Time/Place

This meeting is a hybrid teleconference and slack chat. Anyone is welcome to join...here's the info:

• Time: 11:00am Eastern Daylight Time US (UTC-4)
• Audio/Video Conference Link: https://lyrasis.zoom.us/j/396037251
  
  • Meeting ID: 396 037 251
  • Find your local number: https://lyrasis.zoom.us/u/ad6Xb7q3ia

  • Join fedora-project.slack.com on the "tech" channel

  • Self-register at: http://slack.fcrepo.org/

Attendees 

1. Danny Bernstein
2. Andrew Woods
3. Peter Winckles
4. Ben Pennell 
5. Ben Cail 
6. David Wilcox (out)
7. Daniel Lamb  
8. Calvin Xu

Agenda

1. Announcements/Updates
   1. Fedora Online User Group (Week of August 10)
   2. Ongoing sprints
   3. 5.1.1 release
2. Planned Breaking Changes (standing topic)
   
   1. dedicated slack channel for breaking changes or other critical notifications? 
3. Demo Server progress:  http://demo.fcrepo.org/fcrepo
4. Next Demo
5. Committers/Leaders call debrief
   1. 4/5 → 6 Migration
      1. fcrepo-import-export
         1. reads F4/5 and exports to transparent RDF/binaries
         2. reads exported RDF/binaries and writes to F4/5 API
      2. migration-utils
         1. reads F3 content, writes F6 OCFL
      3. fcrepo-upgrade-utils
         1. clean slate for upgrade tooling
6. August Sprint Focus
7. Fedora 6 Testing
8. PRs 

9. Your Topic Here

   Tickets resolved this week...

   type	key	summary	assignee	reporter	priority	status	resolution	created	updated	due
   Unable to locate Jira server for this macro. It may be due to Application Link configuration.

Tickets

1. In Review

   Click here to expand...

   type	key	summary	assignee	reporter	priority	status	resolution	created	updated	due
   Unable to locate Jira server for this macro. It may be due to Application Link configuration.

2. Please squash a bug!

   Click here to expand...

   key	summary	type	created	updated	due	assignee	reporter	priority	status	resolution
   Unable to locate Jira server for this macro. It may be due to Application Link configuration.

3. Tickets resolved this week:

   Click here to expand...

   key	summary	type	created	updated	due	assignee	reporter	priority	status	resolution
   Unable to locate Jira server for this macro. It may be due to Application Link configuration.

4. Tickets created this week:

   Click here to expand...

   key	summary	type	created	updated	due	assignee	reporter	priority	status	resolution
   Unable to locate Jira server for this macro. It may be due to Application Link configuration.

Notes

• Slack channel for breaking changes during as Fedora 6 is being developed?
  • Move most development conversations into a "bleeding edge" channel (which will replace the "sprint" channel), and then post to the "tech" channel if a backwards breaking change is made
• Demo Server
  • Auto-updating on AWS every time a new image is pushed to Dockerhub (in theory)
  • REST API is working, but UI isn't available. Andrew Woods and Danny Bernstein will circle up so they both have access and can work on it.
• "Next Demo" topic pushed back until David Wilcox gets back from vacay
• Committers / Leaders Call Debrief
  • Getting everyone on Fedora 6 is top priority
  • For 4/5
    • Export content using Import/Export tooling (this exists)
    • Import the exported content (does not exist yet)
  • How best to manage the fact that you've got to double the data?  Unavoidable, most likely just needs to be clearly explained to the user in documentation.
  • Is there a chance to share common code between the other tooling (migration utils, import/export, etc...) when moving to Fedora 6?
  • Migration tooling must be there before 6 can be an alpha
• Migration tool strategy: 
  • extract abstraction layer for writing fedora objects to ocfl from core into a common library
  • extract read fcrepo4/5 export functionality from fcrepo-import export tool into another common library
  • Use above libraries in the fcrepo-upgrade-util for transforming an export to Fedora OCFL.
  • Danny Bernstein  to create JIRAs to organize this work.

• Calvin Xu  is experiencing slowness when starting up Fedora 6 on 3 million object OCFL repo (migrated from Fedora 3)
  • Do we need progress meter for index rebuild activity? Is this even feasible?
    • How about "resume" index build functionality?
      
      •  We would have to be able to assume that the OCFL repo had not changed
      • We also do not know at this time how long it takes to iterate over the repo (without doing any index updates).
  • Next steps:
    • Calvin Xu will try using a separate database server (mysql, mariadb or postgres) on a small subset of items (1000) to measure performance improvement and will report back on next week's call.

Actions

• Danny Bernstein to ensure that a JIRA exists for scenario of transaction does not succeed completely, but rollback does succeed (see: 2020-07-23- Fedora Tech Meeting)
• Peter Winckles to create a JIRA to investigate support for optimistic locking and mutable head (see: 2020-07-23- Fedora Tech Meeting)
• Who:  Clarify in documentation that multiple simultaneous writes to OCFL are not supported
• Peter Winckles Create a Jira to update the locations files stored in OCFL
• migration-utils - translating RELS-EXT/INT into RDF in Fedora 6: is the functionality there? If not, add it.