{"id":33926972,"url":"https://github.com/kamil-kielbasa/aeternusdb","last_synced_at":"2026-04-05T01:33:40.411Z","repository":{"id":321797723,"uuid":"1083619969","full_name":"kamil-kielbasa/aeternusdb","owner":"kamil-kielbasa","description":"An embeddable, persistent key-value store built on an LSM-tree architecture.","archived":false,"fork":false,"pushed_at":"2026-02-13T20:04:10.000Z","size":192,"stargazers_count":1,"open_issues_count":0,"forks_count":0,"subscribers_count":0,"default_branch":"main","last_synced_at":"2026-02-14T03:27:01.059Z","etag":null,"topics":["database","embedded-database","key-value-store","lsm-tree","nosql","rust","storage-engine","systems-programming"],"latest_commit_sha":null,"homepage":"","language":"Rust","has_issues":true,"has_wiki":null,"has_pages":null,"mirror_url":null,"source_name":null,"license":"mit","status":null,"scm":"git","pull_requests_enabled":true,"icon_url":"https://github.com/kamil-kielbasa.png","metadata":{"files":{"readme":"README.md","changelog":null,"contributing":null,"funding":null,"license":"LICENSE","code_of_conduct":null,"threat_model":null,"audit":null,"citation":null,"codeowners":null,"security":null,"support":null,"governance":null,"roadmap":null,"authors":null,"dei":null,"publiccode":null,"codemeta":null,"zenodo":null,"notice":null,"maintainers":null,"copyright":null,"agents":null,"dco":null,"cla":null}},"created_at":"2025-10-26T11:57:06.000Z","updated_at":"2026-02-13T20:04:14.000Z","dependencies_parsed_at":null,"dependency_job_id":null,"html_url":"https://github.com/kamil-kielbasa/aeternusdb","commit_stats":null,"previous_names":["kamil-kielbasa/aeternusdb"],"tags_count":0,"template":false,"template_full_name":null,"purl":"pkg:github/kamil-kielbasa/aeternusdb","repository_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/kamil-kielbasa%2Faeternusdb","tags_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/kamil-kielbasa%2Faeternusdb/tags","releases_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/kamil-kielbasa%2Faeternusdb/releases","manifests_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/kamil-kielbasa%2Faeternusdb/manifests","owner_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/owners/kamil-kielbasa","download_url":"https://codeload.github.com/kamil-kielbasa/aeternusdb/tar.gz/refs/heads/main","sbom_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/kamil-kielbasa%2Faeternusdb/sbom","scorecard":null,"host":{"name":"GitHub","url":"https://github.com","kind":"github","repositories_count":286080680,"owners_count":31421869,"icon_url":"https://github.com/github.png","version":null,"created_at":"2022-05-30T11:31:42.601Z","updated_at":"2026-04-05T00:25:07.052Z","status":"ssl_error","status_checked_at":"2026-04-05T00:25:05.923Z","response_time":60,"last_error":"SSL_connect returned=1 errno=0 peeraddr=140.82.121.6:443 state=error: unexpected eof while reading","robots_txt_status":"success","robots_txt_updated_at":"2025-07-24T06:49:26.215Z","robots_txt_url":"https://github.com/robots.txt","online":false,"can_crawl_api":true,"host_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub","repositories_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories","repository_names_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repository_names","owners_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/owners"}},"keywords":["database","embedded-database","key-value-store","lsm-tree","nosql","rust","storage-engine","systems-programming"],"created_at":"2025-12-12T10:38:40.849Z","updated_at":"2026-04-05T01:33:40.406Z","avatar_url":"https://github.com/kamil-kielbasa.png","language":"Rust","funding_links":[],"categories":[],"sub_categories":[],"readme":"# AeternusDB\n\n[![CI](https://github.com/kamil-kielbasa/aeternusdb/actions/workflows/ci.yml/badge.svg)](https://github.com/kamil-kielbasa/aeternusdb/actions/workflows/ci.yml)\n[![Bench