{"adoption": {"forks": 283, "observed_at": "2026-08-28T04:06:25.771648+00:00", "stars": 2203}, "canonical_url": "https://ross.abutalabs.com/products/distributedlog", "card": {"archived": true, "artifact_type": "library", "description": "A high performance replicated log service. (The development is moved to Apache Incubator)", "domain": ["microservices", "big-data"], "enriched": true, "function": ["message-queue", "streaming", "database"], "health_score": 10, "homepage": "http://distributedlog.incubator.apache.org/", "language": "Java", "license": "Apache-2.0", "license_family": "permissive", "maturity": "maintenance", "member_repos": ["twitter-archive/distributedlog"], "name": "twitter-archive/distributedlog", "platform": ["jvm"], "pushed_at": "2020-02-25T19:15:10+00:00", "repo": "twitter-archive/distributedlog", "stars": 2203, "tags": ["replicated-log", "write-ahead-log", "bookkeeper", "pub-sub", "event-streaming", "apache", "messaging", "real-time", "linux", "docker"], "topics": [], "urls": [], "use_cases": ["build a durable write-ahead log for a distributed database", "replicate state machine logs with strong ordering guarantees", "ingest real-time event streams at high throughput", "implement reliable pub-sub messaging with low latency writes", "store append-only logs for distributed systems", "fan-out log streams to many concurrent readers"], "what_it_is": "Apache DistributedLog is a high-throughput, low-latency replicated log service offering durability, replication, and strong ordering guarantees for real-time applications. Development has moved into Apache BookKeeper, so this archived Twitter repository is no longer the active codebase.", "when_to_avoid": ["you want active development - use Apache BookKeeper, which absorbed this project", "you need a simple message queue rather than a low-level log abstraction", "you are not on the JVM ecosystem"], "when_to_choose": ["you need a strongly ordered, replicated log stream on the JVM", "you want millisecond-latency durable writes for OLTP or WAL workloads", "you are already using Apache BookKeeper or ZooKeeper infrastructure"]}, "data_as_of": "2026-08-30T08:39:29.467469+00:00", "members": [{"path": "/products/distributedlog", "repo": "twitter-archive/distributedlog", "role": "main", "score": 10}], "provenance": {"archived": {"kind": "observed", "observed_at": "2026-08-28T04:06:25.771648+00:00", "source": "github"}, "artifact_type": {"confidence": null, "enriched_at": "2026-08-30T02:47:00.947815+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "5f3ba3cf7b8041992e439b006dfbe9ae9a802d259f7a2dd3c529a9a8617e7c45", "fetched_at": "2026-08-28T04:06:25.771648+00:00", "kind": "readme", "missing": false, "url": "https://github.com/twitter-archive/distributedlog"}], "taxonomy_version": 1}, "description": {"kind": "observed", "observed_at": "2026-08-28T04:06:25.771648+00:00", "source": "github"}, "domain": {"confidence": null, "enriched_at": "2026-08-30T02:47:00.947815+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "5f3ba3cf7b8041992e439b006dfbe9ae9a802d259f7a2dd3c529a9a8617e7c45", "fetched_at": "2026-08-28T04:06:25.771648+00:00", "kind": "readme", "missing": false, "url": "https://github.com/twitter-archive/distributedlog"}], "taxonomy_version": 1}, "enriched": {"inputs": [], "kind": "computed", "method": "enrichment_status"}, "function": {"confidence": null, "enriched_at": "2026-08-30T02:47:00.947815+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "5f3ba3cf7b8041992e439b006dfbe9ae9a802d259f7a2dd3c529a9a8617e7c45", "fetched_at": "2026-08-28T04:06:25.771648+00:00", "kind": "readme", "missing": false, "url": "https://github.com/twitter-archive/distributedlog"}], "taxonomy_version": 