Northwestern University Libraries is currently running Samvera applications in production. Three of these are developed, maintained, and managed by the Repository & Digital Curation workgroup, * Arch, an Institutional Repository, based on Hyrax 2.4.1 * AVR, Northwestern's audiovisual repository, based on Avalon 6.3 * DONUT, the staff-facing ingest interface for the digital object repository, based on Hyrax 2.4.1 In developing and deploying these applications, we have encountered (and mostly overcome) numerous stumbling blocks relating to performance, scalability, customization, and assumptions about the deployment environment and infrastructure on which the apps will run. While we have found it possible to shoehorn the Samvera stack (as it exists today) into our Amazon Web Services cloud-based deployment environment, we have also started to investigate the rewards and compromises involved in taking a cloud-first approach to our next generation of tools. We have identified several basic tenets for this approach so far, * If AWS offers a native Software-as-a-Service (SaaS) solution for a particular problem, use it (e.g., choose ElasticSearch/Cloud Search over Solr) * Avoid virtual server instances that run 24x7 waiting for requests/work * Do not assume there is a local filesystem to work with * Optimize startup time so that units of work can be spawned and killed as needed * Constantly assess and reassess every unit of work for scalability, repeatability, and idempotence * Keep data portable and code adaptable, but don't over-stress about vendor lock-in In this presentation, members of the Repository Development & Administration Team will present on lessons learned from 7 years of working with Samvera, Avalon, and Hyrax, what the future holds for our next round of in-house development, and the opportunities & compromises our cloud-first approach creates regarding our use of and contributions to the larger Samvera community., and A presentation at Samvera Virtual Connect 2019 described thus
Keyword:
Cloud services, Samvera, and Virtual Connect 2019
Subject:
Samvera Community
Creator:
Klein, Michael B
Contributor:
Quinn, Brendan, Schober, David, Arling, Adam, Shaw, Karen, and Northwestern University
A presentation at Samvera Virtual Connect 2019 described thus and We'll go over the Apartment gem, what it means and how it is integrated in the the multi-tenant structure of Hyku.
A presentation at Samvera Virtual Connect 2019 described thus and 6,761,224,773 words. 2,823,957 images. 200+ content sources. And a very long tail of unique metadata fields. This will be a "by the numbers" tour of the digital collections at the University of Michigan Library that highlights some of the challenges of designing and building a new repository and access system for our digital collections that can handle scale, variety, growth, and a rich feature set.
A presentation at Samvera Virtual Connect 2019 described thus and Samvera Metadata Interest Group Update - Julie Hardesty (Indiana University) Samvera URI Selection Working Group - Ryan Wick (Oregon State University) MODS to RDF Working Group - Eben English (Boston Public Library) Machine-readable Metadata Modeling Specification (M3) Working Group - Arwen Hutt (UC San Diego) Samvera Geospatial Predicates Working Group - James Griffin (Princeton University) Newspapers Interest Group Update - Eben English (Boston Public Library) Repo Managers Interest Group - Nabeela Jaffer (University of Michigan)
Keyword:
Interest and Working Groups, Virtual Connect 2019, and Samvera
Subject:
Samvera Community
Creator:
Samvera Geospatial Predicates Working Group, Samvera URI Selection Working Group, Samvera Metadata Interest Group, Newspapers Interest Group, MODS to RDF Working Group, Machine-readable Metadata Modeling Specification (M3) Working Group, and Repository Managers Interest Group
A lightning talk at Samvera Virtual Connect 2018 described thus and Bridge2Hyku is an IMLS-funded grant project that is building a migration toolkit to assist institutions interested in migrating their digital content to Hyku. The toolkit contains general guidance for migration planning, documentation for software that enables efficient and effective data migration, and an introduction to the Hyku platform. This presentation will provide an overview of the project goals and timeline, an update on project progress, and information about how to contribute to the Bridge2Hyku migration toolkit.
Keyword:
Grants, Samvera, Virtual Connect 2018, Migration, Lightning talk, and Hyku
Subject:
Samvera Community
Creator:
Crocken, Todd
Contributor:
University of Houston and Institute of Museum and Library Services
A lightning talk at Samvera Virtual Connect 2018 described thus and Avalon Media System is working towards a release to integrate with Hyrax in support of time-based media formats. This includes creating a Work type to support the needs of audio and video formats and provide an upgrade path for those who have been using Avalon in it’s previous releases as a standalone Samvera product. Join us for a look at the new Audiovisual Work type, specifically how we’re transitioning descriptive metadata from MODS XML to RDF. A video recording of this session is available at the 'Related URL' below.
Keyword:
Avalon, Samvera, Virtual Connect 2018, Lightning talk, Hyrax, and Metadata
Subject:
Avalon Media System and Samvera Community
Creator:
Hardesty, Juliet L and Young, Jennifer
Contributor:
Indiana University, University of Utah, and Northwestern University
A lightning talk at Samvera Virtual Connect 2018 described thus and Beginning in April, folks from DuraSpace, Stanford University, Digital Curation Experts, CoSector (U. of London), Ubiquity Press, Texas Digital Library and Notch8 have been meeting to discuss their experiences hosting Hyku and develop a roadmap for its future. This presentation will update the Samvera community on the work group members have done to host and implement Hyku, plans for future work, and present several topics for consideration such as a potential governance structure and the feasibility of Hyku going forward.
Keyword:
Samvera, Virtual Connect 2018, Lightning talk, and Hyku
Subject:
Samvera Community
Creator:
Woodward, Nick
Contributor:
Stanford University, Notch8, Data Curation Experts, CoSector, University of London, DuraSpace, Ubiquity Press, University of Texas at Austin, and Hyku Service Provider Group
Valkyrie is a new persistence layer for Samvera, designed to address performance and sustainability problems. It was developed through the existing Samvera Working Group process, showing that the current Samvera community governance structure can be used to tackle big problems. Valkyrie features pluggable persistence options, allowing Samvera applications to use not just the historical combination of Fedora and Solr, but also other options like Fedora or Solr by themselves, PostgreSQL, and local disk. Allowing Samvera applications to use different persistence options refocuses the Samvera community, shifting away from persistence in Fedora as the defining aspect of the community. Instead, the focus shifts to the shared tools built by the community. and A presentation at Samvera Virtual Connect 2018 described thus
Keyword:
Lightning talk, Virtual Connect 2018, Samvera, and Valkyrie
A lightning talk at Samvera Virtual Connect 2018 described thus and At Samvera Connect 2017, we presented a draft roadmap for the Hyrax 2.x-3.x release series. Since then, much work has been done to fulfill the promise of that roadmap, and work continues. In this talk we'll quickly review the roadmap, discuss the current status of work on Hyrax, and call for participation in future development efforts to bring Hyrax to 3.0 as soon as feasible.
Keyword:
Samvera, Roadmap, Virtual Connect 2018, Lightning talk, and Hyrax
A lightning talk at Samvera Virtual Connect 2018 described thus and IIIF Presentation 3.0 pushes beyond only images to support time-based media. This presentation will explain the new possibilities and how the Avalon team is helping to bring those to Hyrax.
Keyword:
Hyrax, Lightning talk, Avalon, Virtual Connect 2018, International Image Interoperability Framework (IIIF), and Samvera