Time/Place

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

Attendees

Agenda

  1. Multi-document Indexing
  2. Fedora ontology
  3. Clustering status
  4. other...

Minutes

Multi-document indexing

  1. Early on, we realized rich indexing is important
  2. Indexing should be externalized
  3. Eric James raised the issue that currently there is just a one-to-one mapping of index-document to resource
  4. Goals
    • Persist multi-mapping in the repository
    • Maintain architectural boundaries

Fedora ontology

  1. We need to more clearly define Fedora's three ontologies
  2. We also need to make the elements of the ontologies better defined
  3. To what extent are our ontologies independent from the JCR notions
  4. Art Inst. of Chicago will be publishing their ontology soon
  5. Question on the need (or lack thereof) built-in dependencies to Dublin Core
  6. Possibly use transform module to present properties
  7. Notions: persisting, presenting, inferring assertions

General Search

  1. What will be the most reliable search mechanism
  2. Chicago is begining to build a client
  3. Recommendation is to go external
  4. All three are in the same tomcat (fcrepo, jms-indexer, sesame)
  5. Andrew to create ticket: restarting fedora makes tomcat hang

Clustering

  1. Was able to get a configuration working with "distributed" node
    • not exactly performant, but no errors
    • working on local network, will test on SCC next
  2. Results at the moment
    • 200mb/s (20 threads) - single
    • 2mb/s (20 threads) - cluster
  3. Will be creating a github project with the configuration
  4. Two weeks, need to present fcrepo (FIZ)
  5. Request to have others test Frank's posted configuration
  6. Stefano may be able to test this

Stefano

  1. Interest in dissemination
  2. Automated generation of derivatives on ingest
  3. Working on an external data-transformation service
    • metadata, thumbnails, etc
  4. Looking at an event model
  5. Sequencers seem like a good approach
    • They are not exactly flexible
  6. Interest in JMS and/or webhooks
  7. There is also a separate goal of interest
    • Create a public repo that mirrors only part of the internal repo
    • Could permissions help here? or separate workspaces? or a mirrored repo?

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