{"adoption": {"forks": 241, "observed_at": "2026-08-28T04:04:58.620810+00:00", "stars": 1528}, "canonical_url": "https://ross.abutalabs.com/products/comdb2", "card": {"archived": false, "artifact_type": "application", "description": "Bloomberg's distributed RDBMS", "domain": ["databases", "microservices", "backend", "developer-tools"], "enriched": true, "function": ["database", "caching", "concurrency"], "health_score": 80, "homepage": null, "language": "C", "license": "NOASSERTION", "license_family": "other", "maturity": "active", "member_repos": ["bloomberg/comdb2"], "name": "bloomberg/comdb2", "platform": ["cross-platform"], "pushed_at": "2026-08-26T19:32:53+00:00", "repo": "bloomberg/comdb2", "stars": 1528, "tags": ["rdbms", "distributed-database", "sql", "optimistic-concurrency", "clustered-database", "bloomberg", "linux", "macos"], "topics": [], "urls": [], "use_cases": ["run a distributed SQL database across a cluster of machines", "need snapshot or serializable isolation in a relational database", "transparent failover and reconnect for database clients", "self-hosted alternative to commercial clustered RDBMS", "low-latency transactional reads and writes on any cluster node"], "what_it_is": "Comdb2 is Bloomberg's open-source clustered relational database management system built on optimistic concurrency control. It supports multiple isolation levels including snapshot and serializable, with clients transparently connecting to the lowest-latency node and reconnecting on failure.", "when_to_avoid": ["you need a mainstream database with a large ecosystem and community", "you require managed cloud database services", "your workload is a simple single-node application where SQLite or Postgres suffices"], "when_to_choose": ["you need a clustered RDBMS with strong isolation guarantees", "you want transparent client failover across database nodes", "you're comfortable running and operating your own database infrastructure"]}, "data_as_of": "2026-08-30T08:39:29.467469+00:00", "members": [{"path": "/products/comdb2", "repo": "bloomberg/comdb2", "role": "main", "score": 77}], "provenance": {"archived": {"kind": "observed", "observed_at": "2026-08-28T04:04:58.620810+00:00", "source": "github"}, "artifact_type": {"confidence": null, "enriched_at": "2026-08-30T04:31:30.429882+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "76fa6922eaa15cc1890c216e05156c75a29834ae37a01e61ab6ba19edaff87f7", "fetched_at": "2026-08-28T04:04:58.620810+00:00", "kind": "readme", "missing": false, "url": "https://github.com/bloomberg/comdb2"}], "taxonomy_version": 1}, "description": {"kind": "observed", "observed_at": "2026-08-28T04:04:58.620810+00:00", "source": "github"}, "domain": {"confidence": null, "enriched_at": "2026-08-30T04:31:30.429882+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "76fa6922eaa15cc1890c216e05156c75a29834ae37a01e61ab6ba19edaff87f7", "fetched_at": "2026-08-28T04:04:58.620810+00:00", "kind": "readme", "missing": false, "url": "https://github.com/bloomberg/comdb2"}], "taxonomy_version": 1}, "enriched": {"inputs": [], "kind": "computed", "method": "enrichment_status"}, "function": {"confidence": null, "enriched_at": "2026-08-30T04:31:30.429882+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "76fa6922eaa15cc1890c216e05156c75a29834ae37a01e61ab6ba19edaff87f7", "fetched_at": "2026-08-28T04:04:58.620810+00:00", "kind": "readme", "missing": false, "url": "https://github.com/bloomberg/comdb2"}], "taxonomy_version": 