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OSS Report: Netflix/maestro


Dependency Upgrades and Refactoring Dominate Netflix Maestro's Recent Development Efforts

Netflix Maestro, a workflow orchestrator designed for high scalability and usability, has seen significant activity focused on modernizing its codebase and enhancing usability features. The project is actively addressing dependency upgrades, such as transitioning from Joda-Time to Java 8's java.time API and updating Spring Boot, alongside introducing Docker support for easier deployment.

Recent Activity

Recent pull requests (PRs) reflect a concerted effort to modernize the codebase and improve user experience. PR #41 and PR #58 focus on replacing outdated libraries with current alternatives, aligning with Java's evolving standards. These efforts are crucial for maintaining compatibility and leveraging improvements in performance and security.

The introduction of Docker support in PR #20 highlights a push towards enhancing usability, allowing users unfamiliar with Java or Gradle to deploy Maestro more easily. However, challenges remain, as seen in PR #58's ongoing work-in-progress status due to Jackson integration issues, underscoring the complexities of upgrading foundational libraries.

Development Team Activity

  1. jun-he

    • Added SEL functions for workflow parameters.
    • Implemented timeout retry policy.
    • Exposed blocking flag for async actions.
    • Upgraded Jackson library (co-authored).
    • Total: 5 commits.
  2. varunu28

    • Co-authored Jackson upgrade.
    • Total: 1 commit.
  3. brittanyt-nflx

    • Co-authored fix for workflow description reset.
    • Total: 1 commit.
  4. HankGuo93

    • Co-authored import issue fix.
    • Total: 1 commit.
  5. rdeepak2002

    • Co-authored pull request template addition.
    • Total: 1 commit.
  6. natadzen

    • Co-authored README blog link addition.
    • Total: 1 commit.
  7. JonasJSchreiber, mroyme, hskimsky, pranaybattu

    • No recent commits but active in open PRs.

Of Note

Quantified Reports

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Recent GitHub Issues Activity

Timespan Opened Closed Comments Labeled Milestones
7 Days 1 0 1 1 1
14 Days 4 2 7 4 1
30 Days 17 11 44 17 1
All Time 37 14 - - -

Like all software activity quantification, these numbers are imperfect but sometimes useful. Comments, Labels, and Milestones refer to those issues opened in the timespan in question.

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Quantified Commit Activity Over 30 Days

Developer Avatar Branches PRs Commits Files Changes
jun-he 1 4/4/0 5 20 557
Varun Upadhyay 1 1/1/0 1 5 58
Deepak Ramalingam 1 1/1/0 1 1 14
brittanyt-nflx 1 1/1/0 1 2 7
Natallia Dzenisenka 1 1/1/0 1 1 2
HankGuo 1 1/1/0 1 1 2
Madhurjya Roy (mroyme) 0 1/0/0 0 0 0
None (hskimsky) 0 1/0/1 0 0 0
pranay_battu (pranaybattu) 0 1/0/0 0 0 0
Jonas Schreiber (JonasJSchreiber) 0 1/0/0 0 0 0

PRs: created by that dev and opened/merged/closed-unmerged during the period

Detailed Reports

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Recent Activity Analysis

The Netflix Maestro project has been actively engaging with its community, as evidenced by 23 open issues and a steady stream of recent activity, including multiple updates and discussions on various topics. Notably, there are several issues related to the integration of user interfaces and documentation improvements, indicating a focus on enhancing usability and user experience. A recurring theme is the need for better documentation and support for various features, such as microservice orchestration and UI access.

Several issues highlight critical gaps in documentation or features that users expect but are not yet available, such as the lack of a user interface (UI) for workflow management and the need for clearer guidance on API usage. The presence of unresolved issues regarding build errors and dependency management also suggests ongoing challenges that could impact user adoption and satisfaction.

Issue Details

Most Recently Created Issues

  1. Issue #75: How do I subscribe to events?

    • Priority: Medium
    • Status: Open
    • Created: 6 days ago
    • Updated: 4 days ago
  2. Issue #74: Is there a plan to support microservice orchestration?

