apache/gravitino - Open Source PR Review Scorecard

World's most powerful open data catalog for building a high-performance, geo-distributed and federated metadata lake.

C-Rank Grade: A (Welcoming) - 70/100

External PR Merge Rate: 60%

Response Time: -

First Timer Success: 61%

Frequently Asked Questions

Is apache/gravitino welcoming to first-time open-source contributors?

apache/gravitino has a recorded first-timer success rate of 61.4%. Repositories ranked A typically provide actionable feedback during code reviews and actively nurture new community contributors.

How fast can I expect code review feedback on my pull request?

Maintainers in apache/gravitino respond to incoming external pull requests in approximately 0.0 hours on average. Keeping PRs focused on single tasks and ensuring tests pass helps maintainers review faster.

What does the 69.5 C-Rank™ score (A Tier) represent?

The C-Rank™ system evaluates GitHub projects on a 0–100 scale using real data: PR merge rates, review turnaround time, active maintainer presence, and first-time contributor success. A score of 69.5 places apache/gravitino in the A tier.

What is the external contributor pull request merge rate for apache/gravitino?

The external contributor pull request merge rate for apache/gravitino is 59.8%, based on public PR activity from non-core contributors.

Are there Good First Issues available in apache/gravitino?

apache/gravitino currently has 20 active issue(s) tagged with beginner-friendly labels like "good first issue", "beginner", or "up-for-grabs".

apache
apache/gravitinoA•Welcoming3.2k
GitHub
Back to Explorer
apache

apache/gravitino

3,249
Active (30d)A•Welcoming(70/100)Java

World's most powerful open data catalog for building a high-performance, geo-distributed and federated metadata lake.

GitHub
Compare••
Jump to:

AI Maintainer Review Guidelines

Review Persona

Strict Quality Architect

Warmth Score
6.4/10
Patience Score
7.1/10
Nitpick Rate
45%

Rigorous architecture standards (70% critical review signals). Ensure PRs strictly follow guidelines before requesting review in apache/gravitino.

Top PR Submission Do's

  • •Add unit tests with >80% coverage for modified code paths
  • •Use conventional commit messages and clean branch names
  • •Link relevant GitHub issue ID in PR description pre-flight checklist

Top PR Friction Pitfalls (Don'ts)

  • •Do not submit unlinked PRs without referencing an existing issue
  • •Do not mix refactoring and feature logic into a single commit
  • •Do not ping maintainers repeatedly within 24 hours of opening
Response Velocity
-
No reviewer activity recorded

Average Response Latency

Tracks hours until a maintainer leaves a review, comment, or PR response.

Merge Efficiency
59.8%
Moderate PR acceptance rate

External Acceptance Rate

Percentage of community pull requests successfully merged into main.

First-Timer Success
61.4%
Strong first-timer PR acceptance rate

First PR Conversion

Rate at which developers submitting their first repository PR succeed.

Active Maintainers
63 core
Highly collaborative maintainer core
Diagnostic Health HUD
59.8%
Merge Gauge
61.4%
1st-Timer
Community Vibe42/100

Embed C-Rank Badge

Show contributors that your repository actively reviews and merges external pull requests.

GetMerged C-Rank badge for apache/gravitino
[![GetMerged C-Rank](https://getmerged.abhishekco.de/api/badge/apache/gravitino)](https://getmerged.abhishekco.de/apache/gravitino?utm_source=github&utm_medium=badge)

Active Good First Issues (5)

View on GitHub

What would you like to be improved? keep consistent with Lance community How should we improve? No response

📅 Opened Oct 13, 2026💬 0 comments
Quality: 35/100Contribute

What would you like to be improved? JobOperations has nine endpoints. Eight of them carry both @Timed and @ResponseMetered; cancelJob carries only @Timed: // server/src/main/java/org/apache/gravitino/server/web/rest/JobOperations.java:441 @POST @Path("runs/{jobId}") @Produces("application/vnd.gravitino.v1+json") @Timed(name = "cancel-job." + MetricNames.HTTP_PROCESS_DURATION, absolute = true) @AuthorizationExpression(expression = "METALAKE::OWNER || JOB::OWNER") public Response cancelJob( The Jersey listener registered by HttpServerMetricsSource creates response-class meters only for methods annotated with @ResponseMetered. Without it, gravitino-server.cancel-job.2xx-responses and the matching 4xx/5xx meters are never registered, so /metrics reports the latency of a cancel but never its outcome. A cancel that consistently fails with a 5xx increments nothing and is invisible to any dashboard or alert built on those meters, while every sibling endpoint in the same class reports its outco

