October OpenZFS Leadership Meeting

[Matthew Ahrens]

Thanks to everyone who participated.  The video from this week's meeting is
now posted: https://youtu.be/KzdgeBFmLl8

Meeting notes:

   -

   Determine AI’s from conference discussions
   -

      Code reviews for Add "features" property for zpool feature sets. · PR
      #10980 <https://github.com/openzfs/zfs/pull/10980>
      -

         PR needs reviewers of 2 kinds:
         -

            [1] Reviewers of the actual code
            -

            [2] Reviewers for the feature sets outlined
            -

      Draid code reviews (Brian)
      -

         There is a PR out and we are looking for reviewers.
         -

         Brian is expected to squash his commits today or tomorrow to make
         reviews easier
         -

         It is a lot of code so the more reviewers the better - if you are
         interested in how dRaid works, how it interacts with the rest of ZFS’s
         features, or just want to read the documentation and see the tradeoffs
         involved in its usage you are more than welcome to take a
look at the PR.
         -

         Brian is also welcoming people to pull the code and test it
         -

      Block reference tracking design doc (Matt/Pawel)
      -

         There was some work on writing up an initial design doc in the
         conference
         -

         The goal here is to complete the doc and share it in one of the
         future meetings.
         -

      Terminology review, make sure we use the terms “Healing resilver” in
      the docs, and maybe even zpool status etc (Allan)
      -

         After Mark Maybee’s sequential rebuild talk during the summit, it
         would be nice to have distinct terminology for the two
resilver options
         that we provide.
         -

         This work entails ensuring that there is no ambiguous terminology
         used in docs, man pages, and command output.
         -

      ZDB --cp upstreaming (Allan)
      -

         Initial PR is out - the span of this work does not include the zdb
         long-opts refactoring
         -

         Current status:
         -

            Need to add some test cases for the feature and add its option
            to the help message
            -

            Update PR with misc fixes like the dump_all option bug
            -

         Potential future work for this would be to use the dnode’s
         blocksize (instead of the standard 1MB used now)
         -

      Forced Export Feature (Allan)
      -

         Feature was rebased to latest master with some new improvements
         -

         PR should be out soon
         -

         Of particular interest may be the code introduced for dataset
         unmounting in Linux to work around some specific VFS cases
         -

      zfs list improvements (Allan)
      -

         There is some effort in the works of making the usage of zfs-list
         faster when specific dataset info/properties are requested as
some of them
         are bundled with the information queried at the initial
stages of dataset
         lookup.


On Mon, Oct 12, 2020 at 3:04 PM Matthew Ahrens <mahrens at delphix.com> wrote:

> The next OpenZFS Leadership meeting will be held tomorrow, October 12,
> 9am-10am Pacific time.  We don't have many topics on the agenda for
> tomorrow's meeting, so let me know if you'd like to add anything.
>
> FYI, we held the 2020 OpenZFS Developer Summit
> <https://openzfs.org/wiki/OpenZFS_Developer_Summit_2020> last week, and
> the videos for it are now posted.  If you have questions about any of the
> material presented at the conference, tomorrow's meeting would be a good
> time to discuss them.
>
> Everyone is welcome to attend and participate, and we will try to keep the
> meeting on agenda and on time.  The meetings will be held online via Zoom,
> and recorded and posted to the website and YouTube after the meeting.
>
> For more information and details on how to attend, as well as notes and
> video from the previous meeting, please see the agenda document:
>
>
> https://docs.google.com/document/d/1w2jv2XVYFmBVvG1EGf-9A5HBVsjAYoLIFZAnWHhV-BM/edit
>
> --matt
>