apache/flink-cdc
What happens to a stranger's pull request here, in the Porchlamp snapshot of 17 October 2026.
Outside pull requests to apache/flink-cdc got a first human reply in a median of 46 hours (97 pull requests, 19 April to 16 October 2026); 43% got none within 14 days. It ranks 1,388 of 3,219 overall. For first-time contributors it ranks 884 of 1,525 (the bottom 43%).
| Rank | 1,388 of 3,219 |
|---|---|
| Score | 52.17 |
| Tier | C |
| Median first reply | 46 hours |
| 14-day no-reply share | 43% |
| First-timer rank | 884 of 1,525 |
| Ecosystem | Java |
| Window | 19 April to 16 October 2026 |
Composite
- Rank
- 1,388 of 3,219
- Score
- 52.17
- Tier
- C
- Coverage
- 100% · Full
- Quadrant
- Nursery
Coordinates: leverage 48.7 (coverage 100%), friction 42.3 (coverage 100%)
Five pillars
| Pillar | Score | Coverage |
|---|---|---|
| Responsiveness | 50.2 | 100% |
| Criticality | 21.0 | 100% |
| Governance | 73.3 | 100% |
| Rigor | 78.5 | 100% |
| Accessibility | 53.0 | 100% |
The measured parameters
Responsiveness
| Parameter | Value | Score | Count | Window | Source |
|---|---|---|---|---|---|
| Decision Rate (90d)Share of outside pull requests that were merged or closed within 90 days. | 51.6% | 64.5 | 62 | 19 April to 18 July 2026 | primaryraw/pr_window/apache__flink-cdc.json |
| PR Ghost Rate (14d)Share of outside pull requests with no maintainer response, merge or close within 14 days. | 42.5% | 15.0 | 127 | 20 April to 17 October 2026 | primaryraw/pr_window/apache__flink-cdc.json |
| First-timer Merge RateShare of first-time outside authors' decided pull requests that were merged. | 58.3% | 72.9 | 24 | — | primaryraw/author_history/apache__flink-cdc.json |
| Time to First ResponseMedian hours from an outside pull request opening to its first substantive human reply. | 46.0 hours (1.9 days) | 51.5 | 97 | 19 April to 16 October 2026 | primaryraw/pr_window/apache__flink-cdc.json |
| Time to Merge (p90)Hours within which 90% of merged outside pull requests were merged. | 806.5 hours (33.6 days) | 17.8 | 77 | 19 April to 16 October 2026 | primaryraw/pr_window/apache__flink-cdc.json |
Criticality
| Parameter | Value | Score | Count | Window | Source |
|---|---|---|---|---|---|
| DependentsPackages in the registry that depend on this project, counted once each. | 0 | 4.9 | — | — | primaryraw/dependents/apache__flink-cdc.json |
| Monthly DownloadsDownloads from the package registry in a month. | Not shown: Not applicable | ||||
| OpenSSF CriticalityOpenSSF criticality score from 0 to 1, computed from the project's public activity signals. | 0.3944 | 39.4 | — | — | primaryraw/github_meta/apache__flink-cdc.json |
Governance
| Parameter | Value | Score | Count | Window | Source |
|---|---|---|---|---|---|
| Elephant FactorThe fewest organisations that account for half of the last year's commits. | 5 | 100.0 | 288 | — | primaryraw/commits_365d/apache__flink-cdc.json |
| Legal IP RegimeThe contributor licence regime: DCO, none, a foundation CLA or a corporate CLA. | Foundation CLA | 75.0 | — | — | primaryraw/governance/apache__flink-cdc.json |
| Promotion LadderHow openly a contributor can become a maintainer, from closed to verified. | No written path to becoming a maintainer | 40.0 | — | — | primaryraw/governance/apache__flink-cdc.json |
Rigor
| Parameter | Value | Score | Count | Window | Source |
|---|---|---|---|---|---|
| AI Policy PostureWhether the project has a written policy on AI-assisted contributions. | Written AI policy | 95.0 | — | — | primaryraw/governance/apache__flink-cdc.json |
| Pipeline DefensesHow well the project's build and review pipeline defends against bad changes, 0 to 100. | 84.9524 | 85.0 | 105 | — | proxy:review_ciraw/pr_window/apache__flink-cdc.json |
| Substantive Review RateShare of decided pull requests that received a substantive review. | 42.7% | 53.4 | 96 | 19 April to 16 October 2026 | primaryraw/pr_window/apache__flink-cdc.json |
Accessibility
| Parameter | Value | Score | Count | Window | Source |
|---|---|---|---|---|---|
| Developer ExperienceDeveloper experience, 0 to 100: half CI run time, half setup signals. | 20 | 20.0 | 25 | — | primaryraw/actions_runs/apache__flink-cdc.json |
| Newcomer ConversionShare of first-time authors whose first pull request merged within 180 days. | 60.0% | 100.0 | 10 | — | primaryraw/author_history/apache__flink-cdc.json |
| Newcomer Issue SupplyOpen, unassigned, up-to-date issues marked for newcomers. | 0 | 0.0 | — | — | primaryraw/gfi/apache__flink-cdc.json |
| Newcomer Return RateShare of those merged first-time authors who sent a second pull request within 90 days. | 83.3% | 100.0 | 6 | — | primaryraw/author_history/apache__flink-cdc.json |
Persona view
| Persona | Rank | Score | Tier | Status |
|---|---|---|---|---|
| Balanced | 1,388 of 3,219 | 52.17 | C | Rated |
| First-timer | 884 of 1,525 | 54.40 | C | Rated |
| Career capital | This repository's production-criticality signal is not yet high enough for career-capital ranking. | |||
| Senior systems | 761 of 1,276 | 51.54 | C | Rated |
| AI-assisted | 813 of 3,696 | 58.00 | B | Rated |
Integrity
- Snapshot
- 2026-10-17
- Raw hash
- 988676f38a4b68cd6a295716f5a858cc9397fb23efab9f358bf7e36d9b57c837
No suspicion flags on this repository.
The full record is in data/2026-10-17/repos/cc.json, under the key apache/flink-cdc.
How every number is measured: Porchlamp methodology.
Open an issue about this record and say what looks wrong.
Porchlamp (2026). apache/flink-cdc. Snapshot 2026-10-17. https://porchlamp.org/projects/apache/flink-cdc/. CC BY 4.0.
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