apache/flink
What happens to a stranger's pull request here, in the Porchlamp snapshot of 17 October 2026.
Outside pull requests to flink got a first human reply in a median of 0.2 hours (472 pull requests, 18 April to 15 October 2026); 0% got none within 14 days. It ranks 1,235 of 4,322 overall. It is not ranked for first-time contributors: not enough evidence to show under this lens.
Rating
- Score: 57.82
- Coverage: 81% · Ceiling A
- Tier: B
- Quadrant: Nursery
- Ecosystem: Maven (Java)
Five pillars
| Pillar | Score | Coverage |
|---|---|---|
| Responsiveness | 92.6 | 55% |
| Criticality | 21.7 | 100% |
| Governance | 73.3 | 100% |
| Rigor | 71.8 | 100% |
| Accessibility | 25.5 | 50% |
Rank in each lens
| Lens | Standing |
|---|---|
| Balanced | Rank 1,235 of 4,322 |
| First-timer | Not ranked: Not enough evidence to show under this lens. |
| Career capital | Not ranked: This repository's production-criticality signal is not yet high enough for career-capital ranking. |
| Senior systems | Rank 624 of 1,346 |
| AI-assisted | Rank 670 of 4,440 |
The measured parameters
| Parameter | Value | Count | Window | What it measures |
|---|---|---|---|---|
| Time to First Response | 0.176 | 472 | 18 April to 15 October 2026 | Median hours from an outside pull request opening to its first substantive human reply. |
| Decision Rate (90d) | Not shown: Insufficient sample size | — | — | Share of outside pull requests that were merged or closed within 90 days. |
| First-timer Merge Rate | Not shown: Insufficient sample size | — | — | Share of first-time outside authors' decided pull requests that were merged. |
| PR Ghost Rate (14d) | 0 | 320 | 20 April to 17 October 2026 | Share of outside pull requests with no maintainer response, merge or close within 14 days. |
| Time to Merge (p90) | 217.2142 | 295 | 18 April to 15 October 2026 | Hours within which 90% of merged outside pull requests were merged. |
| Dependents | 0 | — | — | Packages in the registry that depend on this project, counted once each. |
| OpenSSF Criticality | 0.3809 | — | — | OpenSSF criticality score from 0 to 1, computed from the project's public activity signals. |
| Monthly Downloads | Not shown: Not applicable | — | — | Downloads from the package registry in a month. |
| Legal IP Regime | FOUNDATION_CLA | — | — | The contributor licence regime: DCO, none, a foundation CLA or a corporate CLA. |
| Elephant Factor | 4 | 994 | — | The fewest organisations that account for half of the last year's commits. |
| Promotion Ladder | AD_HOC | — | — | How openly a contributor can become a maintainer, from closed to verified. |
| Pipeline Defenses | 67.5 | — | — | How well the project's build and review pipeline defends against bad changes, 0 to 100. |
| AI Policy Posture | REGULATED | — | — | Whether the project has a written policy on AI-assisted contributions. |
| Substantive Review Rate | 0.4358 | 335 | 18 April to 15 October 2026 | Share of decided pull requests that received a substantive review. |
| Newcomer Issue Supply | 0 | — | — | Open, unassigned, up-to-date issues marked for newcomers. |
| Newcomer Conversion | Not shown: Insufficient sample size | — | — | Share of first-time authors whose first pull request merged within 180 days. |
| Newcomer Return Rate | Not shown: Insufficient sample size | — | — | Share of those merged first-time authors who sent a second pull request within 90 days. |
| Developer Experience | 85 | 30 | — | Developer experience, 0 to 100: half CI run time, half setup signals. |
Similar projects
The ranked projects nearest this one in the same ecosystem.
- stleary/JSON-java (rank 1,198)
- JCTools/JCTools (rank 1,205)
- line/armeria (rank 1,214)
- apache/iotdb (rank 1,242)
- deepjavalibrary/djl (rank 1,261)
Evidence
- Snapshot 2026-10-17, data as of 17 October 2026.
- Record hash:
1af04eeb7b309fd2c748d3c534e3516d1c6310839556597ac29899e2fb8c1e26 - The full record is in data/2026-10-17/repos/04.json, under the key
apache/flink. - How every number is measured: Porchlamp methodology.
Is something wrong?
Open an issue about this record and say what looks wrong.