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Hydra Tech Call 2015-09-30

Samvera Community Wiki

Hydra Tech Call 2015-09-30

Jun 16, 2017

Time: 9:00am PDT / Noon EDT

Call-In Info: 1-641-715-3660, access code 651025

Moderator: Justin Coyne

Notetaker: Colin Gross

Attendees:

  • Peter from Alberta

  • Ryan from Oregon State

  • Justin from DCE

  • Colin from UMich

  • Drew from WGBH

  • Adam from PSU

  • Carolyn from PSU

  • Anna from Chemical Heritage Foundation

  • Trey from Princeton

  • Steven from Temple

 

Agenda:

  1. Call for agenda items

  2. Hydra Connect wrap up

  3. Side loading and derivatives (hydra-derivatives 3.0)

    1. https://github.com/projecthydra/hydra-derivatives/pull/84

    2. https://github.com/projecthydra-labs/curation_concerns/pull/347

  4. Other urgent things:

    1. https://github.com/projecthydra/hydra-derivatives/pull/83

  5. Full Text extraction Solr errors. Are these correct?

    1. https://github.com/projecthydra/sufia/blob/master/sufia-models/lib/tasks/sufia-models_tasks.rake#L39-L70

    2. https://github.com/projecthydra-labs/hydra-works/blob/fae0dcae973957ab9acbcb0a28400b623d9a6907/lib/tasks/hydra-works_tasks.rake#L6-L38

  6. Next call

    1. Date: October 7, 2015

    2. Moderator: Steven Ng

    3. Notetaker: Drew Myers

Call for agenda items

  • Active Fedora pr 901 from Trey. Contained rdf sources.

Hydra Connect wrap up

  • Wiki is getting documented with slides and notes.

  • No talks were recorded.

  • Future hydra connect talks could be recorded. expense? volunteers?
    At very least audio recording + slides.

  • There is a survey for attendees.

  • DPLA & Standford did lots of work for HyBox.
    See project in projecthydra-labs for feature requests.

Side loading and derivatives

  • Hydra-derivatives 3.0 by PR #84

    • Breaks backwards compatibility

    • Addresses Nathan Rogers use case. Ingesting lots of big objects.

    • Derivatives require a lot of network traffic when pulling bitstreams from Fedora.

    • This alternative is to keep files in staging area on disk.

    • Potential drawback is process doing this is staging location has to be visible to characterization job.

    • OutputFileService defaults to being on disk

    • Use case for some derivatives going into repository and some on disk/cache needs to be tested.

Other urgent things

  • Hydra-derivaties PR #83.
    Closes IO hanging issue.

  • Full text extraction solr errors

    • Update FULLTEXT_JARS according to Sufia issue.

    • Jars need to be updated to solr 4.10 compatibility.

    • Should jars be obtained from solr distro or maven?

  • There is room for improvement around hydra jetty and configuration management.