23rd November, 2020 (SPEC call)

Attending: Josh Moore, David Brochart, Matthias Bussonnier, Sylvain Corlay, John Kirkham, Ryan Williams

• SC: Very late. Difficult if it gets moved later.

  • Earliest for Matthias? It’s fine. 5-6 AM

  • RyanW: 7-8 AM California until 7-8PM Frances

    • Will try to move things around next time so it’s still not too long.

• EOSS Presentation

  • 1 minute & 15 minute

    • 10min of presentation 5 of questions
    • Accessible to broader technical audience

  • David: some slides that would be ok for 15 minute (3-4pp)

  • Matthias: 50% David, 50% Matthias, and a little shared context.

  • John: two short to split it into 3 parts.

  • BD: looking at xtensor-zarr slides

    • NB: zarray as a dask-like experience on chunked arrays (i.e. beyond just the storage part of zarr)

  • MB to add his content to BD’s slides.

    • What is Zarr? (2-3 min)

      • Distributed arrays, implementation in python

      • More cross-language

    • Zarr-Python

      • (clear distinction to “Zarr”)

    • Zarr v3

      • (Waiting on feedback)

      • Show current working implementation

      • Screenshots, etc.

  • RW: 10m. (a) Talk about the project (b) state of spec (c)

    xtensor-zarr

    • MB: can start & make the transition smoother

    • BD: agreed, too technical. Will simplify at a higher level.

    • JK: covering the points that were in the original proposal

      • Not enough time to cover governance

    • JM: feel free to steal from “public zarr data”

    • JM: Should get everyone invited to slack. RW: will do.

    • RW: Recorded dress-rehearsal. Sync again next week?

    • JM: one minute pitch? MB: will try to do that as well.

    • RW: issue? MB: yes, then the recording can be available for others who aren’t there.

• V3 spec sync-up (largely tabled)

  • MB: Delete changed to erase

  • MB: Distinction between writable and deletable

  • JM: Timeline?