Difference between revisions of "Architecture Council/Meetings/June 12 2014"

Revision as of 12:02, 12 June 2014

Meeting Title:	Architecture Council Monthly Meeting
Date & Time:	Thursday May 8, 2014 at 1500 UTC / 0800 SFO / 1100 Ottawa / 1500 London / 1600 Berlin attention DST change HTML | iCal
Dial-in:	Let's use the Foundation's Asterisk setup for this call: North America (toll free) 1-866-569-4992 Germany (local call anywhere in Germany) 49-692-2224-6059 France (local call anywhere in France) 33-17-070-8535 Switzerland, Spain, Sweden, others - see Asterisk/Numbers Participant conference extension: 701 then enter pin: 51968 SIP clients can call 701@asterisk.eclipse.org, then enter pin 51968.

Attendees

All AC Members are invited.

• PMC Reps please confirm attendance or list your delegate below. Every PMC is required to name a primary and backup delegate, and to ensure that one delegate attends the meeting.

All Attendees

• In attendance:
  • Wayne Beaton, Marcel Bruch, Ian Bull, Jonas Helming, Maximilian Kögel, Martin O, Steffen Pingel, Denis Roy, Doug Schaefer, Eike Stepper, Krum Tsvetkov, Tom Watson

• Regrets: Christian Campo, Neil Hauge, Markus Knauer, Adrian Mos, Gunnar Wagenknecht

Agenda / Notes

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

Review of Last Meeting

• Architecture Council/Meetings/May 8 2014
• Still open items moved to #Action_Items

New Topics

• LTS naming convention (Wayne)
  • LTS working group: How to identify artifacts that are produced by the LTS forges ? (for support scenarios)
    • Eg Open Source "Eclipse Project X" receives a bug report, but maintainer of "project x" has never heard about that version
  • Idea: Use JAR signing - have LTS forge use its own certificate (available for LTS members to use when bundles come from a "collaboration forge")
    • Plus, special kind of "qualifier" to indicate LTS (dashes/underscores could confuse some tooling; monotonic increase of version)
    • Plus, build ID (from the About Dialog)
    • Ideally, want something in the build infrastructure that doesn't count on an LTS committer making the right change
      • Ian: Could also just put verification into the build ("fail if qualifier doesn't end with -lts")
  • Ian: Need restrictions on what version digits may be increased by LTS (Martin: 3rd digit only)
  • Martin: "how obvious" does it need to be that the bundle comes from LTS (eg what about "Provider: Eclipse LTS") ?
    • Wayne: Concern was that this requires changing the source
  • EPL: Derivative work must be "made available" (typically/hopefully as patches back upstream)
  • Likely looking at a corner case here, since "lts customes" will come to their lts provider first. Bundle version number is most important.

Marcel: Update on Logging

• GSOC is making good progress. Apache Commons, Log4J, and SLF4J are loggged to a EclipseLog appender. Configuration is done via logback.xml which is loaded from an expanded plugin folder. More details probably on the next meeting.

New AC Member Candidates

• One from Ian
• One from Doug/Andrew
• One from Wayne

Simrel Cycle

• Wayne: Much confusion with many projects; need to do a full evaluation and bring to the next meeting ... need to do better job on mentoring
• Committer Hangouts looking good (with help from Richard Burcher)
• EDP: "Releases" designed to be "major events", but for RT projects (Orion, Vertex) they want to release more often
  • AI Wayne - Bug will follow

Usage of Non-Singleton like Guava

• bug 437107 Policy for shared non-singleton libraries such as Guava
  • Marcel: Commented on the bug, enforcing everyone use one particular version of Guava doesn't make sense
    • Adding "uses" constraints and import statements to "help" the runtime resolve properly is all we can do
      • As specified in OSGi, and there's also a button in the IDE to add "uses" directives
    • Recommend doing a "compatibility test toolkit" to ensure missing "uses" etc are discovered
    • It's in the interest of consumers to have tested for compatibility and feed feedback into providers
  • Eike changed Guava requirements for CDO (boradened it a bit), submitter confirmed that this solved the problem
  • Wayne: But we have a PC Simrel requirement that one version of each 3rd party lib must be used (to reduce footprint etc) ... isn't that enough ?
    • Marcel: Sometimes can't enforce exactly the same ... because eg newer guava introduced an 1.6 BREE but some projects required an 1.4 BREE

Oomph Update

• Doug played with it ... it does more than traditional installers --> defer to a separate discussion
• Might consider a special download link on the downloads page (because it's an alternative to downloading ZIP's)
  • Mike M. would appreciate this, but would require good backing from the AC, PC and EPP
  • AI All Review info on mailing list and comment there

Mentoring

• Krum signed up for 2 projects as 2nd mentors but never got any requests ... is this normal ?
  • Wayne: For most of us, "mentoring" is just "answering questions"
  • Locationtech may need some more pro-active help, they come from a very different community

General Topics

• Eclipse Infrastructure - git, Gerrit, Maven, Hudson, Bugzilla, ...
  • CDT HIPP instance had some hickups this week (seemed like ran out of RAM)
  • Denis: 10 HIPP's shared per server, 8 Gig for each ... did not notice anything out of the ordinary
  • Denis: Projects can restart their HIPP in case of anything really problematic
  • Denis: One problem is that lots of projects set up their git triggers to "every minute" that can cause quite some load on the git servers
    • (probably 60 sec is the default!) Suggest polling every 5 minutes instead
    • Doug: Would be great if Gerrit jobs could "trigger on push" rather than polling
    • AI Thanh send out an E-Mail to projects

• Updates from the Board or the EMO

Action Items

• No new action items.
• Cleaned up old action items, see Architecture Council/Meetings/February 10 2011 for old stuff
• (old) Tim write up an initial wiki page with information for people to standardize on the tracing API
• (old) Martin revise the AC Wiki to make it easier to find the New Member Process. More links on homepage. More usage of categories.
• (old) Martin bug 315210 Make the AC mailing list open / moderated

Next Meeting

• Architecture Council/Meetings/July 10 2014