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(Using Case Studies to Strengthen Oversight Practices)

Introduction
This guide was developed within the Apache Incubator as an internal learning resource to help the IPMC and mentors reflect on patterns observed across past podlings. It is not an audit or assessment of individual projects but a tool to strengthen future oversight and mentoring through shared lessons. By analysing where the IPMC acted early, responded late, or could have recognised signals sooner, the Incubator aims to continuously improve its role in supporting healthy communities and upholding ASF governance standards.

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• Diversity and sustainability concerns appeared in multiple reports before escalation.
• Release or communication issues persisted across several reporting cycles.
• Mentor observations were not reinforced through IPMC action or follow-up.

Lesson: Awareness must lead to visible and timely engagement.
Prompt, supportive intervention prevents repeated cycles of low activity or uncertainty.

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These cases show cases where cultural or governance misalignment remained uncorrected until later. Strong technical output sometimes masked deeper structural challenges that limited sustainability. These examples describe past incubation stages of incubation and  and do not reflect the current state of the projects.

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Entered the Incubator with an existing ecosystem under the OpenZipkin GitHub organisation. While the community produced releases, most development and discussion continued on external infrastructure and instant messaging channels rather than ASF mailing lists. The IPMC repeatedly discussed alignment repeatedly, but cultural differences persisted, and the community eventually voted to withdraw and continue development outside the ASF.

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Trafodion

Donated by HP as a an SQL on HBase database. The project met the release and process requirements and graduated successfully; however, contributor diversity remained limited, and activity later declined, ultimately leading to retirement.

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By transforming historical cases into structured learning, the IPMC fosters institutional awareness of what effective oversight entails. This strengthens mentoring, improves graduation the quality of graduations, and ensures the consistent application of the ASF values of transparency, collaboration, and self-governance. In doing so, the Incubator not only supports individual podlings but also contributes to the ASF’s broader ability to sustain healthy, self-directed communities across generations of projects.

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• Model ASF communication: Ensure that all substantive decisions and technical discussions occur on the dev@ list, rather than in private or external channels.
• Encourage shared responsibility: Help rotate release managers, reviewers, and vote initiators early to build resilience.
• Promote transparency: Summarise outcomes from GitHub or chat discussions on the public mailing list.
• Acknowledge progress: Recognise Publicly recognise ASF-compliant releases and new contributors publicly to reinforce community engagement.

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• Check communication scope: Are major discussions or decisions occurring off outside the ASF infrastructure (for examplee.g., Slack, private messaging, or corporate tools)?
• Watch community balance: Is one company or individual driving the majority of releases, decisions, or branding?
• Support contributor growth: Identify and encourage new committers or PPMC members to participate in votes and discussions.
• Escalate thoughtfully: When alignment with ASF process or culture remains unclear after guidance, raise the issue on incubator-general for wider IPMC visibility.

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IPMC reflection:
Trust is essential, but it must be complemented by periodic verification. Cross-checking mailing-list participation, release activity, and contributor diversity helps identify gaps early. When signals are unclear, discussion should begin openly on the podling’s dev@ list, and if . If issues persist or require broader input, they should be raised transparently on incubator-general for wider guidance.

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IPMC reflection:
Deferring graduation is not a failure -it is a safeguard. When handled transparently and constructively, a delay provides gives podlings time to mature their governance, diversify participation, and correct address unreported issues. The IPMC’s willingness to ask difficult questions protects both the project and the ASF’s long-term reputation.

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