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  • Wanted to check with Tamsin on where things are with RDF upgrade.

  • Concern that I have is that Greg Kallick(?) has a PR into LDP or to 3.2 for all RDF gems

  • In Avalon-space we're stuck in an older rdf-vocab space as some things have changed

    • Might drop rdf-vocab long term

  • Tamsin

    • What happened over holidays - Greg rewrote in-memory data repository

    • Past version used a Hash Arraymapped Tree to make small memory footprint while allowing for fast updates and fully-snapshottable transactions

      • Grab data in memory at any point and just hold it in memory

      • Downside: data structure was fundamentally unordered - find for RDF but not everything else.

        • Greg flipped it back - not sure motivation

        • New implementation that looks a lot like an old implementation

        • Snapshotting is retained

        • Some breakages as a part of that - some naming changed. On Monday Tamsin renamed to the previous name. Should be fixed.

          • However, a little worried about the memory properties of this datastructure

          • If being conservative, might not want to upgrade RDF to latest yet - especially where people are doing big reindexes, this might have issues

          • Going to do some benchmarking/testing - we might want to revert if it doesn't hold up

          • Greg concerned about breaking RDP/active-triples, think these changes are related to that

      • Chris put some comments but not much in the PR review

      • Seems like upgrade to 3.2 forced all other RDF gems to 3.2 , concerned about that

      • Tamsin - we may be able to change that. Will look at it this afternoon.

Moderator/notetaker next week

  • Moderator: Max Kadel

  • Notetaker: Chirs Colvard

Lynette will solicit feedback for Questioning Authority PR - Chris Colvard offered to stay on Zoom and talk about it