📅 Opened Sep 9, 2026💬 1 comment
Quality: 75/100Contribute

Version main branch Describe what's wrong The create/register/add operations tracked by #12788 and addressed by #12791 do not cover all REST endpoints that require a request body. Several remaining operations still dereference a null request or invoke request.validate() without first rejecting a null body. An omitted or empty body, or a JSON literal null, therefore results in HTTP 500 instead of a structured HTTP 400 response. MetalakeOperations.setMetalake is a directly reproducible example. Source inspection found the same unguarded null-request pattern in the following operations, which should be validated and covered by regression tests when implementing the fix: BulkOperations removeUsers removeGroups CatalogOperations testConnection setCatalog MetalakeOperations setMetalake PolicyOperations setPolicy OwnerOperations setOwnerForObject PermissionOperations grantRolesToUser grantRolesToGroup revokeRolesFromUser revokeRolesFromGroup grantPrivilegeToRole revokePrivile

📅 Opened Sep 2, 2026💬 1 comment
Quality: 75/100Contribute

Version main branch Describe what's wrong Several create, register, and add REST operations call request.validate() without first rejecting a null request body. Null-safe name extraction only protects logging and error context; it does not protect the later request dereference. Affected operations include: Catalog, Schema, Table, Fileset, Topic, Policy, and Tag creation Function, Model, and JobTemplate registration User, Group, and Role creation Bulk user and group creation An empty or JSON null body should return a structured HTTP 400 response, but these operations currently return HTTP 500 after dereferencing the null request. Error message and/or stacktrace Expected: HTTP 400 Error code 1001 Error type IllegalArgumentException A message indicating that the request body cannot be null Actual: HTTP 500 An internal error response How to reproduce Send an authorized create-catalog request with a JSON null body: curl -i -X POST \ -H 'Content-Type: application/vnd.gravitino.v1+jso

📅 Opened Sep 1, 2026💬 2 comments
Quality: 75/100Contribute

What would you like to be improved? CatalogEventDispatcher currently delegates both pre-create and existing-catalog connection tests without emitting pre, success, or failure events. This prevents listeners and auditing integrations from observing these operations. How should we improve? Add event dispatching for all three testConnection overloads and cover their success and failure paths with unit tests. Follow the existing catalog event conventions for operation context and exceptions. Reuse the existing audit formatting and redaction behavior.

📅 Opened Aug 22, 2026💬 6 comments
Quality: 50/100Contribute
Looking for more Java beginner tasks?Explore Java GFI

Contributor Community Vibe Feedback

Rate what actually matters after opening a pull request here.

Have you contributed to this repo?

Rate your first-hand PR experience (review speed, maintainer responsiveness, and onboarding ease) to help other contributors.

3 ratings required
Maintainer helpfulness
Review speed
Beginner friendliness

Contributor Compatibility & Review Speed Analysis for apache/gravitino

When evaluating whether to contribute to apache/gravitino, response velocity and maintainer engagement are crucial. GetMerged continuously tracks pull request trajectories, first-comment latency, and code review rounds to help developers avoid submitting pull requests to backlogged repositories.

Currently, maintainers of apache/gravitino acknowledge new external contributions in approximately -. Out of all submitted pull requests from non-core authors in the last 180-day window, 59.8% were successfully merged into the primary branch.

Frequently Asked Questions - Contributing to apache/gravitino

01

Is apache/gravitino welcoming to first-time open-source contributors?

apache/gravitino has a recorded first-timer success rate of 61.4%. Repositories ranked Welcoming typically provide actionable feedback during code reviews and actively nurture new community contributors.

02

How fast can I expect code review feedback on my pull request?

The initial maintainer response time averages ~-. Keeping PRs scoped to single concerns and ensuring CI checks succeed will optimize review turnaround.

03

What does the 69.5 C-Rank™ score represent?

The C-Rank™ index scores repositories on a 0 to 100 scale using an objective formula: external PR merge rates, initial response speed, active maintainer count, and first-time contributor retention. A score of 69.5 places apache/gravitino in the Welcoming tier.

04

What is the external contributor pull request merge rate for apache/gravitino?

The external pull request merge rate is 59.8%. GetMerged isolates non-core community contributions so external developers get an accurate benchmark of PR acceptance probability.

05

Are there beginner Good First Issues open in apache/gravitino?

Yes, apache/gravitino currently has 20 active issue(s) tagged with beginner-friendly labels. You can inspect these directly from the repository issues tab.

GetMerged C-Rank™ Indexing Standard

All metrics displayed for apache/gravitino are automatically retrieved via the public GitHub API and recalculated daily. Insider pull requests submitted by repository owners or organization members are excluded from merge rate calculations to preserve objective external contributor statistics.