1}, "health_score": {"inputs": ["days_since_push", "days_since_release", "archived"], "kind": "computed", "method": "health_v1"}, "homepage": {"kind": "observed", "observed_at": "2026-08-28T04:04:58.620810+00:00", "source": "github"}, "language": {"kind": "observed", "observed_at": "2026-08-28T04:04:58.620810+00:00", "source": "github"}, "license": {"kind": "observed", "observed_at": "2026-08-28T04:04:58.620810+00:00", "source": "github"}, "license_family": {"inputs": ["license"], "kind": "computed", "method": "license_family"}, "maturity": {"confidence": null, "enriched_at": "2026-08-30T04:31:30.429882+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "76fa6922eaa15cc1890c216e05156c75a29834ae37a01e61ab6ba19edaff87f7", "fetched_at": "2026-08-28T04:04:58.620810+00:00", "kind": "readme", "missing": false, "url": "https://github.com/bloomberg/comdb2"}], "taxonomy_version": 1}, "member_repos": {"kind": "observed", "observed_at": "2026-08-28T04:04:58.620810+00:00", "source": "github"}, "name": {"kind": "observed", "observed_at": "2026-08-28T04:04:58.620810+00:00", "source": "github"}, "platform": {"confidence": null, "enriched_at": "2026-08-30T04:31:30.429882+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "76fa6922eaa15cc1890c216e05156c75a29834ae37a01e61ab6ba19edaff87f7", "fetched_at": "2026-08-28T04:04:58.620810+00:00", "kind": "readme", "missing": false, "url": "https://github.com/bloomberg/comdb2"}], "taxonomy_version": 1}, "pushed_at": {"kind": "observed", "observed_at": "2026-08-28T04:04:58.620810+00:00", "source": "github"}, "repo": {"kind": "observed", "observed_at": "2026-08-28T04:04:58.620810+00:00", "source": "github"}, "stars": {"kind": "observed", "observed_at": "2026-08-28T04:04:58.620810+00:00", "source": "github"}, "tags": {"confidence": null, "enriched_at": "2026-08-30T04:31:30.429882+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "76fa6922eaa15cc1890c216e05156c75a29834ae37a01e61ab6ba19edaff87f7", "fetched_at": "2026-08-28T04:04:58.620810+00:00", "kind": "readme", "missing": false, "url": "https://github.com/bloomberg/comdb2"}], "taxonomy_version": 1}, "topics": {"kind": "observed", "observed_at": "2026-08-28T04:04:58.620810+00:00", "source": "github"}, "urls": {"kind": "observed", "observed_at": "2026-08-28T04:04:58.620810+00:00", "source": "github"}, "use_cases": {"confidence": null, "enriched_at": "2026-08-30T04:31:30.429882+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "76fa6922eaa15cc1890c216e05156c75a29834ae37a01e61ab6ba19edaff87f7", "fetched_at": "2026-08-28T04:04:58.620810+00:00", "kind": "readme", "missing": false, "url": "https://github.com/bloomberg/comdb2"}], "taxonomy_version": 1}, "what_it_is": {"confidence": null, "enriched_at": "2026-08-30T04:31:30.429882+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "76fa6922eaa15cc1890c216e05156c75a29834ae37a01e61ab6ba19edaff87f7", "fetched_at": "2026-08-28T04:04:58.620810+00:00", "kind": "readme", "missing": false, "url": "https://github.com/bloomberg/comdb2"}], "taxonomy_version": 1}, "when_to_avoid": {"confidence": null, "enriched_at": "2026-08-30T04:31:30.429882+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "76fa6922eaa15cc1890c216e05156c75a29834ae37a01e61ab6ba19edaff87f7", "fetched_at": "2026-08-28T04:04:58.620810+00:00", "kind": "readme", "missing": false, "url": "https://github.com/bloomberg/comdb2"}], "taxonomy_version": 1}, "when_to_choose": {"confidence": null, "enriched_at": "2026-08-30T04:31:30.429882+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "76fa6922eaa15cc1890c216e05156c75a29834ae37a01e61ab6ba19edaff87f7", "fetched_at": "2026-08-28T04:04:58.620810+00:00", "kind": "readme", "missing": false, "url": "https://github.com/bloomberg/comdb2"}], "taxonomy_version": 1}}, "score": {"components": {"activity": 99, "longevity": 100, "rhythm": 35}, "computed_at": "2026-09-03T02:20:16.233290+00:00", "flags": ["no_releases", "no_license"], "formula": "round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)", "inputs": {"age_days": 3395, "days_push": 7, "days_rel": null, "gap_med": null, "n_releases_24m": 0}, "score": 77, "version": 2}, "staleness": {"enrichment_outdated": false, "low_confidence": false, "scrape_days": 9, "stale_scrape": false}}