2024-11-22 Hyrax Fedora 6 Working Group

Date

Nov 22, 2024@9am Eastern

Participants

@Arran Griffith
@Ben Pennell
@Bradley Watson
@Collin Brittle
@Dan Field
@Daniel Pierce
@Emily Porter
@Heather Greer Klein
@Jon Dunn
@Juliet Hardesty
@Kate Dohe
@Nicholas Mark Homenda
@Scott Prater
@Randall Floyd
@Rebekah Kati
@Tom Wrobel

indicates note taker

Goals

Updates on progress for ongoing development work

Discussion topics

Item

Item

Welcome

Updates:

General updates
- Nick Homenda is the new Hyrax PO - unable to attend this meeting
- Fedora 6.5.1 RC still available for testing - has anyone had a chance from this group to look?
Encoded slashes Fedora ticket in review (FCREPO-3933: Encoded slashes causing errors since fcrepo docker jumped from 6.4.1 to 6.5.0In Review )
- Not tagged to 6.5.1 - do we need this sooner than later?
Performance Testing

What work remains?

Performance Testing

Wrap Up

Next meeting:

Scheduled for Dec 27th - proposal of a new meeting? Or wait until Jan?

Next note taker: Randall Floyd

Notes

Action items

Check on if more work needs to be done to cover all the predicates from hyrax so that they get persisted to Fedora with a real URI, particularly FITS ones.

Discussed Items:

Nick Homenda is the new Hyrax PO - unable to attend this meeting

Rebekah Kati will continue to attend because of UNC’s interest.

Fedora 6.5.1 RC still available for testing - has anyone had a chance from this group to look?

Includes Emory’s feature for OCFL relative paths
Encoded slashes Fedora ticket in review (FCREPO-3933: Encoded slashes causing errors since fcrepo docker jumped from 6.4.1 to 6.5.0In Review )
- Not tagged to 6.5.1 - do we need this sooner than later?
- Dan Field working on it; PR submitted; no harm in creating a RC 2, releasing after the holidays, not a lot of testing done
- Daniel Pierce will help test 6.5.1 RC.
Randall Floyd noted bug in 6.5.0: Fedora returns an error if encoded

slash in path;

Hyrax/Valkyrie has workarounds for it, but would be nice to not to

need it; it would be good to include fix in next RC

Dan Field will get updated RC in Docker Hub
Daniel Pierce: Sirenia spec tests all passing, except for custom SQL

queries; working on organizing tests

Performance Testing

Julie Hardesty: is goal to get this work included in Nurax, then run

performance tests?

Daniel Pierce: Yes
- Emily Porter: Emory can also do some anecdotal performance testing;

maybe some comparison testing with pg-nurax

Nurax Challenges: getting enough data in repo for good performance testing

Brad Watson: may be able to help generate content (100,000 small

files) -- scripted backend

Emory noted issues with concurrency in AWS when doing performance testing

Emily: parallel processing with multiple processes can slow system

down

Collin Brittle: set up autoscaling with sidekiq and EC2
Daniel Pierce: metrics feature of Fedora used at Emory to help investigate?
Collin Brittle: bottlenecks are lower, in infrastructure
Emily: haven't stress-tested Fedora yet; Fedora persistence seems to be quick and stable
Daniel will add Fedora metrics to docker compose

Daniel: use Postgres as Fedora database?

Dan Field: Postgres is most tested, but others also use MariaDB

Arran: Dan will release new RC, will get it into Fedora docker; then into Nurax, and performance testing will continue

Next meeting:

Scheduled for Dec 27th - proposal of a new meeting? Or wait until Jan?

Cancel Dec. 27th meeting; Arran will check in in early January to see where things are at; we'll

communicate asynchronously

Cancel Dec. 27th meeting
Arran will check in January to see where testing is at
Dan Field will release updated RC, with encoded slash PR fix