Tigris(https://github.com/tigrisdata/tigris) is one of the supported FerretDB backends and Tigris is backed by FoundationDB, so you can still have the Mongo interface with the reliability and scaling of FDB if that's what you're looking for

Based on the feedback in this thread I have updated the headline on the website to make it about what the product is and moved down the "MongoDB alternative" part. I hope it is more clearer now: https://www.tigrisdata.com/

I’ve been using FDB for toy projects for a while. It’s truly rock solid. That being said, I wish there were more layers.

Ideally someone could implement the firestore or dynamodb api on top.

https://github.com/losfair/mvsqlite

For the rough plan, it's Cloud Backed SQLite meets FoundationDB.

- Oh, and if you're wondering about backup to S3, they have that too: https://github.com/libsql/bottomless

- Uh, sqld can integrated with this https://github.com/losfair/mvsqlite, so now your SQLite is backed by FoundationDB!?

- Meanwhile Litestream exists https://github.com/benbjohnson/litestream/

Shameless plug of my [mvSQLite](https://github.com/losfair/mvsqlite) project here! It's basically another distributed SQLite, but with support for everything expected from a proper distributed database: synchronous replication, strictly serializable transactions, + scalable reads and writes w/ multiple concurrent writers.

This project looks really exciting!

I'm working on mvsqlite [1], a distributed SQLite based on FoundationDB. When doing the VFS integration I have always wanted to patch SQLite itself, but didn't because of uncertainty around correctness of the patched version...

A few features on my wishlist:

1. Asynchronous I/O. mvsqlite is currently doing its own prefetch prediction that is not very accurate. I assume higher layers in SQLite have more information that can help with better prediction.

2. Custom page allocator. SQLite internally uses a linked list to manage database pages - this causes contention on any two transactions that both allocate or free pages.

3. Random ROWID, without the `max(int64)` row trick. Sequentially increasing ROWIDs is a primary source of contention, and causes significant INSERT slowdown in my benchmark [2].

[1] https://github.com/losfair/mvsqlite

[2] https://univalence.me/posts/mvsqlite-bench-20220930

That DynamoDB VFS looks cool! I agree that the VFS api makes one think about plenty of crazy ideas. Someone is working on a VFS based on Foundation DB[0] that looks very promising. It was recently discussed here[1]

[0]: https://github.com/losfair/mvsqlite

[1]: https://news.ycombinator.com/item?id=32269287