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/8371653644396037251
  
  • Meeting ID: 837 165 3644 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. Jared Whiklo 
3. Andrew Woods 
4. Peter Winckles
5. David Wilcox 
6. Ben Cail
7. Thomas Bernhart 
8. Daniel Lamb
9. Ben Pennell

Agenda

1. Announcements

2. Sprint Check-in
   1. Sprint board
   2. Feature tracking
3. PR roundup
4. Next steps for Plain Vanilla OCFL
5. Moving Fedora 6 (and other projects) to https://github.com/fcrepo ?
   1. When?
6. Containment Index
   1. How to handle SQL differences (H2, MySQL, PostgreSQL) - pluggable connectors?
7. Fedora 6 testing
   1. When can we start testing? Who can perform the tests? What infrastructure do we need?
   2. What other information do we need to have in the wiki?

8. <Add your topic here>

   Expand
   title Tickets resolved this week...
   Jira server DuraSpace JIRA jqlQuery filter=13111 serverId c815ca92-fd23-34c2-8fe3-956808caf8c5

   
   

Tickets

1. In Review

   Expand
   Jira server DuraSpace JIRA jqlQuery filter=13100 serverId c815ca92-fd23-34c2-8fe3-956808caf8c5

   
   

2. Please squash a bug!

   Expand
   Jira server DuraSpace JIRA columns key,summary,type,created,updated,due,assignee,reporter,priority,status,resolution maximumIssues 20 jqlQuery filter=13122 serverId c815ca92-fd23-34c2-8fe3-956808caf8c5

   
   

3. Tickets resolved this week:

   Expand
   Jira server DuraSpace JIRA columns key,summary,type,created,updated,due,assignee,reporter,priority,status,resolution maximumIssues 20 jqlQuery filter=13111 serverId c815ca92-fd23-34c2-8fe3-956808caf8c5

   
   

4. Tickets created this week:

   Expand
   Jira server DuraSpace JIRA columns key,summary,type,created,updated,due,assignee,reporter,priority,status,resolution maximumIssues 20 jqlQuery filter=13029 serverId c815ca92-fd23-34c2-8fe3-956808caf8c5

   
   

Notes

Announcements

1. Fedora will likely be holding more on-line events
2. Online programs (like Fedora) are finding increased interest due to the need for online services

Sprint update

1. Jira
   server DuraSpace JIRA serverId c815ca92-fd23-34c2-8fe3-956808caf8c5 key FCREPO-3264

   • Response codes in PR differ from draft spec
   • https://github.com/fcrepo/fcrepo-specification-atomic-operations/pull/8/files ^{Image Added}
   • ACTION: Danny to create JIRA to update spec for response codes

2. Jira
   server DuraSpace JIRA serverId c815ca92-fd23-34c2-8fe3-956808caf8c5 key FCREPO-3249

    
   • Message Bus
   • A PR should be available today
   • Outstanding question: What is the interplay with partially successful transactions
   • Is there a difference between FCREPO-3249 and FCREPO-3250?
     • maybe not
3. ACTION: Danny to ensure that a JIRA exists for scenario of transaction does not succeed completely, but rollback does succeed

4. Jira
   server DuraSpace JIRA serverId c815ca92-fd23-34c2-8fe3-956808caf8c5 key FCREPO-3247

    and 

   Jira
   server DuraSpace JIRA serverId c815ca92-fd23-34c2-8fe3-956808caf8c5 key FCREPO-3262

   • Both of these are done... just need to create pull-request
   • Jared has a non-sprint PR related to RebuildIT.java coming soon
   • Danny and Jared should coordinate... since they are both working on this class

5. Jira
   server DuraSpace JIRA serverId c815ca92-fd23-34c2-8fe3-956808caf8c5 key FCREPO-3265

• • Basically done
  • Possibility may exist for "transaction hijacking"... likely a non-issue
  • Question about multiple transactions modifying the same resource
    • There is a currently commented out integration test.. it would involve "object locking"
    • Optimistic locking is one possible approach, OCFL library supports this
    • ACTION: Ben P to create ticket to use OCFL optimistic locking in transactions
      • Could potentially take advantage of an existing "prepare()" method
      • Record state of resource when session is open
      • Potentially some Fedora-level object locking

1. • • Open question has mutable head would be impacted
     • ACTION: Peter W to create a JIRA to investigate support for optimistic locking and mutable head

2. Jira
   server DuraSpace JIRA serverId c815ca92-fd23-34c2-8fe3-956808caf8c5 key FCREPO-3267

    - needs team review
3. Plan to wrap up sprint by end of day tomorrow

Plain vanilla OCFL rebuild

1. ACTION: Danny to ensure JIRA exists for such a rebuild

Moving to fcrepo GitHub org

1. Likely make the transition around the time of the 6.0 Beta release

Fedora 6 testing

1. Continuing to organize around suite of performance and acceptance tests for Fedora 6

Actions

•  Danny Bernstein  to create JIRA to update spec for response codes (see: 2020-04-09 - Fedora Tech Meeting)
•  Danny Bernstein to ensure that a JIRA exists for scenario of transaction does not succeed completely, but rollback does succeed (see: 2020-04-09 - Fedora Tech Meeting)
•  Ben Pennell to create ticket to use OCFL optimistic locking in transactions (see: 2020-04-09 - Fedora Tech Meeting)
•  Peter Winckles to create a JIRA to investigate support for optimistic locking and mutable head (see: 2020-04-09 - Fedora Tech Meeting)
•  Danny Bernstein to ensure JIRA exists for vanilla OCFL rebuild (see: 2020-04-09 - Fedora Tech Meeting)
•  Who:  Clarify in documentation that multiple simultaneous writes to OCFL are not supported
•   Who:  After team has a chance to comment, send Ghost Node idea to general community for feedback
•   Who: Decide who works on what in the next sprint
  

...