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Architecture Council/Minutes November 13 2008

Meeting Title: Architecture Council Monthly Meeting
Date & Time: Thursday November 13, 2008 at 1600 UTC / 0800 SFO / 1100 Ottawa / 1600 London / 1700 Berlin
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Attendees

Agenda / Notes

  • Feel free to edit, but not during the call!

Review of Action Items

  • Last meeting Architecture Council/Minutes October 9 2008#Action Items
  • (old) Mik to create initial "architectural walkthrough" material for mylyn. One more to follow before publicly announcing?
  • (old) MichaelS to draft an E-Mail about the "plugin granularity" idea, searching for people to lead the effort
  • (old) Michael to flesh out the Patterns idea and remind the EAC
  • (old) Everyone to hyperlink to their Bio on the Architecture Council/Members and Mentors page
  • (old) Everyone to hyperlink on the new Architecture Council/Links Collection to interesting architecture-related blogs, articles or other resources
  • (old) All PMC's to list mentor-less projects in their domain on the Architecture Council/Members and Mentors#Projects that need mentors page: Wayne for Technology, McQ for Eclipse, Ed for Modeling, Tom for RT; WTP to add ATF to the page
  • Wayne to file bug for portal to add fields for project mentors
  • Ed, Gunnar, Karsten to E-Mail their affiliation to Anne Jacko <emo@eclipse.org>
  • Georg to send an E-mail to the AC list with questions / things unclear for him as a new AC member
  • Martin to start a Wiki page explaining what's good about having a mentor
  • Martin to contact David Orme
  • Ok green.gif Martin bug 250320 ask webmaster to create eclipse.org-committers-announce mailing list
  • Ok green.gif Martin bug 250315 asking for better attendance tracking at AC meetings
  • Ok green.gif Martin bug 250317 for discussing ways of spreading EMO information

Administrative

  • New Members: Tom Schindl (appointed), Karsten Schmidt (Strategic Consumer Rep)
  • Tracking Meeting Attendance

News from the EMO & Councils

  • EMO: How to officially communicate Requirements (as per the board, dev process, IP policy...) to the PMCs, Project Leads, Committers?
  • RC - Roadmap Process: RequirementsCouncilThemesAndPriorities
  • Wayne: Community Development for Eclipse Projects page
  • PC - Richard Gronback: New Galileo Requirements from the Planning Council?
    • Must do: Use only Published API by M6
    • Must do: Provide basic Capability / Activity Definitions by M6
    • Must do: Use Babel by M6
  • Don: StAC meeting at Eclipse World?

Recent EAC bugs

How to start Releng?

Top Ten Recommendations

Relationship to E4

Concurrency

  • Examples: bug 245573 comment 12 (Dali JPA Tools Deadlock, John CC'd to EAC); bug 246840 discussion about ISchedulingRule (saving project preferences)
  • What is causing issues?
    • work performed during class loading (Activator.start()) - unknown context, can run at unpredictable times
    • work performed in callbacks - unknown context, avoid synchronous callbacks
    • General recommendations: (e.g. avoid synchronous callbacks, avoid in Activator.start(), static initializers or Singleton getters) - a general recommendation could be to avoid performing work at unpredictable times, but that would recommend against lazy initialization in general
    • Does anybody have a well-working, consistent model on top of the current infrastructure?
    • Totally new concurrency mechanism as part of E4 ?
      • David Orme mentions DataBinding Realms and the Threads Considered Harmful blog which references Erlang message-based concurrence
      • Would it help to become more asynchronous under the hood, even if old APIs need to remain for compatibility?
      • Are there any other good known models for concurrency?
    • Better Javadoc ?
      • Example: ISchedulingRule.isConflicting() vs. ISchedulingRule.contains(), and how does it relate to RuleFactory and MultiRule?
    • Articles ? - John referenced the resouce-deltas article


Mentoring New Projects

  • We need more Architecture Council members to step up and become project mentors
    • New projects require two mentors (a Good Thing™)
  • How do new projects find/attract a mentor?
    • Mailing list, bugzilla?
    • "Work the crowd"
  • Experiences?
    • What could be improved?
    • Webpage improvements: more pre-canned content for new projects (like Sourceforge)?

Other Ideas for Discussion

  • Mentoring Galileo: What could be improved?
    • Running each project's unittests with full Galileo installed; especially interesting for Performance tests
    • Don't duplicate work done by the Planning Council
    • Integrated bug reporting: Mylyn is providing a bug/error/enhancement reporting facility that will provide a flexible and product-configurable mapping between features, bundles and bug trackers bug 212209 (Example: http://wiki.eclipse.org/images/8/86/Mylyn-Bug-Reporting-Example.jpg ). Do we want this for Galileo?
  • E4 now has bi-weekly calls -- won't discuss E4 on the EAC unless asked / invited
  • Eclipse Pain Points

Action Items

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