    • Priority: Medium
    • Status: Open
    • Created: 9 days ago
    • Updated: 8 days ago
  3. Issue #72: Getting this error while running Gradlew build command -"> Task :cockroachdb-persistence:spotlessJavaCheck FAILED"

    • Priority: High
    • Status: Open
    • Created: 10 days ago
    • Updated: 8 days ago

Most Recently Updated Issues

  1. Issue #3: Add Maestro UI & workflow editor

    • Priority: High
    • Status: Open
    • Created: 65 days ago
    • Updated: 11 days ago
  2. Issue #65: Accessing the Maestro UI

    • Priority: Medium
    • Status: Open
    • Created: 23 days ago
    • Updated: 21 days ago
  3. Issue #61: Remove joda time dependency from netflix-sel module

    • Priority: Medium
    • Status: Open
    • Created: 27 days ago
    • Updated: 21 days ago

Summary of Key Issues

  • The most pressing issue appears to be related to build errors (#72), which could hinder developers' ability to contribute effectively.
  • There is a significant demand for a user interface (#3) and better access to existing UI features (#65), which indicates that users are looking for more intuitive ways to interact with the system.
  • The ongoing discussions about removing deprecated dependencies like Joda-Time (#61) suggest an effort to modernize the codebase, which is crucial for long-term maintainability.

Overall, these issues reflect a mix of technical challenges and user experience enhancements that are vital for the project's growth and adoption within the developer community.

Report On: Fetch pull requests



Overview

The analysis of the pull requests (PRs) for the Netflix Maestro repository reveals a mix of ongoing enhancements, refactoring efforts, and documentation updates. There are currently five open PRs and twelve closed PRs, showcasing a range of activities from dependency upgrades to feature additions.

Summary of Pull Requests

Open Pull Requests

  • PR #67: Update README.md
    Created 19 days ago, this PR aims to correct a grammatical error in the README file. The change is minor but contributes to the overall professionalism of the documentation.

  • PR #58: [WIP] Upgrade spring-boot-starter from version 2.7.x to 3.3.x
    Created 28 days ago, this work-in-progress PR focuses on upgrading Spring Boot dependencies and transitioning from javax to jakarta packages. It addresses compatibility issues with Jackson but has encountered problems that require further work.

  • PR #41: chore: remove Joda-Time dependency from maestro-common #25
    Created 29 days ago, this PR replaces Joda-Time with the Java 8 java.time API, modernizing the codebase. This change is significant as it aligns with current best practices in Java.

  • PR #31: Remove quartz dependency
    Also created 29 days ago, this PR removes the Quartz library dependency and refactors the cron creation logic. This change simplifies the code but may limit functionality regarding timezone-aware cron expressions.

  • PR #20: Docker with GitHub actions
    Created 31 days ago, this PR introduces Docker support for the maestro-server, allowing users to deploy without needing to build from source. This enhancement improves usability for developers unfamiliar with Java or Gradle.

Closed Pull Requests

  • PR #71: Add two SEL functions...
    Closed 13 days ago, this feature added two new functions to support workflow parameters and step timings, enhancing functionality.

  • PR #70: Support the timeout retry policy
    Closed 13 days ago, this PR introduced a retry mechanism for timed-out steps, addressing user needs for more robust workflow management.

  • PR #69: Surface blocking flag...
    Closed 15 days ago, this PR surfaced a blocking flag in the public interface to facilitate asynchronous actions.

  • PR #66: don't reset description when pushing new workflow
    Closed 21 days ago, this bugfix ensures that workflow descriptions are preserved during updates.

  • PR #62: Improve SEL function getAsText...
    Closed 24 days ago, this bugfix addressed locale issues in SEL functions to ensure consistent behavior across different environments.

  • PR #57: Refactor: Update build.gradle...
    Closed 23 days ago, this PR updated build configurations and fixed import orders to comply with formatting checks.

  • PR #44: modify to get local day of week
    Closed due to redundancy as another PR resolved similar issues related to locale handling.

  • PR #30: Pull request template
    Closed as it introduced a template for future PRs to streamline contributions.

  • PR #28 & PR #24 & PR #23: Various updates to README files for broken links and new blog posts were merged successfully.

  • PR #17: Upgrade jackson to 2.15.4
    Closed due to successful merging after addressing compatibility issues with newer Jackson versions.