](https://github.com/kamil-kielbasa/aeternusdb/actions/workflows/bench.yml/badge.svg)](https://github.com/kamil-kielbasa/aeternusdb/actions/workflows/bench.yml)\n[![Docs](https://github.com/kamil-kielbasa/aeternusdb/actions/workflows/docs.yml/badge.svg)](https://github.com/kamil-kielbasa/aeternusdb/actions/workflows/docs.yml)\n[![Audit](https://github.com/kamil-kielbasa/aeternusdb/actions/workflows/audit.yml/badge.svg)](https://github.com/kamil-kielbasa/aeternusdb/actions/workflows/audit.yml)\n[![codecov](https://codecov.io/gh/kamil-kielbasa/aeternusdb/graph/badge.svg)](https://codecov.io/gh/kamil-kielbasa/aeternusdb)\n[![License: MIT](https://img.shields.io/badge/license-MIT-blue.svg)](LICENSE)\n\nAn embeddable, persistent key-value storage engine built on a **Log-Structured Merge Tree (LSM-tree)** architecture. Written in pure Rust with a focus on durability, crash safety, and correctness.\n\n\u003e **Aeternus** — Latin for *eternal, everlasting*. A fitting name for a database engine designed to preserve data durably across crashes and restarts.\n\n## Quick Start\n\n```rust\nuse aeternusdb::{Db, DbConfig};\n\nlet db = Db::open(\"/tmp/my_db\", DbConfig::default()).unwrap();\n\ndb.put(b\"hello\", b\"world\").unwrap();\nassert_eq!(db.get(b\"hello\").unwrap(), Some(b\"world\".to_vec()));\n\ndb.delete(b\"hello\").unwrap();\nassert_eq!(db.get(b\"hello\").unwrap(), None);\n\ndb.close().unwrap();\n```\n\n## Features\n\n- **Write-ahead logging** — every mutation is persisted before acknowledgement\n- **Automatic background compaction** — size-tiered compaction with minor, tombstone, and major passes\n- **Point and range deletes** — efficient tombstone-based deletion semantics\n- **Bloom filter lookups** — fast negative lookups on SSTables\n- **CRC32 integrity** — all on-disk blocks are checksummed\n- **Crash recovery** — automatic recovery from WAL on restart\n\n## Documentation\n\n| Document | Description |\n|----------|-------------|\n| [Architecture](doc/architecture.md) | High-level design, data flow, concurrency model, and configuration reference |\n| [Getting Started](doc/getting_started.md) | Build, test, usage guide, and local development |\n| [WAL](doc/wal.md) | Write-ahead log format, guarantees, and recovery |\n| [Memtable](doc/memtable.md) | In-memory write buffer, multi-version storage, and flush semantics |\n| [SSTable](doc/sstable.md) | On-disk sorted table format, block layout, and read/write process |\n| [Manifest](doc/manifest.md) | Metadata persistence, WAL + snapshot model, and crash safety |\n| [Compaction](doc/compaction.md) | Size-Tiered Compaction Strategy (STCS) — minor, tombstone, and major |\n| [Encoding](doc/encoding.md) | Custom binary encoding format, wire layout, safety limits, and type support |\n| [Benchmarking](doc/benchmarking.md) | How to run, read, and profile Criterion micro-benchmarks and YCSB workloads |\n| [Changelog](CHANGELOG.md) | Release history and feature notes |\n\n**API Reference (rustdoc):** [kamil-kielbasa.github.io/aeternusdb](https://kamil-kielbasa.github.io/aeternusdb/)\n\n**Benchmark Reports (Criterion):** [kamil-kielbasa.github.io/aeternusdb/criterion/report](https://kamil-kielbasa.github.io/aeternusdb/criterion/report/index.html)\n\n## Build \u0026 Test\n\n```bash\ncargo build\ncargo test --lib                     # unit tests\ncargo test --lib -- --ignored        # stress tests\ncargo bench                          # performance benchmarks\ncargo doc --no-deps --open           # local API docs\n```\n\n## Contact\n\n📧 kamkie1996@gmail.com\n\n## License\n\nMIT — see [LICENSE](LICENSE).\n","project_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fkamil-kielbasa%2Faeternusdb","html_url":"https://awesome.ecosyste.ms/projects/github.com%2Fkamil-kielbasa%2Faeternusdb","lists_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fkamil-kielbasa%2Faeternusdb/lists"}