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From Wes McKinney <wesmck...@gmail.com>
Subject [RESULT] [VOTE] Accept contribution of Plasma Object Store
Date Sun, 23 Jul 2017 18:35:44 GMT
With 6 +1 votes (3 binding), and no +0 or -1 votes, the vote to
determine whether the Arrow PMC accepts the Plasma Object Store
passes. Thank you to all who voted in support of this.

The Arrow PMC will work with the code authors to complete the ASF IP
Clearance process so that this code can be included in a future Apache
Arrow release.

- Wes

On Sun, Jul 23, 2017 at 11:00 AM, Arun K. Subramaniyan
<sarunkarthi@gmail.com> wrote:
> +1
>
> On Sun, Jul 23, 2017 at 1:16 AM Uwe L. Korn <uwelk@xhochy.com> wrote:
>
>> +1
>>
>> On Fri, Jul 21, 2017, at 01:37 AM, Julian Hyde wrote:
>> > +1
>> >
>> > > On Jul 20, 2017, at 3:07 PM, Bryan Cutler <cutlerb@gmail.com> wrote:
>> > >
>> > > +1 sounds great!
>> > >
>> > > On Thu, Jul 20, 2017 at 11:14 AM, Wes McKinney <wesmckinn@gmail.com>
>> wrote:
>> > >
>> > >> Dear all,
>> > >>
>> > >> The Plasma Object Store provides a server process, reference C++
>> client,
>> > >> and
>> > >> Python binding for managing a collection of binary "objects" in POSIX
>> > >> shared
>> > >> memory. Applications use a lightweight messaging protocol to create
>> and
>> > >> delete
>> > >> memory blocks in the object store, evict objects to make room for new
>> > >> objects,
>> > >> and increment and decrement reference counts to indicate shared
>> ownership
>> > >> of
>> > >> memory. It also provides for subscribing to notifications about object
>> > >> activity. The system helps simplify ownership transfer and memory
>> lifetime
>> > >> of
>> > >> shared memory blocks, which can be much more complicated in a
>> peer-to-peer
>> > >> architecture.
>> > >>
>> > >> The object store has been used in conjunction with the Apache Arrow
>> > >> libraries
>> > >> to provide for zero-copy access to collections of large objects
>> stored in
>> > >> shared memory. Incorporating this project into Apache Arrow will help
>> the
>> > >> community continue to develop and innovate technology for low-overhead
>> > >> sharing
>> > >> of complex datasets across multiple processes.
>> > >>
>> > >> Plasma Object Store was developed by the Ray project with the UC
>> Berkeley
>> > >> RISELab. There have been 8 contributors, with about 3.1 KLOC of C++
>> code
>> > >> and an
>> > >> additional 5.1 KLOC of thirdparty C and C++ code which we have
>> reviewed for
>> > >> compatibility with the Apache Software Foundation's policies on
>> license
>> > >> compatibility.
>> > >>
>> > >> This code was split off from the Ray project from commit id
>> > >> `b94b4a35e04d8d2c0af4420518a4e9a94c1c9b9f` [1] and modified by the
>> > >> authors for
>> > >> inclusion in Apache Arrow in a GitHub pull request [2]. This code has
>> been
>> > >> staged in a separate repository for review by the community and ASF
IP
>> > >> Clearance:
>> > >>
>> > >> - https://github.com/ray-project/arrow-plasma-object-store/tree/
>> > >> 11795753b0850cf5ad50d640067a8517ad8629a2#diff-
>> > >> 69e56fcedf1b794992b790684902dcd4
>> > >>
>> > >> This vote is to determine whether the Arrow PMC is in favor of
>> accepting
>> > >> the
>> > >> code contribution. If the vote passes, the PMC and the authors of the
>> code
>> > >> will
>> > >> work together to complete the ASF IP Clearance process and import the
>> > >> Plasma
>> > >> Object Store into Apache Arrow for inclusion in a future release:
>> > >>
>> > >>    [ ] +1 : Accept contribution of Plasma Object Store
>> > >>    [ ]  0 : No opinion
>> > >>    [ ] -1 : Reject contribution because...
>> > >>
>> > >> The vote is open for 72 hours and will close at 18:15 UTC on Sunday
>> 23 July
>> > >> 2017 and the results will be announced on this list.
>> > >>
>> > >> Thanks,
>> > >> Wes
>> > >>
>> > >> [1]: https://github.com/ray-project/ray/commit/
>> > >> b94b4a35e04d8d2c0af4420518a4e9a94c1c9b9f
>> > >> [2]: https://github.com/apache/arrow/pull/742
>> > >>
>> >
>>

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