Source: https://seerepo.com/compare/hydra-db/hydradb/vs/rustfs/rustfs
Markdown source: https://seerepo.com/compare/hydra-db/hydradb/vs/rustfs/rustfs.md
Description: hydradb and rustfs share 9 technologies: axum, Tokio, opentelemetry-semantic-conventions, tracing, tracing-subscriber, OpenTelemetry, tracing-opentelemetry, opentelemetry-appender-tracing, and opentelemetry-otlp. Both are written in Rust.

# hydradb vs rustfs

hydradb and rustfs share 9 technologies: axum, Tokio, opentelemetry-semantic-conventions, tracing, tracing-subscriber, OpenTelemetry, tracing-opentelemetry, opentelemetry-appender-tracing, and opentelemetry-otlp. Both are written in Rust.

- [hydra-db/hydradb](https://seerepo.com/r/hydra-db/hydradb): HydraDB - fast graph database on object storage
- [rustfs/rustfs](https://seerepo.com/r/rustfs/rustfs): RustFS is an open-source, S3-compatible high-performance object storage system supporting migration and coexistence with other S3-compatible platforms such as MinIO and Ceph.

## What they share and what sets them apart

- In common: axum, Tokio, opentelemetry-semantic-conventions, tracing, tracing-subscriber, OpenTelemetry, tracing-opentelemetry, opentelemetry-appender-tracing, opentelemetry-otlp
- Only in hydradb: axum-server, foyer
- Only in rustfs: aws-sdk-s3, lapin, mysql_async, pulsar, tokio-postgres, tokio-postgres-rustls, datafusion, moka, async-nats, MySQL, rumqttc, Postgres, Redis, AWS S3, tower, hmac, jsonwebtoken, argon2, openidconnect, ed25519-dalek, google-cloud-auth, pbkdf2, zip, quick-xml, apache-avro, csv-core, metrics, pyroscope, tracing-appender, opentelemetry-stdout, tracing-error

## Side by side

| | hydradb | rustfs |
|---|---|---|
| Size | 127,544 lines written, 141 code files | 1,950,787 lines written, 1,556 code files |
| Who writes it | 29% of its commits signed by AI. With Claude Code, Cursor, and Codex | 3.2% of its commits signed by AI. With GitHub Copilot, Claude Code, and Cursor |
| Activity | Last push November 10, 2026, 62 commits, 13,078 stars | Last push November 7, 2026, 7,273 commits, 35,817 stars |
| Tests | 0 test files | 577 test files. 28% of its code files have a test that imports them |

- Size: Lines written by people and agents, without generated ones; code files, without tests.
- Who writes it: A commit counts as AI's when it carries its signature: a Co-Authored-By line, its author name or the merge of its branch.
- Activity: From GitHub and its history, on the day SeeRepo read it.
- Tests: The files that test the code, and the share of code files a test imports.

## Frequently asked questions

### Which is bigger, hydradb or rustfs?

rustfs, with 1,950,787 lines written; hydradb has 127,544.

The proof: [rustfs/rustfs's code at commit d66d144](https://github.com/rustfs/rustfs/tree/d66d1443099f1174c58b558b2ff05c7c04ee9985)

### Which has more GitHub stars, hydradb or rustfs?

rustfs, with 35,817 stars; hydradb has 13,078.

The proof: [rustfs/rustfs on GitHub](https://github.com/rustfs/rustfs)

### Which has more tests, hydradb or rustfs?

rustfs, with 577 test files.

The proof: [rustfs/rustfs's code at commit d66d144](https://github.com/rustfs/rustfs/tree/d66d1443099f1174c58b558b2ff05c7c04ee9985)

### Which was updated more recently, hydradb or rustfs?

hydradb: its last push was on November 10, 2026, and rustfs's on November 7, 2026.

The proof: [hydra-db/hydradb's commits on GitHub](https://github.com/hydra-db/hydradb/commits)

### Which has more commits signed by AI, hydradb or rustfs?

hydradb: an AI signed 29% of its commits, with Claude Code, Cursor, and Codex; in rustfs, 3.2%.

## Sources

- hydra-db/hydradb: Read on November 10, 2026, at commit af63440 (https://github.com/hydra-db/hydradb/tree/af6344037bffb2a354bf32c2b312ba4921a1583f)
- rustfs/rustfs: Read on November 7, 2026, at commit d66d144 (https://github.com/rustfs/rustfs/tree/d66d1443099f1174c58b558b2ff05c7c04ee9985)

## What is your repo built with?

Any public repo, with no account: https://seerepo.com/r/owner/repo/built, with the owner and name it has on GitHub.