Analysis of Pull Requests

The current set of pull requests reflects an active development environment within the Netflix Maestro project. A notable trend is the focus on modernizing dependencies and improving code quality through refactoring efforts. For instance, both PRs #41 and #58 aim at replacing outdated libraries (Joda-Time and Spring Boot) with more current alternatives that align with Java's evolving standards. This is crucial not only for maintaining compatibility but also for leveraging performance improvements and security patches inherent in newer library versions.

Another significant theme is the enhancement of usability features such as Docker support (PR #20) and improved error handling mechanisms (e.g., timeout retry policies in PR #70). These changes indicate a responsiveness to user feedback and an understanding of developer needs in deploying and managing workflows effectively. The introduction of Docker images allows users who may not be familiar with Java or Gradle to utilize Maestro more easily, broadening its accessibility.

However, there are also signs of potential friction within the development process. For example, PR #58 has been marked as a work-in-progress due to complications arising from Jackson integration issues. This highlights challenges that can arise when upgrading foundational libraries—issues that may require significant debugging and testing efforts before they can be resolved satisfactorily. Additionally, discussions around timezone handling in PR #31 suggest that while refactoring can simplify codebases, it may also lead to loss of functionality if not carefully managed.

The presence of several closed PRs focused on bug fixes (like PRs #66 and #62) indicates an ongoing commitment to maintaining code quality and addressing user-reported issues promptly. The decision to close PRs like #44 due to redundancy shows a collaborative approach where contributors are encouraged to find optimal solutions collectively rather than duplicating efforts.

In summary, the pull request activity within Netflix's Maestro project illustrates a healthy balance between innovation through new features and maintaining high standards through refactoring and bug fixing. The community engagement metrics further support this positive trend, suggesting that contributors are actively involved in refining and enhancing the project while navigating challenges associated with dependency management and feature implementation.

Report On: Fetch commits



Repo Commits Analysis

Development Team and Recent Activity

Team Members and Recent Contributions

  1. jun-he

    • Recent Activity:
    • Added two SEL functions for workflow parameters and step end time retrieval.
    • Implemented timeout retry policy support.
    • Exposed a blocking flag for async actions in the public interface.
    • Upgraded Jackson library to version 2.15.4 (co-authored).
    • Collaborated with other team members on multiple PRs.
    • Total Contributions: 5 commits, 557 changes across 20 files.
  2. varunu28

    • Recent Activity:
    • Co-authored a commit to upgrade the Jackson library.
    • Total Contributions: 1 commit, 58 changes across 5 files.
  3. brittanyt-nflx

    • Recent Activity:
    • Co-authored a fix to prevent resetting descriptions when pushing new workflows.
    • Total Contributions: 1 commit, 7 changes across 2 files.
  4. HankGuo93

    • Recent Activity:
    • Co-authored a fix for an import issue in a test file.
    • Total Contributions: 1 commit, 2 changes across 1 file.
  5. rdeepak2002

    • Recent Activity:
    • Co-authored the addition of a pull request template.
    • Total Contributions: 1 commit, 14 changes across 1 file.
  6. natadzen

    • Recent Activity:
    • Co-authored a commit to add a blog link to the README.
    • Total Contributions: 1 commit, 2 changes across 1 file.
  7. JonasJSchreiber, mroyme, hskimsky, pranaybattu

    • Recent Activity: No recent commits; however, they have open PRs indicating ongoing involvement in the project.

Patterns and Themes

  • Active Development: The primary contributor, jun-he, has been highly active with multiple significant feature additions and improvements over the past month.
  • Collaboration: Several commits are co-authored, indicating strong collaboration among team members on various features and fixes.
  • Feature Focused: Recent activities primarily revolve around enhancing functionality (e.g., SEL functions, retry policies) and improving usability (e.g., public interface adjustments).
  • Community Engagement: The presence of multiple contributors suggests an engaged team working towards maintaining and enhancing the project's capabilities.

Conclusions

The development team is actively engaged in enhancing the Netflix Maestro project, with a focus on adding features that improve workflow orchestration capabilities. Collaboration among team members is evident through co-authored commits, reflecting a cohesive working environment aimed at delivering robust solutions for users.