1}, "health_score": {"inputs": ["days_since_push", "days_since_release", "archived"], "kind": "computed", "method": "health_v1"}, "homepage": {"kind": "observed", "observed_at": "2026-08-28T04:06:25.771648+00:00", "source": "github"}, "language": {"kind": "observed", "observed_at": "2026-08-28T04:06:25.771648+00:00", "source": "github"}, "license": {"kind": "observed", "observed_at": "2026-08-28T04:06:25.771648+00:00", "source": "github"}, "license_family": {"inputs": ["license"], "kind": "computed", "method": "license_family"}, "maturity": {"confidence": null, "enriched_at": "2026-08-30T02:47:00.947815+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "5f3ba3cf7b8041992e439b006dfbe9ae9a802d259f7a2dd3c529a9a8617e7c45", "fetched_at": "2026-08-28T04:06:25.771648+00:00", "kind": "readme", "missing": false, "url": "https://github.com/twitter-archive/distributedlog"}], "taxonomy_version": 1}, "member_repos": {"kind": "observed", "observed_at": "2026-08-28T04:06:25.771648+00:00", "source": "github"}, "name": {"kind": "observed", "observed_at": "2026-08-28T04:06:25.771648+00:00", "source": "github"}, "platform": {"confidence": null, "enriched_at": "2026-08-30T02:47:00.947815+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "5f3ba3cf7b8041992e439b006dfbe9ae9a802d259f7a2dd3c529a9a8617e7c45", "fetched_at": "2026-08-28T04:06:25.771648+00:00", "kind": "readme", "missing": false, "url": "https://github.com/twitter-archive/distributedlog"}], "taxonomy_version": 1}, "pushed_at": {"kind": "observed", "observed_at": "2026-08-28T04:06:25.771648+00:00", "source": "github"}, "repo": {"kind": "observed", "observed_at": "2026-08-28T04:06:25.771648+00:00", "source": "github"}, "stars": {"kind": "observed", "observed_at": "2026-08-28T04:06:25.771648+00:00", "source": "github"}, "tags": {"confidence": null, "enriched_at": "2026-08-30T02:47:00.947815+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "5f3ba3cf7b8041992e439b006dfbe9ae9a802d259f7a2dd3c529a9a8617e7c45", "fetched_at": "2026-08-28T04:06:25.771648+00:00", "kind": "readme", "missing": false, "url": "https://github.com/twitter-archive/distributedlog"}], "taxonomy_version": 1}, "topics": {"kind": "observed", "observed_at": "2026-08-28T04:06:25.771648+00:00", "source": "github"}, "urls": {"kind": "observed", "observed_at": "2026-08-28T04:06:25.771648+00:00", "source": "github"}, "use_cases": {"confidence": null, "enriched_at": "2026-08-30T02:47:00.947815+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "5f3ba3cf7b8041992e439b006dfbe9ae9a802d259f7a2dd3c529a9a8617e7c45", "fetched_at": "2026-08-28T04:06:25.771648+00:00", "kind": "readme", "missing": false, "url": "https://github.com/twitter-archive/distributedlog"}], "taxonomy_version": 1}, "what_it_is": {"confidence": null, "enriched_at": "2026-08-30T02:47:00.947815+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "5f3ba3cf7b8041992e439b006dfbe9ae9a802d259f7a2dd3c529a9a8617e7c45", "fetched_at": "2026-08-28T04:06:25.771648+00:00", "kind": "readme", "missing": false, "url": "https://github.com/twitter-archive/distributedlog"}], "taxonomy_version": 1}, "when_to_avoid": {"confidence": null, "enriched_at": "2026-08-30T02:47:00.947815+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "5f3ba3cf7b8041992e439b006dfbe9ae9a802d259f7a2dd3c529a9a8617e7c45", "fetched_at": "2026-08-28T04:06:25.771648+00:00", "kind": "readme", "missing": false, "url": "https://github.com/twitter-archive/distributedlog"}], "taxonomy_version": 1}, "when_to_choose": {"confidence": null, "enriched_at": "2026-08-30T02:47:00.947815+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "5f3ba3cf7b8041992e439b006dfbe9ae9a802d259f7a2dd3c529a9a8617e7c45", "fetched_at": "2026-08-28T04:06:25.771648+00:00", "kind": "readme", "missing": false, "url": "https://github.com/twitter-archive/distributedlog"}], "taxonomy_version": 1}}, "score": {"components": {"activity": 0, "longevity": 100, "rhythm": 8}, "computed_at": "2026-09-03T02:20:16.233290+00:00", "flags": ["archived"], "formula": "round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)", "inputs": {"age_days": 3878, "days_push": 2381, "days_rel": null, "gap_med": null, "n_releases_24m": 0}, "score": 10, "version": 2}, "staleness": {"enrichment_outdated": false, "low_confidence": false, "scrape_days": 9, "stale_scrape": false}}