blueboat
mvsqlite
Our great sponsors
blueboat | mvsqlite | |
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18 | 26 | |
1,918 | 1,318 | |
- | - | |
0.0 | 0.0 | |
about 1 year ago | 6 days ago | |
Rust | Rust | |
Apache License 2.0 | Apache License 2.0 |
Stars - the number of stars that a project has on GitHub. Growth - month over month growth in stars.
Activity is a relative number indicating how actively a project is being developed. Recent commits have higher weight than older ones.
For example, an activity of 9.0 indicates that a project is amongst the top 10% of the most actively developed projects that we are tracking.
blueboat
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What's with All the Runtimes for JavaScript?
Right now it is an exciting time for JavaScript. We just got a new shiny fast runtime Bun, with the last new kid Deno being released only 4 years ago, and we have edge computing/serverless runtimes like Cloudflare worker and Blueboat. With all these hypes for the JavaScript community, I could not help but ask, how come only JavaScript gets all these fancy new runtimes? Why don’t we hear these more often in other languages?
- Blueboat
- Blueboat - All-in-one, multi-tenant serverless javascript runtime.
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Show HN: Distributed SQLite on FoundationDB
Hello HN! I'm building mvsqlite, a distributed variant of SQLite with MVCC transactions, that runs on FoundationDB. It is a drop-in replacement that just needs an `LD_PRELOAD` for existing applications using SQLite.
I made this because [Blueboat](https://github.com/losfair/blueboat) needs a native SQL interface to persistent data. Apparently, just providing a transactional key-value store isn’t enough - it is more easy and efficient to build complex business logic on an SQL database, and it seems necessary to bring a self-hostable distributed SQL DB onto the platform. Since FoundationDB is Blueboat’s only stateful external dependency, I decided to build the SQL capabilities on top of it.
At its core, mvsqlite’s storage engine, mvstore, is a multi-version page store built on FoundationDB. It addresses the duration and size limits (5 secs, 10 MB) of FDB transactions, by handling multi-versioning itself. Pages are fully versioned, so they are always snapshot-readable in the future. An SQLite transaction fetches the read version during `BEGIN TRANSACTION`, and this version is used as the per-page range scan upper bound in future page read requests.
For writes, pages are first written to a content-addressed store keyed by the page's hash. At commit, hashes of each written page in the SQLite transaction is written to the page index in a single FDB transaction to preserve atomicity. With 8K pages and ~60B per key-value entry in the page index, each SQLite transaction can be as large as 1.3 GB (compared to FDB's native txn size limit of 10 MB).
mvsqlite is not yet "production-ready", since it hasn’t received enough testing, and I may still have a few changes to make to the on-disk format. But please ask here if you have any questions!
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Show HN: Blueboat is an all-in-one, multi-tenant serverless JavaScript runtime
This sounds quite a bit like Cloudflare Workers, and they have a comparison page - https://github.com/losfair/blueboat/wiki/Comparison-with-Clo....
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Are V8 isolates the future of computing?
> If one writes Go or Rust, there are much better ways to run them than targeting WASM
wasm has its place, especially for contained workloads that can be wrapped in its strict capability boundaries (think, file-encoding jobs that shouldn't access anything else but said files: https://news.ycombinator.com/item?id=29112713).
> Containers are still the defacto standard.
wasmedge [0], atmo [1], krustlet [2], blueboat [3] and numerous other projects are turning up the heat [4]!
[0] https://github.com/WasmEdge/WasmEdge
[1] https://github.com/suborbital/atmo
[2] https://github.com/krustlet/krustlet
[3] https://github.com/losfair/blueboat
[4] https://news.ycombinator.com/item?id=30155295
- Blueboat - a batteries-included, multi-tenant serverless runtime written in Rust
- losfair/blueboat: Blueboat is an open-source alternative to Cloudflare Workers. The monolithic engine for serverless web apps.
- Blueboat, an open-source alternative to Cloudflare Workers
mvsqlite
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FoundationDB: A Distributed Key-Value Store
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
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Go bindings to SQLite using Wazero
For the rough plan, it's Cloud Backed SQLite meets FoundationDB.
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SQLite-based databases on the Postgres protocol? Yes we can
- 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/
- We Built Fly Postgres
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Litestream doesn't do SQLite replication anymore (LiteFS does)
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.
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SQLite: QEMU All over Again?
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
- Show HN: mvSQLite v0.2
- mvsqlite: Distributed SQLite built on FoundationDB
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Show HN: Query SQLite files stored in S3
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
- GitHub - losfair/mvsqlite: Distributed, MVCC SQLite that runs on FoundationDB.
What are some alternatives?
bun - Incredibly fast JavaScript runtime, bundler, test runner, and package manager – all in one
awesome-sqlite - A curated list of awesome things related to SQLite
jose - JWA, JWS, JWE, JWT, JWK, JWKS for Node.js, Browser, Cloudflare Workers, Deno, Bun, and other Web-interoperable runtimes.
dqlite - Embeddable, replicated and fault-tolerant SQL engine.
deploy_feedback - For reporting issues with Deno Deploy
litefs - FUSE-based file system for replicating SQLite databases across a cluster of machines
workers-sdk - ⛅️ Home to Wrangler, the CLI for Cloudflare Workers®
rqlite - The lightweight, distributed relational database built on SQLite.
SSVM - WasmEdge is a lightweight, high-performance, and extensible WebAssembly runtime for cloud native, edge, and decentralized applications. It powers serverless apps, embedded functions, microservices, smart contracts, and IoT devices.
datasette-stripe - A web SQL interface to your Stripe account using Datasette.
IncludeOS - A minimal, resource efficient unikernel for cloud services
fdb-document-layer - A document data model on FoundationDB, implementing MongoDB® wire protocol